Efficacy of bio-insecticides and botanicals against brinjal shoot and fruit borer (Leucinodes orbonalis Guenee) (original) (raw)
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The study was conducted at the Department of Entomology, Sher-e-Bangla Agricultural University, Dhaka, Bangladesh during November, 2012 to May, 2013 to eco-friendly management of brinjal shoot and fruit borer (BSFB), Leucinodes orbonalis Guenee using some selected botanicals and chemical insecticides. Eight treatments were applied started with 28 days after transplanting of seedlings and repeated at 7 days interval and continued upto last harvest of the fruits. The treatments were T1= spraying of neem oil @ 3ml/litre of water, T2= spraying of neem seed kernelextract @ 100g/litre of water, T3=spraying of neem leaf extract @ 200g/litre of water, T4=spraying of garlic extract @ 2g/L of water, T5=spraying of Ripcord 10 EC @ 1ml/litre of water, T6=spraying of Suntap 50 SP @ 2ml/litre of water, T7=hand picking and destruction of infested shoots and fruits and T8=untreated control. Results found that the lowest shoot infestation (6.80%), lowest fruit infestation by number (13.67%) and weight (11.50%), maximum fruit yield (23.95 t/ha) were achieved by Ripcord 10EC @ 1ml/L of water (T5) compared to all other treatments. The highest percent reduction of shoot infestation (72.96%), the highest percent reduction of fruit infestation by number and weight (72.58% and 69.70% respectively), percent increase of yield (147.85%) over control were also achieved by Ripcord 10EC (Cypermethin 10 EC) @ 1ml/L of water. Thus it is revealed that among the treatments T5(Ripcord 10EC @ 1ml/L of water showed the best performance for controlling brinjal shoot and fruit borer followed bySuntap 50 SP (Cartap 50 SP) and Neem oil. Among botanical based treatments, neem oil performed as the best treatment in reducing the highest infestation (48.21% for shoot and 49.21% for fruit) caused by brinjal shoot and fruit borer.
An experiment was undertaken to know the effectiveness of different biorational insecticides for controlling brinjal shoot and fruit borer (Leucinodes orbonalis Guenee) under field conditions during winter season 2017-18. The different treatments were Bioneem 1% EC (Azadirachtin 1000 ppm @ 1 mL L −1 (T1) Noclaim 5 SG (Emamectin benzoate) @ 1 mL L −1 (T2), Tracer 45 SC (Spinosad) @ 0.4 mL L −1 (T3), Suntec 1.8 EC (Abamectin) @ 1.2 mL L −1 (T4) and untreated control (T5). The results revealed that the treatments Spinosad (T3), Abamectin (T4) and Emamectin benzoate (T2) were effective to suppress brinjal shoot and fruit borer infestation in brinjal field. The rate of shoot infestation was observed 6.25% and 26.01% in Spinosad (T3) treated and control plot, respectively. The lowest fruit infestation (6.98%) by number and (9.32%) by weight was recorded in Spinosad (T3) treated plot. Reduction rate of fruit infestation over control was 82.82, 51.19, 41.15 and 38.17% by number and 66.11, 43.75, 33.13 and 24.44% by weight in Spinosad (T3), Emamectin benzoate (T2), Abamectin (T4) and Azadirachtin (T1), treated plot, respectively. The yield in different treatments ranged between 22.02 and 32.52 t ha −1 . Healthy fruits yield increase over control varied from 19.36 to 85.46%, where the highest increase was found in Spinosad (T3) treated plot and the lowest in Azadirachtin (T1). The highest adjusted net return and benefit-cost ratio (BCR) of Tk. 2,61,564 and 11.08, respectively were obtained from Spinosad (T3) treated plot. The lowest BCR was 2.66 in Azadirachtin (T1) treated plot. Among the four bio-rational inecticides Tracer 45 SC (Spinosad) showed the highest efficacy and it could be used against brinjal shoot and fruit borer in brinjal production.
Bio-pesticidal management of brinjal shoot and fruit borer, Leucinodes orbonalis (Guen.)
2018
Field investigation was conducted to evaluate the efficacy of some biopesticides against shoot and fruit borer (Leucinodes orbonalis Guen.) on brinjal during Rabi season in 2015-2016. Among the treatments, Azadirachtin 1% EC @ 2ml/L was found superior than other treatments with 10.92% mean shoot infestation and 10.04% mean fruit infestation, respectively followed by Karanjin 2% EC @ 2ml/L (13.42% shoot and 12.83% fruit infestation). Azadirachtin 1% EC @ 2ml/L also registered as highest marketable fruit yield (38.75 q/ha). It can be concluded that Azadirachtin could be proved effective in the management of brinjal shoot and fruit borer under organic farming and IPM programmes.
Management of Brinjal Shoot and Fruit Borer, Leucinodes orbonalis Guenee, with Selected Insecticides
Brinjal shoot and fruit borer (BSFB), Leucinodes orbonalis Guenee is a serious insect pest of brinjal (Solanum melongena L.) in all brinjal growing countries. It is the most important pest in Asia, including Pakistan. Different insecticides were evaluated for the control of BSFB in a field study at Sahiwal, Pakistan during spring and fall sowing seasons. The study was carried out using Nirala variety of brinjal. Transplanting of nursery was done in the field on March 11 and August 15, 2012 for spring and fall seasons crop, respectively. The experiment was laid out in a Randomized Complete Block Design having four replications. Each plot had four rows at 50.0 cm spacing and plant to plant spacing was 30.0 cm. Insecticides used were spinosad (Tracer 240SC), flubendiamide (Belt 48 SC), emamectin benzoate (Timer 1.9EC), bifenthrin (Talstar 10EC), spinetoram (Delegate 25WG) and chlorantraneiliprole (Coragen 20SC). Insecticides were sprayed on April 2, 17 and May 2 for spring sown crop and on September 3, 18 and October 4 for fall sown crop. All infested fruits were picked from plots one day before insecticide application. Infected shoots were marked by tying a ribbon to all drooping shoots one day before spray. Fruit and shoot infestations were recorded seven and 14 days after insecticide application from plants in the middle two rows of each plot. All treatments reduced shoot and fruit infestation significantly as compared to the control. However, flubendiamide (Belt 48SC) and emamectin benzoate (Timer 1.9EC) treated plots had the least shoot infestation. For control of the borer in fruits, spinosad (Tracer 240SC) proved to be the most effective insecticide.
An attempt was made to evaluate the efficacy of novel insecticides against brinjal fruit borer, Leucinodes orbonalis at Student Instructional Farm of C.S.A.U.A&T., Kanpur, during Rabi season 2015-16 on var. Type-3. Among the various treatments like imidacloprid 17.8 SL @ 1.0 ml/lit., indoxacarb 14.5 SC @1.0 ml/lit., profenofos 50 EC @ 2.0 ml/lit., spinosad 45 SC @ 0.4 ml/lit., thiamethoxam 25 WG @ 0.1 gm/lit., acephate 75 SP @ 0.7 gm/lit. and untreated control, among them imidacloprid 17.8 SL was found most effective in reducing the mean shoot infestation and fruit infestation followed by indoxacarb 14.5 SC, profenofos 50 EC, spinosad 45 SC, thiamethoxam 25% WG and acephate 75 SP.
Journal of entomology and zoology studies, 2020
The studied data of shoot and fruit borer shows that, results were statistically superior over control in suppression of shoot damage caused by shoot borer. Lowest shoot infestation was recorded in treatment spinosad 0.01% (12.13%). The other effective treatments in minimizing the percentage damage of shoot borer were listed in descending order as emamectin benzoate 0.002% (15.05%) > cypermethrin 0.005% (17.19%) > imidacloprid 0.025% (21.95%) I > Metarrhizium anisopliae 1 lit/ha (23.16%) > B. Bassiana 1 lit/ha (24.88%) > Azadirachtin 2.5 ml ml/lit (24.88%) > mechanical shoot clipping (27.10%) respectively, these treatments were found superior over control (water spray) recording highest shoot infestation (36.60%) and for the fruit borer The next effective treatments in minimizing the percentage of fruit borer are listed in descending order as emamectin benzoate 0.002% (16.57%) > cypermethrin 0.005% (18.70%) > imidacloprid 0.025% (22.06%) > Metarrhizium ani...
EFFICACY OF SOME BOTANICALS IN CONTROLLING BRINJAL SHOOT AND FRUIT BORER, Leucinodes orbonalis
Efficacy of some botanicals viz., neem oil, karanja oil and mahogoni oil at different concentrations was determined against brinjal shoot and fruit borer (BSFB). Three botanical oils were evaluated by assessing larval mortality in laboratory. Neem oil at 4% concentration showed lowest larval survivability (26.67%) while mahogoni oil caused highest survivability (68.89%) at 2% concentration. The effect of botanical oils on larval survivability decreased proportionally with the increase of concentrations. Considering the efficacy of all concentrations the order of toxicity was neem oil>karanja oil>mahogoni oil. The effectiveness of the botanicals viz., neem oil (4%), karanja oil (4%), mahogoni oil (4%), neem cake (250 kg/ha), neem oil + neem cake (4% + 250 kg/ha) were evaluated by application at 15 days interval against BSFB in the field. The highest percentage of reduction (70.44% infested shoots/plant) of BSFB was found in neem oil + neem cake. Minimum reduction of shoot infestation by BSFB was observed in neem cake treated plot. Similiar efficacy was found in case of reduction percentage of fruit infestation by BSFB.
Indian Journal of Entomology
Seven organic products and an insecticide- emamectin benzoate 5SG (0.002%) were evaluated against the brinjal shoot and fruit borer Leucinodes orbonalis (Guenee) at the research farm, Palampur. The results among the organic products, Agniastra (5%), Brahmastra (5%) and cow urine (10%) were effective. Emamectin benzoate was superior to the organic products giving maximum yield of fruits and marketable fruits (43.97 and 42.57 q/ ha, respectively).
International Journal of Bio-resource and Stress Management, 2016
The field experiments were conducted at ICAR Research Complex for North Eastern Hill Region, Umiam, Meghalaya, India during 2011-2012 to evaluate some biopesticides and newly introduced insecticides against shoot and fruit borer of brinjal. The experiments were laid out in Randomized Block Design (RBD) with three replications. The treatments viz., azadirachtin 1 EC (2 ml l-1), karanjin 2 EC (2 ml l-1), anonin 1 EC (2 ml l-1), Bacillus thuringiensis (Bt.) (2 g l-1), emamectin benzoate 5 SG (0.4 ml l-1), flubendiamide 480 SC (0.3 ml l-1), chlorantraniliprole 18.5 SC (0.4 ml l-1), chlorpyriphos 20 EC (2 ml l-1) were applied thrice at fifteen days interval starting from initiation of shoot and fruit borer infestation. Results showed that chlorantraniliprole (2.46%) was the best treatment in reducing the shoot infestation (81.88% reduction) which was statistically at par with flubendiamide (3.08%) and emamectin benzoate (3.76%) with 77.37% and 71.95% reduction over untreated control, respectively. The overall mean fruit infestation were also minimum in chlorantraniliprole (5.76%) and flubendiamide (5.93%) treated plots with 79.45% and 78.84% reduction over untreated control plots (28.03%), respectively. Pooled data of two years experimental results indicated that highest marketable yield was recorded in chlorantraniliprole treated plots (155.01 q ha-1) followed by flubendiamide (149.50 q ha-1), emamectin benzoate (134.24 q ha-1) and chlorpyriphos (125.43 q ha-1). Among bio-pesticides, highest mean marketable yield was recorded in Bacillus thuringiensis treated plots (114.45 q ha-1) followed by azadirachtin (101.11 q ha-1).