Mohammad Mahir Uddin - Academia.edu (original) (raw)

Papers by Mohammad Mahir Uddin

Three cucurbitaceous vegetables viz. sweet gourd (BARI Misti Kumra-1, BARI Misti Kumra-2 and Loca... more Three cucurbitaceous vegetables viz. sweet gourd (BARI Misti Kumra-1, BARI Misti Kumra-2 and Local Misti Kumra), bitter gourd (BARI Karola-1, Taj Karola-88 and Local Karola) and bottle gourd (BARI Lau-3, BARI Lau -4 and Local Lau) were selected to conduct a research on the incidence and host preference of red pumpkin beetle. In the field experiment at all the three stages, the highest incidence of red pumpkin beetle per plant was observed on sweet gourd and lowest on bitter gourd. The maximum number of beetle was observed on Local Misti Kumra at all the three stages and the lowest number of beetle was found on BARI Karola-1 at seedling stage and on Taj Karola-88 at flowering stage and on Local Karola at fruiting stage in the field. In net cage experiment, the highest and lowest number of beetle was also observed on sweet gourd and bitter gourd respectively. In the net cage among the nine varieties, the maximum number of beetle was observed on Local Misti Kumra. At all the three stag...

Journal of the Bangladesh Agricultural University, 2018

Pulses serve as one of the main sources of protein and minerals as well as play a vital socio-eco... more Pulses serve as one of the main sources of protein and minerals as well as play a vital socio-economic role in the diet of common people of Bangladesh but these pulses suffer enormous losses due to infestation of a serious insect pest pulse beetle, Callosobruchus chinensis L. As a part of eco-friendly management of this detrimental pest, an experiment was conducted at the laboratory to determine the toxicity of spinosad against the pulse beetle, C. chinensis L. directly by using dry film contact toxicity method and indirectly by treating chickpea seeds. In the direct method spinosad showed contact toxicity and the lethal concentration of spinosad was 117.46, 76.05 and 37.45 ppm at 24, 48 and 72 hours after treatment, respectively. On the other hand, the LC50 values were 990.34, 301.35 and 95.08 ppm after 24, 48 and 72 HAT, respectively as per indirect method. A dose-dependent relation with the mortality was observed by both methods. Spinosad was also significantly effective in reduc...

International Journal of Applied Sciences and Biotechnology, 2016

Comparative field efficacy of different control measures of okra shoot and fruit borer, Earias vi... more Comparative field efficacy of different control measures of okra shoot and fruit borer, Earias vittella were evaluated in the Entomology Field Laboratory, Bangladesh Agricultural University during February to May, 2014. Field efficacy of two selected chemical insecticides (Decis 2.5EC, Agritaf 50SP), three botanicals (Neem oil, Pitraj oil and Mahogany oil), one parasitoid (Trichogramma chilonis), Light trap along with Hand picking and Trap crop (Maize) were evaluated by analyzing percent shoot and fruit infestations. BARI-1 (okra variety) was used as a test crop in the experiment. Among the tactics, the minimum shoot (4.72%) and fruit infestations (6.77%) were observed in the plots treated with Decis 2.5EC followed by Neem oil treated plots (4.83% in shoot and 7.56% in fruit). The highest reduction of percent shoot infestation (79.89%) and fruit infestation (64.97%) over untreated control plots was found in the Decis 2.5EC sprayed plots followed by Neem oil while the lowest percent reduction of shoot infestation (29.86%) and fruit infestation (29.43%) were recorded in case of Light trap + hand picking. Neem oil and Decis 2.5EC were found very effective in managing E. vittella up to 7 days after each spraying. Agritaf 50SP, Pitraj oil, Mahogany oil, T. chilonis and trap crop were also found effective over untreated control plots although were significantly lower than Decis 2.5EC and Neem oil. Therefore, application of Decis 2.5EC and Neem oil were mostly effective and Light trap + hand picking was the least effective measures in controlling E. vittella.

Research in Agriculture Livestock and Fisheries, 2016

Experiments were carried out in the field and in the laboratory of the Department of Entomology, ... more Experiments were carried out in the field and in the laboratory of the Department of Entomology, Bangladesh Agricultural University during the period from February to August, 2013. Three cucurbitaceous vegetables viz. bitter gourd, ridge gour d and snake gourd were used as test crops. Considering to percent leaf infestation and leaf area consumptions, red pumpkin beetle was found mostly harmful to snake gourd (22.62% and 8.84%, respectively) but least harmful to bitter gourd (3.00% and 1.25%, respectively). On the other hand, Epilachna beetle was found mostly damaging to bitter gourd (46.00% and 21.67% respectively) and least damaging to ridge gourd (11.20% and 5.00%, respectively). Similar to the field experiments, red pumpkin beetle consumed more leaf areas of snake gourd (up to 43.36%) and Epilachna beetle (both adult and grubs) consumed more leaf areas of bitter gourd (up to 91.46%) in the laboratory experiments. Bitter gourd (1.42%) and ridge gourd (0.78% to 41.27%) were least preferable to the red pumpkin beetle and Epilachna beetle, respectively. To cite this article: Rahman MM and MM Uddin, 2016. Comparative study on host preference and damage potentiality of Red pumpkin beetle, Aulacophora foveicollis and Epilachna beetles, Epilachna dodecastigma.

Progressive Agriculture, 2014

The research was carried out in the field and laboratory of the Department of Entomology, Banglad... more The research was carried out in the field and laboratory of the Department of Entomology, Bangladesh Agricultural University, Mymensingh during December, 2011 to October, 2012 on the effect of host and temperature on oviposition and food consumption of red pumpkin beetle (RPB), Aulacophora foveicollis (Lucas). Three cucurbitaceous vegetables viz. sweet gourd (BARI Misti Kumra-1, BARI Misti Kumra-2 and Local Misti Kumra), bitter gourd (BARI Karola-1, Taj Karola-88 and Local Karola) and bottle gourd (BARI Lau-3, BARI Lau -4 and Local Lau) were selected to conduct this research. Host plants had the clear role on the feeding of red pumpkin beetle. Due to feeding of A. foveicollis, the highest percentage of weight loss of leaf was recorded from sweet gourd among the selected cucurbits while Local Misti Kumra was found the most preferred host by beetle considering their feeding efficacy compared to other varieties. Results also showed that temperature had a profound effect on the oviposit...

Fundamental and Applied Agriculture, 2019

An experiment was conducted during the period of December 2014 to March, 2015 in the Entomology F... more An experiment was conducted during the period of December 2014 to March, 2015 in the Entomology Field Laboratory, Department of Entomology, Bangladesh Agricultural University on the management of tomato fruit borer, Helicoverpa armigera (Hübner) using different biorational insecticides on winter tomato variety BARI-2 in Bangladesh. Efficacy of seven different biorational insecticides viz. Neem oil, Mahogany oil, Karanja oil, Ambush 1.8 EC, Libsen 45 SC, Emamectin benzoate 5 SG and Beauveria bassiana were evaluated on the basis of percentage of fruit damage and percentage increase/decrease of yield. All the biorational insecticides were significantly effective in comparison to control treatment. Besides, among seven insecticides; Emamectin benzoate 5 SG provided the best result with the lowest cumulative mean percentage fruit infestation (20.95% and 17.24% based on number and weight, respectively). Percentage reduction of infested fruit was the highest (57.50 and 62.38%, by number and weight, respectively) in Emamectin treated plots. Similarly the highest percentage protection (58.99 and 63.06% by number and weight, respectively) of infested fruit was also found from the Emamectin benzoate treatment. But Libsen 45 SC revealed the highest efficacy on marketable fruit yield (20.23 t ha −1) compared to other treatments. So, Emamectin benzoate and Libsen both might be used to manage tomato fruit borer effectively.

The Scientific World Journal, 2014

An experiment was conducted in Field Laboratory, Department of Entomology at Bangladesh Agricultu... more An experiment was conducted in Field Laboratory, Department of Entomology at Bangladesh Agricultural University, Mymensingh, during 2013 to manage the mango hopper,Idioscopus clypealisL, using three chemical insecticides, Imidacloprid (0.3%), Endosulfan (0.5%), and Cypermethrin (0.4%), and natural Neem oil (3%) with three replications of each. All the treatments were significantly effective in managing mango hopper in comparison to the control. Imidacloprid showed the highest efficacy in percentage of reduction of hopper population (92.50 ± 9.02) at 72 hours after treatment in case of 2nd spray. It also showed the highest overall percentage of reduction (88.59 ± 8.64) of hopper population and less toxicity to natural enemies including green ant, spider, and lacewing of mango hopper. In case of biopesticide, azadirachtin based Neem oil was found effective against mango hopper as 48.35, 60.15, and 56.54% reduction after 24, 72, and 168 hours of spraying, respectively, which was compar...

Acta Horticulturae, 2004

The present study was conducted during October 2014 to June 2015 in the farm of Bangabandhu Sheik... more The present study was conducted during October 2014 to June 2015 in the farm of Bangabandhu Sheikh Mujibur Rahman Agricultural University (BSMRAU), Gazipur to find out the most effective management option (s) against brinjal shoot and fruit borer (BSFB) with 6 treatments namely, Beauveria bassiana, 1109 CFU @ g l-1 , Bioneem 0.3 EC (Azadirachtin) @ 1.5 ml l-1 , Tracer 45 SC (Spinosad) @ 0.4 ml l-1 , Vertimec 1.8 EC (Abamectin) @ 1.2 ml l-1 of water, Mechanical control (hand picking) with clean cultivation and untreated control. Results revealed that shoot infestation at pre-fruiting stage was the lowest in Bioneem 0.3 EC (4.34%) and at fruiting stage in Tracer 45 SC treated plot (7.75%) and the highest was in untreated control plot (17.94% at pre-fruiting stage and 39.46 at fruiting stage). The lowest fruit infestation by BSFB was obtained with Tracer 45 SC (8.16% n/n and 10.0% w/w) followed by B. bassiana, 1109 CFU (23.23% n/n and 18.27% w/w) and the highest infestation was observed under untreated control plot (48.59% n/n and 32.09% w/w). Percent reduction of infested fruit by number (83.21%) and weight (68.84%) over untreated control was higher in Tracer 45 SC treated plot resulting significantly higher marketable yield. Therefore, the significant highest marketable yield (34.39 t ha-1) was harvested in the plot treated with Tracer 45 SC followed by 22.78 t ha-1 with B. bassiana, 1109 CFU and 19.26 t ha-1 from Vertimec 1.8 EC treated plot. The highest benefit cost ratio of 3.05 was obtained from Tracer 45 SC followed by 2.93 in B. bassiana, 1109 CFU and 2.89 with Vertimec 1.8 EC sprayed plot.

Journal of Applied Botany and Food Quality, 2009

Glucosinolates (GS) are sulfur-rich secondary metabolites found in the Brassicaceae and other rel... more Glucosinolates (GS) are sulfur-rich secondary metabolites found in the Brassicaceae and other related families of the order Brassicales. GS consist of structurally-related compounds with different side chains. To explore the possibility that various side chain confer divergent biological activities to individual GS, we have investigated the performance of the specialist pest beetle, Phaedon cochleariae (F.) on Arabidopsis thaliana L. mutants and Columbia wild-type (WT) which differ in the main group of GS. Plant lines of A. thaliana altered for the expression of MAM3, because of the introduction of an overexpression construct of MAM3 (mam3 +) or containing double knockouts of CYP79B2 and CYP79B3 (cyp79B2-/cyp79B3-) were used for the study in comparison to the WT. A. thaliana genotypes differed in their GS profiles. The highest GS content was present in the WT followed by mam3 + and cyp79B2-/ cyp79B3-. A modified aliphatic GS content was detected for the mam3 + as compared to the WT lines. Furthermore, indolyl GS were completely absent in cyp79B2-/cyp79B3-. The percentage weight increase of larvae raised on each of the three plant genotypes was significant different. Larval performance was poorest on plants of cyp79B2-/cyp79B3and best on WT, but there was no significant difference found in percentage weight increase on mam3 + and WT. There was no correlation between the weight increase of the larvae on genotypes and induced levels of aliphatic, indolyl, and total GS. However, the poor performance of beetle larvae on cyp79B2-/ cyp79B3compared to WT and mam3 + might be explained by comparable high aliphatic GS levels of this mutant, a different induction of secondary metabolites, and the absence of indolyl GS. Basic knowledge about the relationship of GS structures and their insect pests may help in further resistance breeding of crucifer crops.

Experiments were carried out to investigate the host preference of cucurbit fruit fly, Bactrocera... more Experiments were carried out to investigate the host preference of cucurbit fruit fly, Bactrocera cucurbitae and its management to cucurbitaceous vegetables namely, bitter gourd, ridge gourd and snake gourd. Among the vegetables, bitter gourd was found as mostly preferable (upto 40.69% fruit infestation) and snake gourd was found as the least preferable (18.64% fruit infestation). Among management tactics (fruit bagging, neem oil, mahogany oil, alamonda leaf extract, pheromone trap and cider vinegar traps), bagging reduced maximum fruit infestation (upto 75.51%) compared to controlled plots. Among the botanicals, neem oil was mostly effective (21.64% reduction of fruit infestations) followed by alamonda leaf extract and mahogany oil. Both traps were found effective and more insect were trapped in the pheromone trap.

The pulse beetle, Callosobruchus chinensis is one of the major pests in stored pulse causes 40-50... more The pulse beetle, Callosobruchus chinensis is one of the major pests in stored pulse causes 40-50% losses of pulses in storage. Experiments were conducted to study the efficacy of some selected biorational insecticides on percent mortality of beetle, percent weight loss of seeds, no. of eggs laid per female, percent hatchability, larval duration, pupal period and adult longevity of pulse beetle, Callosobruchus chinensis under laboratory condition. Among the different botanicals, neem oil (77%) was found the most effective showing 78% mortality of pulse beetle in direct method followed by Mahogany oil (69%) and karanja oil (62%). In case of indirect method, the highest percent mortality was recorded from karanja oil (37%) which was followed by Neem oil (33%) and Mahogany oil (33%). Among different microbial derivatives, Libsen was found most effective considering mortality followed by Suspend 5SG and Ambush 1.8EC. The highest percentage of weight reduction was observed in Karanja oil...

Research in Agriculture Livestock and Fisheries, 2016

Experiments were conducted to study the feeding, growth and chemical control of hog-plum beetle (... more Experiments were conducted to study the feeding, growth and chemical control of hog-plum beetle (Podontia 14-punctata) in the laboratory and in the field. It was found that larval leaf consumption gradually increased with the increase of age of larva. Mean leaf consumption per larva was 0.28g, 0.86g and 1.70g after 24, 72 and 144 hrs, respectively. Growth pattern of larva was depended on the rate of leaf consumption. The average body weight of larvae was increased with time and per larva was recorded as 0.06g, 0.19g and 0.45g after 24, 72 and 144 hrs of leaf consumption. Daily leaf consumption was higher in adults than larvae. Mean leaf consumption per adult was 0.24g, 0.91g and 1.87g after 24, 72 and 144 hrs, respectively. Mortality of larvae and adults against four chemical insecticides viz. Altima 40WG, Belt 24WG, Libsen 45SC and Limper 10EC were observed both in the laboratory and field. All the treatments had a significant effect on mortality percentage of larva and adult in comparison to control. The highest mortality percentage of the larva (86.67) and adult (80.00) were observed in the case of Limper 10EC at 72 hrs after spraying. However, there was no significant difference observed in efficacy among Limper 10EC, Belt 24WG and Libsen 45SC. In field, percentage of leaf protection over control after 1 st spray was the highest (37.95) in Limper 10EC and the lowest (20.86) in Altima 40WG treated plants. The results of laboratory and field trials revealed that Limper 10EC might be recommended for effective control of P. 14-punctata.

Agronomy for Sustainable Development

Eggplant shoot and fruit borer, Leucinodes orbonalis, is a major pest in eggplant production in S... more Eggplant shoot and fruit borer, Leucinodes orbonalis, is a major pest in eggplant production in South and South-East Asia. Farmers frequently spray insecticides to control it. Integrated pest management (IPM) based on mass trapping or pheromone trapping and sanitation (removal of infested shoots and fruits) has been suggested but poorly adopted. This study tested, together with farmers, combinations of IPM components that fit their farming practices, increase income, and preserve natural enemy populations. A 2-year participatory study was negotiated with these farmers, comparing (i) an untreated control, (ii) farmers’ conventional weekly spraying, with pheromone trapping either (iii) alone, or combined with (iv) trap-based biorational spraying, or (v) bi-weekly conventional insecticide spraying. Farmers rejected testing sanitation as too labor-intensive. In both years, pheromone trapping alone or combined with biorational spraying reduced fruit infestation, increased yield and incom...

Introduction of exotic plant species in the tropics has occurred since the colonial period, and h... more Introduction of exotic plant species in the tropics has occurred since the colonial period, and has mostly been for timber production. However, due to uncontrolled distribution and lack of awareness, many of these species became invasive, and have been increasingly reported as a source of threats to native ecosystems. We investigated the exotic species richness, their traits, and biogeographic origin in the Satchari Forest in the northeastern region of Bangladesh, one of the very few intact terrestrial ecosystems remaining in the country. Boosted Regression Trees and Detrended Correspondence Analysis were performed to determine the contribution of various environmental attributes, protection regimes, and disturbances to explain the distribution of exotic species within Satchari Forest. Among the environmental variables, native species richness, elevation gradient, and soil nutrient parameters were found as good predictors of both exotic species' presence and richness in the area. In our analysis, number of exotic species showed a unimodal relationship with native species in the reserved forest, where the relationship was negative in the surrounding area. An increase in exotic species with the presence of higher anthropogenic disturbance events, thereby with lower conservation restrictions as well as with lower protection status, was also evident. Our study suggests that enforcing greater protection status and preventing human use can be the best ways to protect native species composition in forest ecosystems with greater conservation values in tropical developing countries.

Journal of the Bangladesh Agricultural University

Brinjal is susceptible to attack of various insect pests from seedling to fruiting stage. Among t... more Brinjal is susceptible to attack of various insect pests from seedling to fruiting stage. Among these, brinjal shoot and fruit borer, Leucinodes orbonalis (Guen.) is the most destructive pest and is considered to be the limiting factor in quantitative as well asqualitative harvest of brinjal fruits. In the present study, efficacy of some new insecticides viz. Pine 6 WG (Emamectin benzoate + Abamectin), Heron 5 EC (Lufenuron), Belt 24 WG (Flubendiamide) and Cyclone 2.5 EC (Lambda-cyhalothrin) were evaluated against brinjal shoot and fruit borer (BSFB) in field condition from the period of October, 2015 to April, 2016. The experiment was laid out in a Randomized Complete Block Design (RCBD) having three replications and two concentrations of each of the insecticides. A total of three spraying was given and finally a cumulative mean was found out. Data were collected on percent shoot infestation, percent fruit infestation, marketable fruit yield (t/ha) and abundances of natural enemies...

Bangladesh Journal of Plant Taxonomy, 2013

Teknaf Wildlife Sanctuary has been explored to assess angioperm diversity using traditional taxon... more Teknaf Wildlife Sanctuary has been explored to assess angioperm diversity using traditional taxonomic techniques during 2010 to 2011. The assessment has resulted inrecording of total 535 angioperm species under 103 familiies and 370 genera. For each species scientific name, Bangla name (whenever available), family and habit are provided. Of 535 species, 178 represented by herbs, 110 by shrubs, 150 by trees, 87 by climbers and 10 by epiphytes. In Magnoliopsida (dicots), Fabaceae is the largest family represented by 38 species, while in Liliopsida (monocots), Poaceae is the largest family represented by 29 species.DOI: http://dx.doi.org/10.3329/bjpt.v20i2.17389Bangladesh J. Plant Taxon. 20(2): 145-162, 2013

The research was carried out in the field and laboratory of the Department of Entomology, Banglad... more The research was carried out in the field and laboratory of the Department of Entomology, Bangladesh Agricultural University, Mymensingh during December, 2011 to October, 2012 on the effect of host and temperature on oviposition and food consumption of red pumpkin beetle (RPB), Aulacophora foveicollis (Lucas). Three cucurbitaceous vegetables viz. sweet gourd (BARI Misti Kumra-1, BARI Misti Kumra-2 and Local Misti Kumra), bitter gourd (BARI Karola-1, Taj Karola-88 and Local Karola) and bottle gourd (BARI Lau-3, BARI Lau-4 and Local Lau) were selected to conduct this research. Host plants had the clear role on the feeding of red pumpkin beetle. Due to feeding of A. foveicollis, the highest percentage of weight loss of leaf was recorded from sweet gourd among the selected cucurbits while Local Misti Kumra was found the most preferred host by beetle considering their feeding efficacy compared to other varieties. Results also showed that temperature had a profound effect on the oviposition and food consumption by A. foveicollis while 30 o C was the optimum temperature both for oviposition and food consumption for all selected cucurbits and their varieties.

Three cucurbitaceous vegetables viz. sweet gourd (BARI Misti Kumra-1, BARI Misti Kumra-2 and Loca... more Three cucurbitaceous vegetables viz. sweet gourd (BARI Misti Kumra-1, BARI Misti Kumra-2 and Local Misti Kumra), bitter gourd (BARI Karola-1, Taj Karola-88 and Local Karola) and bottle gourd (BARI Lau-3, BARI Lau -4 and Local Lau) were selected to conduct a research on the incidence and host preference of red pumpkin beetle. In the field experiment at all the three stages, the highest incidence of red pumpkin beetle per plant was observed on sweet gourd and lowest on bitter gourd. The maximum number of beetle was observed on Local Misti Kumra at all the three stages and the lowest number of beetle was found on BARI Karola-1 at seedling stage and on Taj Karola-88 at flowering stage and on Local Karola at fruiting stage in the field. In net cage experiment, the highest and lowest number of beetle was also observed on sweet gourd and bitter gourd respectively. In the net cage among the nine varieties, the maximum number of beetle was observed on Local Misti Kumra. At all the three stag...

Journal of the Bangladesh Agricultural University, 2018

Pulses serve as one of the main sources of protein and minerals as well as play a vital socio-eco... more Pulses serve as one of the main sources of protein and minerals as well as play a vital socio-economic role in the diet of common people of Bangladesh but these pulses suffer enormous losses due to infestation of a serious insect pest pulse beetle, Callosobruchus chinensis L. As a part of eco-friendly management of this detrimental pest, an experiment was conducted at the laboratory to determine the toxicity of spinosad against the pulse beetle, C. chinensis L. directly by using dry film contact toxicity method and indirectly by treating chickpea seeds. In the direct method spinosad showed contact toxicity and the lethal concentration of spinosad was 117.46, 76.05 and 37.45 ppm at 24, 48 and 72 hours after treatment, respectively. On the other hand, the LC50 values were 990.34, 301.35 and 95.08 ppm after 24, 48 and 72 HAT, respectively as per indirect method. A dose-dependent relation with the mortality was observed by both methods. Spinosad was also significantly effective in reduc...

International Journal of Applied Sciences and Biotechnology, 2016

Comparative field efficacy of different control measures of okra shoot and fruit borer, Earias vi... more Comparative field efficacy of different control measures of okra shoot and fruit borer, Earias vittella were evaluated in the Entomology Field Laboratory, Bangladesh Agricultural University during February to May, 2014. Field efficacy of two selected chemical insecticides (Decis 2.5EC, Agritaf 50SP), three botanicals (Neem oil, Pitraj oil and Mahogany oil), one parasitoid (Trichogramma chilonis), Light trap along with Hand picking and Trap crop (Maize) were evaluated by analyzing percent shoot and fruit infestations. BARI-1 (okra variety) was used as a test crop in the experiment. Among the tactics, the minimum shoot (4.72%) and fruit infestations (6.77%) were observed in the plots treated with Decis 2.5EC followed by Neem oil treated plots (4.83% in shoot and 7.56% in fruit). The highest reduction of percent shoot infestation (79.89%) and fruit infestation (64.97%) over untreated control plots was found in the Decis 2.5EC sprayed plots followed by Neem oil while the lowest percent reduction of shoot infestation (29.86%) and fruit infestation (29.43%) were recorded in case of Light trap + hand picking. Neem oil and Decis 2.5EC were found very effective in managing E. vittella up to 7 days after each spraying. Agritaf 50SP, Pitraj oil, Mahogany oil, T. chilonis and trap crop were also found effective over untreated control plots although were significantly lower than Decis 2.5EC and Neem oil. Therefore, application of Decis 2.5EC and Neem oil were mostly effective and Light trap + hand picking was the least effective measures in controlling E. vittella.

Research in Agriculture Livestock and Fisheries, 2016

Experiments were carried out in the field and in the laboratory of the Department of Entomology, ... more Experiments were carried out in the field and in the laboratory of the Department of Entomology, Bangladesh Agricultural University during the period from February to August, 2013. Three cucurbitaceous vegetables viz. bitter gourd, ridge gour d and snake gourd were used as test crops. Considering to percent leaf infestation and leaf area consumptions, red pumpkin beetle was found mostly harmful to snake gourd (22.62% and 8.84%, respectively) but least harmful to bitter gourd (3.00% and 1.25%, respectively). On the other hand, Epilachna beetle was found mostly damaging to bitter gourd (46.00% and 21.67% respectively) and least damaging to ridge gourd (11.20% and 5.00%, respectively). Similar to the field experiments, red pumpkin beetle consumed more leaf areas of snake gourd (up to 43.36%) and Epilachna beetle (both adult and grubs) consumed more leaf areas of bitter gourd (up to 91.46%) in the laboratory experiments. Bitter gourd (1.42%) and ridge gourd (0.78% to 41.27%) were least preferable to the red pumpkin beetle and Epilachna beetle, respectively. To cite this article: Rahman MM and MM Uddin, 2016. Comparative study on host preference and damage potentiality of Red pumpkin beetle, Aulacophora foveicollis and Epilachna beetles, Epilachna dodecastigma.

Progressive Agriculture, 2014

The research was carried out in the field and laboratory of the Department of Entomology, Banglad... more The research was carried out in the field and laboratory of the Department of Entomology, Bangladesh Agricultural University, Mymensingh during December, 2011 to October, 2012 on the effect of host and temperature on oviposition and food consumption of red pumpkin beetle (RPB), Aulacophora foveicollis (Lucas). Three cucurbitaceous vegetables viz. sweet gourd (BARI Misti Kumra-1, BARI Misti Kumra-2 and Local Misti Kumra), bitter gourd (BARI Karola-1, Taj Karola-88 and Local Karola) and bottle gourd (BARI Lau-3, BARI Lau -4 and Local Lau) were selected to conduct this research. Host plants had the clear role on the feeding of red pumpkin beetle. Due to feeding of A. foveicollis, the highest percentage of weight loss of leaf was recorded from sweet gourd among the selected cucurbits while Local Misti Kumra was found the most preferred host by beetle considering their feeding efficacy compared to other varieties. Results also showed that temperature had a profound effect on the oviposit...

Fundamental and Applied Agriculture, 2019

An experiment was conducted during the period of December 2014 to March, 2015 in the Entomology F... more An experiment was conducted during the period of December 2014 to March, 2015 in the Entomology Field Laboratory, Department of Entomology, Bangladesh Agricultural University on the management of tomato fruit borer, Helicoverpa armigera (Hübner) using different biorational insecticides on winter tomato variety BARI-2 in Bangladesh. Efficacy of seven different biorational insecticides viz. Neem oil, Mahogany oil, Karanja oil, Ambush 1.8 EC, Libsen 45 SC, Emamectin benzoate 5 SG and Beauveria bassiana were evaluated on the basis of percentage of fruit damage and percentage increase/decrease of yield. All the biorational insecticides were significantly effective in comparison to control treatment. Besides, among seven insecticides; Emamectin benzoate 5 SG provided the best result with the lowest cumulative mean percentage fruit infestation (20.95% and 17.24% based on number and weight, respectively). Percentage reduction of infested fruit was the highest (57.50 and 62.38%, by number and weight, respectively) in Emamectin treated plots. Similarly the highest percentage protection (58.99 and 63.06% by number and weight, respectively) of infested fruit was also found from the Emamectin benzoate treatment. But Libsen 45 SC revealed the highest efficacy on marketable fruit yield (20.23 t ha −1) compared to other treatments. So, Emamectin benzoate and Libsen both might be used to manage tomato fruit borer effectively.

The Scientific World Journal, 2014

An experiment was conducted in Field Laboratory, Department of Entomology at Bangladesh Agricultu... more An experiment was conducted in Field Laboratory, Department of Entomology at Bangladesh Agricultural University, Mymensingh, during 2013 to manage the mango hopper,Idioscopus clypealisL, using three chemical insecticides, Imidacloprid (0.3%), Endosulfan (0.5%), and Cypermethrin (0.4%), and natural Neem oil (3%) with three replications of each. All the treatments were significantly effective in managing mango hopper in comparison to the control. Imidacloprid showed the highest efficacy in percentage of reduction of hopper population (92.50 ± 9.02) at 72 hours after treatment in case of 2nd spray. It also showed the highest overall percentage of reduction (88.59 ± 8.64) of hopper population and less toxicity to natural enemies including green ant, spider, and lacewing of mango hopper. In case of biopesticide, azadirachtin based Neem oil was found effective against mango hopper as 48.35, 60.15, and 56.54% reduction after 24, 72, and 168 hours of spraying, respectively, which was compar...

Acta Horticulturae, 2004

The present study was conducted during October 2014 to June 2015 in the farm of Bangabandhu Sheik... more The present study was conducted during October 2014 to June 2015 in the farm of Bangabandhu Sheikh Mujibur Rahman Agricultural University (BSMRAU), Gazipur to find out the most effective management option (s) against brinjal shoot and fruit borer (BSFB) with 6 treatments namely, Beauveria bassiana, 1109 CFU @ g l-1 , Bioneem 0.3 EC (Azadirachtin) @ 1.5 ml l-1 , Tracer 45 SC (Spinosad) @ 0.4 ml l-1 , Vertimec 1.8 EC (Abamectin) @ 1.2 ml l-1 of water, Mechanical control (hand picking) with clean cultivation and untreated control. Results revealed that shoot infestation at pre-fruiting stage was the lowest in Bioneem 0.3 EC (4.34%) and at fruiting stage in Tracer 45 SC treated plot (7.75%) and the highest was in untreated control plot (17.94% at pre-fruiting stage and 39.46 at fruiting stage). The lowest fruit infestation by BSFB was obtained with Tracer 45 SC (8.16% n/n and 10.0% w/w) followed by B. bassiana, 1109 CFU (23.23% n/n and 18.27% w/w) and the highest infestation was observed under untreated control plot (48.59% n/n and 32.09% w/w). Percent reduction of infested fruit by number (83.21%) and weight (68.84%) over untreated control was higher in Tracer 45 SC treated plot resulting significantly higher marketable yield. Therefore, the significant highest marketable yield (34.39 t ha-1) was harvested in the plot treated with Tracer 45 SC followed by 22.78 t ha-1 with B. bassiana, 1109 CFU and 19.26 t ha-1 from Vertimec 1.8 EC treated plot. The highest benefit cost ratio of 3.05 was obtained from Tracer 45 SC followed by 2.93 in B. bassiana, 1109 CFU and 2.89 with Vertimec 1.8 EC sprayed plot.

Journal of Applied Botany and Food Quality, 2009

Glucosinolates (GS) are sulfur-rich secondary metabolites found in the Brassicaceae and other rel... more Glucosinolates (GS) are sulfur-rich secondary metabolites found in the Brassicaceae and other related families of the order Brassicales. GS consist of structurally-related compounds with different side chains. To explore the possibility that various side chain confer divergent biological activities to individual GS, we have investigated the performance of the specialist pest beetle, Phaedon cochleariae (F.) on Arabidopsis thaliana L. mutants and Columbia wild-type (WT) which differ in the main group of GS. Plant lines of A. thaliana altered for the expression of MAM3, because of the introduction of an overexpression construct of MAM3 (mam3 +) or containing double knockouts of CYP79B2 and CYP79B3 (cyp79B2-/cyp79B3-) were used for the study in comparison to the WT. A. thaliana genotypes differed in their GS profiles. The highest GS content was present in the WT followed by mam3 + and cyp79B2-/ cyp79B3-. A modified aliphatic GS content was detected for the mam3 + as compared to the WT lines. Furthermore, indolyl GS were completely absent in cyp79B2-/cyp79B3-. The percentage weight increase of larvae raised on each of the three plant genotypes was significant different. Larval performance was poorest on plants of cyp79B2-/cyp79B3and best on WT, but there was no significant difference found in percentage weight increase on mam3 + and WT. There was no correlation between the weight increase of the larvae on genotypes and induced levels of aliphatic, indolyl, and total GS. However, the poor performance of beetle larvae on cyp79B2-/ cyp79B3compared to WT and mam3 + might be explained by comparable high aliphatic GS levels of this mutant, a different induction of secondary metabolites, and the absence of indolyl GS. Basic knowledge about the relationship of GS structures and their insect pests may help in further resistance breeding of crucifer crops.

Experiments were carried out to investigate the host preference of cucurbit fruit fly, Bactrocera... more Experiments were carried out to investigate the host preference of cucurbit fruit fly, Bactrocera cucurbitae and its management to cucurbitaceous vegetables namely, bitter gourd, ridge gourd and snake gourd. Among the vegetables, bitter gourd was found as mostly preferable (upto 40.69% fruit infestation) and snake gourd was found as the least preferable (18.64% fruit infestation). Among management tactics (fruit bagging, neem oil, mahogany oil, alamonda leaf extract, pheromone trap and cider vinegar traps), bagging reduced maximum fruit infestation (upto 75.51%) compared to controlled plots. Among the botanicals, neem oil was mostly effective (21.64% reduction of fruit infestations) followed by alamonda leaf extract and mahogany oil. Both traps were found effective and more insect were trapped in the pheromone trap.

The pulse beetle, Callosobruchus chinensis is one of the major pests in stored pulse causes 40-50... more The pulse beetle, Callosobruchus chinensis is one of the major pests in stored pulse causes 40-50% losses of pulses in storage. Experiments were conducted to study the efficacy of some selected biorational insecticides on percent mortality of beetle, percent weight loss of seeds, no. of eggs laid per female, percent hatchability, larval duration, pupal period and adult longevity of pulse beetle, Callosobruchus chinensis under laboratory condition. Among the different botanicals, neem oil (77%) was found the most effective showing 78% mortality of pulse beetle in direct method followed by Mahogany oil (69%) and karanja oil (62%). In case of indirect method, the highest percent mortality was recorded from karanja oil (37%) which was followed by Neem oil (33%) and Mahogany oil (33%). Among different microbial derivatives, Libsen was found most effective considering mortality followed by Suspend 5SG and Ambush 1.8EC. The highest percentage of weight reduction was observed in Karanja oil...

Research in Agriculture Livestock and Fisheries, 2016

Experiments were conducted to study the feeding, growth and chemical control of hog-plum beetle (... more Experiments were conducted to study the feeding, growth and chemical control of hog-plum beetle (Podontia 14-punctata) in the laboratory and in the field. It was found that larval leaf consumption gradually increased with the increase of age of larva. Mean leaf consumption per larva was 0.28g, 0.86g and 1.70g after 24, 72 and 144 hrs, respectively. Growth pattern of larva was depended on the rate of leaf consumption. The average body weight of larvae was increased with time and per larva was recorded as 0.06g, 0.19g and 0.45g after 24, 72 and 144 hrs of leaf consumption. Daily leaf consumption was higher in adults than larvae. Mean leaf consumption per adult was 0.24g, 0.91g and 1.87g after 24, 72 and 144 hrs, respectively. Mortality of larvae and adults against four chemical insecticides viz. Altima 40WG, Belt 24WG, Libsen 45SC and Limper 10EC were observed both in the laboratory and field. All the treatments had a significant effect on mortality percentage of larva and adult in comparison to control. The highest mortality percentage of the larva (86.67) and adult (80.00) were observed in the case of Limper 10EC at 72 hrs after spraying. However, there was no significant difference observed in efficacy among Limper 10EC, Belt 24WG and Libsen 45SC. In field, percentage of leaf protection over control after 1 st spray was the highest (37.95) in Limper 10EC and the lowest (20.86) in Altima 40WG treated plants. The results of laboratory and field trials revealed that Limper 10EC might be recommended for effective control of P. 14-punctata.

Agronomy for Sustainable Development

Eggplant shoot and fruit borer, Leucinodes orbonalis, is a major pest in eggplant production in S... more Eggplant shoot and fruit borer, Leucinodes orbonalis, is a major pest in eggplant production in South and South-East Asia. Farmers frequently spray insecticides to control it. Integrated pest management (IPM) based on mass trapping or pheromone trapping and sanitation (removal of infested shoots and fruits) has been suggested but poorly adopted. This study tested, together with farmers, combinations of IPM components that fit their farming practices, increase income, and preserve natural enemy populations. A 2-year participatory study was negotiated with these farmers, comparing (i) an untreated control, (ii) farmers’ conventional weekly spraying, with pheromone trapping either (iii) alone, or combined with (iv) trap-based biorational spraying, or (v) bi-weekly conventional insecticide spraying. Farmers rejected testing sanitation as too labor-intensive. In both years, pheromone trapping alone or combined with biorational spraying reduced fruit infestation, increased yield and incom...

Introduction of exotic plant species in the tropics has occurred since the colonial period, and h... more Introduction of exotic plant species in the tropics has occurred since the colonial period, and has mostly been for timber production. However, due to uncontrolled distribution and lack of awareness, many of these species became invasive, and have been increasingly reported as a source of threats to native ecosystems. We investigated the exotic species richness, their traits, and biogeographic origin in the Satchari Forest in the northeastern region of Bangladesh, one of the very few intact terrestrial ecosystems remaining in the country. Boosted Regression Trees and Detrended Correspondence Analysis were performed to determine the contribution of various environmental attributes, protection regimes, and disturbances to explain the distribution of exotic species within Satchari Forest. Among the environmental variables, native species richness, elevation gradient, and soil nutrient parameters were found as good predictors of both exotic species' presence and richness in the area. In our analysis, number of exotic species showed a unimodal relationship with native species in the reserved forest, where the relationship was negative in the surrounding area. An increase in exotic species with the presence of higher anthropogenic disturbance events, thereby with lower conservation restrictions as well as with lower protection status, was also evident. Our study suggests that enforcing greater protection status and preventing human use can be the best ways to protect native species composition in forest ecosystems with greater conservation values in tropical developing countries.

Journal of the Bangladesh Agricultural University

Brinjal is susceptible to attack of various insect pests from seedling to fruiting stage. Among t... more Brinjal is susceptible to attack of various insect pests from seedling to fruiting stage. Among these, brinjal shoot and fruit borer, Leucinodes orbonalis (Guen.) is the most destructive pest and is considered to be the limiting factor in quantitative as well asqualitative harvest of brinjal fruits. In the present study, efficacy of some new insecticides viz. Pine 6 WG (Emamectin benzoate + Abamectin), Heron 5 EC (Lufenuron), Belt 24 WG (Flubendiamide) and Cyclone 2.5 EC (Lambda-cyhalothrin) were evaluated against brinjal shoot and fruit borer (BSFB) in field condition from the period of October, 2015 to April, 2016. The experiment was laid out in a Randomized Complete Block Design (RCBD) having three replications and two concentrations of each of the insecticides. A total of three spraying was given and finally a cumulative mean was found out. Data were collected on percent shoot infestation, percent fruit infestation, marketable fruit yield (t/ha) and abundances of natural enemies...

Bangladesh Journal of Plant Taxonomy, 2013

Teknaf Wildlife Sanctuary has been explored to assess angioperm diversity using traditional taxon... more Teknaf Wildlife Sanctuary has been explored to assess angioperm diversity using traditional taxonomic techniques during 2010 to 2011. The assessment has resulted inrecording of total 535 angioperm species under 103 familiies and 370 genera. For each species scientific name, Bangla name (whenever available), family and habit are provided. Of 535 species, 178 represented by herbs, 110 by shrubs, 150 by trees, 87 by climbers and 10 by epiphytes. In Magnoliopsida (dicots), Fabaceae is the largest family represented by 38 species, while in Liliopsida (monocots), Poaceae is the largest family represented by 29 species.DOI: http://dx.doi.org/10.3329/bjpt.v20i2.17389Bangladesh J. Plant Taxon. 20(2): 145-162, 2013

The research was carried out in the field and laboratory of the Department of Entomology, Banglad... more The research was carried out in the field and laboratory of the Department of Entomology, Bangladesh Agricultural University, Mymensingh during December, 2011 to October, 2012 on the effect of host and temperature on oviposition and food consumption of red pumpkin beetle (RPB), Aulacophora foveicollis (Lucas). Three cucurbitaceous vegetables viz. sweet gourd (BARI Misti Kumra-1, BARI Misti Kumra-2 and Local Misti Kumra), bitter gourd (BARI Karola-1, Taj Karola-88 and Local Karola) and bottle gourd (BARI Lau-3, BARI Lau-4 and Local Lau) were selected to conduct this research. Host plants had the clear role on the feeding of red pumpkin beetle. Due to feeding of A. foveicollis, the highest percentage of weight loss of leaf was recorded from sweet gourd among the selected cucurbits while Local Misti Kumra was found the most preferred host by beetle considering their feeding efficacy compared to other varieties. Results also showed that temperature had a profound effect on the oviposition and food consumption by A. foveicollis while 30 o C was the optimum temperature both for oviposition and food consumption for all selected cucurbits and their varieties.