Bioefficacy of some bio-pesticides against major pests of chilli (original) (raw)
Related papers
2019
Bioefficacy of some new insecticides and acaricides against different insect and non-insect pests of chilli were carried out in the present study during 2016 at District Seed Farm (AB Block) of Bidhan Chandra Krishi Viswavidyalaya located at Kalyani, Nadia, West Bengal. Highest reduction of jassid population was noticed from the treatments Imidacloprid 17.8% SL @ 50 a.i. g/ha and The lowest percent reduction was observed in the plots treated with Chlorpyriphos 20% EC @ 200 a.i. g/ha @ 200 a.i. g/ha followed by Fipronil 5% SC @ 50 a.i. g/ha. Maximum reduction of aphid (88.58%) was recorded from Imidacloprid 17.8% SL @ 50 g a.i./ha and Chlorpyriphos 20% EC @ 200 a.i. g/ha and fipronil 5% SC @ 50 a.i. g/ha are comparatively less effective against aphid recorded 66.49% and 67.44% reduction respectively at one day after spraying. Highest reduction of thrips was noticed from the treatments Imidacloprid 17.8% SL @ 50 a.i. g/ha and the lowest percent reduction was observed in the plots trea...
Bio-efficacy of insecticides against aphids infesting chilli
International Journal of Chemical Studies, 2018
The field experiment was carried out to evaluate of bio-efficacy of insecticides against aphids infesting chilli during rabi season of 2016-17 at Central Experimental Station, Wakawali, Dist- Ratnagiri. During this experiment total seven insecticides tested viz., acetamiprid 20 SP @ 0.004, dimethoate 30 EC @ 0.6, emamectin benzoate 5 SG @ 0.002, imidacloprid 17.8 SL @ 0.004, lambda cyhalothrin 5 EC @ 0.018, spinosad 45 SC @ 0.014 and thiamethoxam 25 WG @ 0.01 percent, respectively. The results regarding overall mean of three sprays against aphids revealed that treatment thiamethoxam 25 WG @ 0.01 percent recorded (5.03) and was at par with treatment imidacloprid 17.8 SL @ 0.004 percent (5.32). All the above treatments were found superior to untreated control.
Biointensive approaches for the management of chilli pest complex
2018
Pesticides are playing a prominent role in the pest management aspect in both agriculture and horticulture crops. But usage of the pesticides is posing severe ecological consequences. Alternative approach consisting of ecofriendly components are safe and is most preferable. In this view, an investigation was carried out on evaluation of different IPM modules against pest complex of chilli and it revealed that, MI comprised of seedling treatment with raw cow milk (15%) in combination with Trichoderma (4g),incorporation of Vermicompost at 2.5t/ha and Neem cake at 2.5q/ha during transplanting, two rows of marigold barrier crop and marigold trap crop (1:16),scheduled spray of Garlic Chilli Kerosene at 5 WAT, Azadirachtin 10000 ppm (1 ml/l) + Lecanicillium lecanii (2X10 cfu/ml) at 5 g/l at 9 WAT, Chlorfenapyr 10 EC @ 2 ml/l was most effective by maintaining minimum pest incidence and maximum yield i.e. 32 q/ha.
Field efficacy of different insecticides against aphids (Aphis gossypii Glover) in chilli.
Pynhunlin Nola kharkrang dohling, 2020
Field studies were carried out during Rabi season of 2016-17 and 2017-18 at the Central Horticultural Research Station, Odisha University of Agriculture and Technology, Bhubaneswar in randomized block design with six insecticidal treatments which were replicated four times and tested against aphids in chilli variety “Utkal Ava”. Among them, sequential spraying of acephate 75 SP @ 1.5 g/l + neem oil @ 2.0 ml/l, fipronil 5 SC @ 1.0 ml/l + neem oil @ 2.0 ml/l, imidacloprid 70 WG @ 2 g/15 l + neem oil @ 2.0 ml/l and cyazypyr 10.26 OD @ 1.8ml/l proved to be superior than other treatments in effective management of aphids infesting chilli. Further, cyazypyr 10.26 OD @ 1.8 ml/l was found to be the least effective treatment against this pest.
Evaluation of new molecules for the management of chilli pest complex (Cv. Byadgi Dabbi)
Journal of entomology and zoology studies, 2018
Field experiments were conducted to evaluate the efficacy of novel insecticides against thrips (Scirtothrips dorsalis Hood) and mites (Polyphagotarsonemus latus Banks) on chilli (Cv. Byadgi dabbi) during November, 2016 at HREC, Haveri. Among all the chemicals, thiamethoxam 25 WG at 0.20 g a.i. ha-1 was found superior with a lowest mean thrips population, Leaf Curl Index (LCI) and highest dry chilli yield, per cent reduction over control and per cent increase in yield over control of 0.81, 0.7 and 9.55, 80.00 and 43.45 per cent, respectively followed by cyantraniliprole 10 OD @ 1.00 g a.i. ha-1. The highest net profit was obtained from the treatment thiamethoxam 25 WG at 0.20 g a.i. ha-1 (Rs. 97660) with benefit cost ratio (1: 3.71). Likewise, diafenthiuron 50 WP 1.0 g a.i. ha-1 and Spiromesifen 24 SC @ 1.0 ml/l found significantly superior against mites incidence. Diafenthiuron 50 WP 1.0 g a.i. ha-1 recorded least mean mite population (3.07 mite/plant). Spiromesifen 24 SC @ 1.0 ml/l...
Efficacy of Some Insecticides Against Thrips and Yellow Mites in Chilli
Indian Journal of Entomology
Efficacy of some insecticides new chemistry insecticides was evaluated against chilli thrips Scirtothrips dorsalis and yellow mite Polyphagotarsonemus latus, during kharif, 2019 and green and red chilli samples were subjected to residue analysis to evaluate the persistence of sprayed pesticides. Spinetoram 11.7SC at 60 g a.i./ ha was observed to be superior in managing chilli thrips with a mean reduction of 93.35% with least thrips population (0.53/ top 3 leaves) followed by cyantraniliprole 10.26OD at 60 g a.i./ ha and spirotetramat 15.31OD with 90.78 and 85.44 mean % reduction, respectively. Management of yellow mites was effective in plots treated with abamectin 1.9EC at 7 g a.i./ha of 85.73 mean per cent reduction followed by chlorfenapyr 10SC at 100 g a.i./ ha (83.48%) and emamectin benzoate 5SG at 10 g a.i./ ha (76.64%). Lambda-cyhalothrin and chlorantraniliprole residues were detected in green and red chilli among the sprayed pesticides.
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 ...
Evaluation of different IPM modules against pest complex of Chilli (cv. Byadgi dabbi)
Journal of entomology and zoology studies, 2018
Insect pest management has been dominated by the use of synthetic pesticides since its discovery. This awaken the world on dangers pose by the synthetic chemicals. Since then, the search for alternative pest control such that new molecules and bioagents, which is safe and effective, has been prioritized. An investigation on evaluation of different IPM modules for the management of pest complex in chilli (Cv. Byadgi dabbi)revealed that M-III was most effective module against thrips, mites and Helicoverpa armigera Hubner.Higher chilli yield 12.36 q/ha with 36.57 % increase over untreated control was observed in M-III (Root dip with imidacloprid 17.8 SL @ 0.5 ml/l for 30 min. at the time of transplanting + Acetamiprid 20 SP @ 0.2 g/l + Fenpropathrin 30 EC @ 0.5 ml/l + Diafenthiuron 50 WP @ 1.0 g/l + Spiromesifen 240 SC @ 1ml/l + Spinosad 45 SC @ 0.2 ml/l + Rynaxypyr 18.5 SC @ 0.2 ml/l) followed by M-II (Application of neem cake @ 2.5 q/ha at the time of sowing + Growing one row of mari...
Ann. Entomol., 40(2): 105-112 (2022), 2022
ABSTRACT The efficacy of six pesticides was studied to manage the chilli mite (Polyphagotarsonemus latus Banks) on bell pepper variety Indra in two consecutive Rabi seasons of 2017–2018 and 2018–2019. Fenazaquin 10% EC at the rate of 150 g a.i./ha showed the best efficacy against motile stages of mite followed by diafenthiuron 50% WP at 300 g a.i./ha. The highest reduction of chilli mite population over control was observed in fenazaquin 10% EC at the rate of 150 g a.i./ha treated plot (88.92%) after three sprays of the insecticide. The lowest reduction was obtained in azadirachtin 1% EC (500 mL/ha, formulated) treated plots (11.63%). The highest yield (487.67 q/ha) with an additional net return of Rs. 369540/ha and highest benefit-cost (B:C) ratio (1:3.71) were recorded from the fenazaquin sprayed plot. Diafenthiuron 50% WP, fenazaquin 10% EC, and azadirachtin 1% EC presented as relatively safer pesticides for the natural enemy populations in the field.