Evaluation of different pest management modules against major insect pests and diseases of turmeric (original) (raw)
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International Journal of Current Microbiology and Applied Sciences, 2018
An experiment was conducted for two consecutive years during rabi season of 2014-15 and 2015-16 to manage the onion thrips using three treatment modules viz., M1-IPM module, M2-Farmers' practice and M3-Untreated control. It has been observed that the IPM module was the best in achieving the maximum leaf growth and bulb yield in both the years (2014-15 and 2015-16) followed by farmers' practice module. Adoption of IPM module (comprised of wheat and maize as barrier crops, seed treatment with imidacloprid 70WS and spraying of Beauveria bassiana 10 SC and spinosad 45SC at ETL) kept the plant less infested by the T. tabaci. An avoidable yield loss of onion bulb due to infestation of T. tabaci was estimated as 18.98%. The incremental benefit cost ratio (IBCR) was found more in IPM module than the farmers' practice module. The maximum return per rupee investment for managing thrips in rabi onion was observed with IPM module being, Rs. 6.65.
Development of Management Approach against Thrips-Mite Complex of Chilli
International Journal of Scientific Research in Agricultural Sciences, 2016
The field experiment was conducted at Spices Research Centre, Shibganj, Bogra, Bangladesh during Rabi season of 2014-15 to develop an integrated management approach against thrips-mite complex of chilli. The treatments were five including control. Spraying of Chlorphenapyr (Intrepid 10SC) @ 1ml/litre of water + White sticky trap @ 40 traps/ha resulted the lowest thrips (0.86 thrips/leaf) and mite (0.97 mite/leaf) population with highest marginal benefit cost ratio (33.02). The highest percentage of thrips (87.02%) and mite (87.32%) population reduction over control with maximum red ripe chilli yield (12.72 t/ha) was also obtained from Chlorphenapyr + White sticky trap. Thrips and mite populations are negatively correlated with Chlorophyll Concentration Index of leaf. However, the lowest percentage of upward (19.05%) and dounward leaf curl (21.08%) was also obtained from Chlorphenapyr + White sticky trap treated plot followed by White sticky trap + Abamectin + Success (22.75% and 25.15%, respectively) while the highest percentage of upward (71.25%) and dounward leaf curl (82.38%) was obtained from untreated control. So, installation of sticky white trap along with spraying of Chlorphenapyr may be recommended for effective management of thrips-mite complex in chilli.
A Field experiment on the management of cowpea flower thirps was laid out in Randomized Complete Block Design in Chitrawan, Chitwan during February to May, 2015 which included three replications and eight treatments. The treatments and their use were (і) Margosom 5 ml/liter of water, (іі) Derisom 2ml/liter of water, (ііі) Anosom 3 ml/liter of water, (іv) Sweetflag rhizome extract (2.5% w/v) (v) Chinaberry leaf extract (20% w/v), (vі) Nitenpyram 0.75 ml/lit of water (vіі) Spinosad 0.6 ml/lit of water and (viii)Untreated control. Spinosad and Nitenpyram were statically at par and superior to other treatments to manage thrips population followed by Derrisom. So, number of pod produced and productivity are statically superior in Spinosad (322.7, 19.72 Mt/ha) and Nitenpyram (267.3, 18.72 Mt/ha) sprayed plot followed Derrisom (273.7, 17.08 Mt/ha). Derrisom being bio-pesticide can be best alternative to other chemical pesticides to manage thirps.
EVALUATION OF TURMERIC GERMPLAMS FOR TOLERANCE TO FOLIAR DISEASES IN TERAI REGION OF WEST BENGAL
Leaf spot and leaf blotch of turmeric is an important phytopathological constraint in cultivation in the turmeric growing areas of India. Among the different genotypes CL 32, CL 34, CL 52, CL 54 (from Coimbatore), RH 406, RH 407, RH 410 (from Dholi), TCP 14, TCP 129, TCP 161 (from Pundibari) and TCP 2 (Local check) it was found that TCP 129 recorded lowest leaf blotch (PDI 12.78) and leaf spot (PDI 7.26) disease severity. The highest leaf blotch disease severity (PDI 31.48) was recorded by RH 406 closely followed by RH 407 (PDI 31.16) whereas the highest leaf spot disease severity (PDI 36.38) was recorded by RH 410. TCP 129 produced 46.48% and 70.03% less leaf blotch and leaf spot disease over local check respectively. Over all 4 germplasms were found to produce lower leaf blotch disease severity and 6 germplasms produced lower leaf spot disease severity than local check variety (TCP 2). The highest yield of 14.34Kg/plot (projected yield 28.91t/ha) was obtained by TCP 129 which was also found to have lowest leaf blotch and leaf spot severity. The lowest yield of 7.83 Kg/plot (projected yield 15.79 t/ha) was recorded by RH 410. TCP 129 is therefore highly recommended for the farmers which will produce very high yield in the terai region of West Bengal.
This research aims to know the effect of mulching, sanitation and yellow fluorescent sticky trap application on population fluctuation and critical attack period of thrip on mangosteen which was carried out in a farmer mangosteen orchard in Lima Puluh Kota district, West Sumatra, Indonesia from October 2007 to February 2008. Twenty of plants were used as sampling units. Four plants were used to elucidate the critical period of mangosteen thrip attack that was assessed based on parameter of scar intensity, and sixteen plants were used to study the effects of mulching, sanitation and yellow fluorescent sticky trap on population fluctuation of mangosteen thrips. Each treatment was replicated four times. A completely randomized design was applied and continued with Lowest Significant Different to identity the differences among the treatments. The result showed that critical period of mangosteen thrip was at the 3rd - 10th weeks after fell of calyx. Sanitation combined with application o...
Ecofriendly Management of PLANT DISEASES
Plant Protection is an integral part of crop protection. Modern agriculture is highly input intensive and greatly dependent on fertilizers and pesticides. If the input-oriented agriculture has helped to achieve the green revolution, it has created the problem of sustainability of the production system due to abuse i.e. excessive and indiscriminate use of the chemical inputs. Hence, in achieving second green revolution it is necessary to look into alternative management strategies which are environment friendly but long term sustainable. Thus, this book is timely thought and themes are well projected.
Journal of entomology and zoology studies, 2017
Bio-efficacy of four different insecticides (namely acephate, imidacloprid, cypermethrin, dimethoate) and three botanicals [namely Allium sativum extract, Allium cepa extract and NSKE] were investigated against chilli thrips. Among insecticides, imidacloprid 17.8 SL reduced maximum thrips population (82.46%) followed by acephate 75 SP (80.86%). Among botanicals, NSKE 5% caused maximum mortality of 64.50%, while garlic and onion extract showed comparatively less performance with 55.98% and 51.53% respectively. Among all treatments, the highest percent increase in yield over control was obtained from plots treated with imidacloprid 17.8 SL (45.42%) followed by cypermethrin 12.5 EC (38.15%). Amongst botanicals, greater percent increase in the yield was recorded by application of A. sativum extract (34.46%), followed by A. cepa extract (22.33%). The C: B ratio for all treatments was analyzed and found to be highest in case of imidacloprid 17.8 SL (1:16.66) whereas the lowest in case of ...
Integrated Pest Management Strategies for Sustainable Agriculture, 2021
Integrated Pest Management (IPM) system is the best effective sustainable approach of protecting crops from the ravages of pests towards the goal of food sufficiency for the ever-increasing human population of the globe. IPM helps minimize reliance on chemical pesticides leading to elimination of several pesticide associated problems like environmental pollution, killing of non target organisms, residue problem, health hazards, development of resistant population of pest species, resurgence of pests, secondary pest outbreak and so on. Sustainability in crop production and protection can only be achieved by developing technologies that are based on locally available, easily acceptable and cost effective inputs. Therefore, development of new knowledge systems with emphasis on eco-friendly approaches and new IPM strategies are necessary to tackle the intensified pest-disease problems in the present time of climate change. The book contains twenty eight articles covering various aspects of crop protection. The topics cover fundamental as well as advanced and modern aspects of pest management. Here, an attempt has been taken to present some recent findings with review work in a manner considered suitable for the scientific community. We are thankful to the contributors for writing authoritative and informative articles for this volume. The opinions and text contained herein are those of the authors and we have tried to honour their ideas in the original shape. While dealing with such a voluminous work, errors are likely to occur despite best efforts. However, the onus of the technical contents rests with the contributors. This effort will definitely serve as an excellent reference material and also as a guide for research communities and students in the field of Agricultural science. We would very much appreciate receiving suggestions from readers so that shortcomings, if any, can be corrected in future editions. We are thankful to all the faculty members and especially to Dr. T.K. Maity, Principal, College of Agriculture, Tripura for their constant support and courage during this effort. We also highly appreciate the all-round cooperation and support of Sri Dipanjan Mukherjee, founder member of New Delhi Publishers for presenting and publishing this work with patience, care and interest.
The compatibility of bio-control agents Trichoderma viridae and Pseudomonas fluorescens was assessed with commonly used chemical insecticides in turmeric viz., thiamethoxam 25% WG (Cruiser), chloropyrifos 20% EC (Dursban), dimethoate 30% EC (Rogor), malathion 50% EC (Malathion) and phosphamidon 40% SL (Demecron) each at three (0.05%, 0.1% and 0.2%) different concentrations. The compatibility tests revealed that the response of the Trichoderma viridae isolate to different insecticides differed significantly. Cent per cent inhibition was noticed at all three concentrations of phosphamidon (40%) (Demecron). The lowest inhibition on growth of antagonist was noticed with dimethoate (30% EC) (Rogar) at 0.05 per cent concentration (19.75%) followed by thiamethoxam (25%) (Cruiser) at 0.1% recorded lowest inhibition of 21.36 per cent which were statistically on par with each other on the growth of the bio-agent where as in others the reduction in growth was in range of 24.70 to 84.44 per cent over control. The response of isolate Pseudomonas fluorescens to different insecticides at three concentrations varied significantly. The data revealed that the antagonist was found compatible with thiamethoxam (25%) (Cruiser) and phosphamidon (40%) (Demecron) at all the three concentrations with zero per cent inhibition. The other insecticides like chlorpyriphos (20%) (Dursban), dimethoate (30%) (Rogar) and malathion (50%) at all three concentrations showed the inhibition on the growth of antagonist in the range of 7.77 and 24.44 per cent. Moreover, the pesticide tolerance ability broadened the use as these bio-pesticides in conjugation with pesticides can be applied under integrated disease management for the management of soil borne plant pathogens.