Field Evaluation of Thiacloprid 240 SC Against Thrips Scirtothrips dorsalis Hood in Pomegranate

Vinothkumar, B.; Sangamithra, S.; Shanmugapriya, R.; Muthukrishnan, N.; Kuttalam, S.

doi:10.29321/maj.2019.000297

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“…These newer molecules always have a higher stability and superiority over the conventional pesticides to control the pest population density in classical manner at field level. Hence, evaluation of new molecular insecticides is necessary to replace the highly effective broad spectrum compounds, which were restricted due to their high mammalian toxicity and other side effects on non-target organisms (Vinothkumar et al, 2019). With this background, present study was under taken to evaluate the bioefficacy of new molecular insecticides against Diamondbackmoth (DBM), Plutella xylostella and their potential impact on natural enemies in cauliflower.…”

Section: Introductionmentioning

confidence: 99%

Bioefficacy of insecticides used against diamondbackmoth and their potential impact on natural enemies in cauliflower

Beena¹,

Selvi²

2022

JANS

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Field experiments were conducted at two different geographical regions viz., tropical region (Naraseepuram village, Coimbatore) and temperate region (Kookal village, Kotagiri, The Nilgiris) in summer and winter season’s to assess the bioefficacy of insecticides used against Diamondbackmoth (DBM), Plutella xylostella and their potential impact on natural enemies in cauliflower. The results revealed that the diamide insecticides like cyantraniliprole 10.26 OD @ 60 g a.i ha-1, chlorantraniliprole 18.50 SC @ 10 g a.i ha-1 and flubendiamide 20 WG @ 18.24 g a.i ha-1 registered more than 95 percent population reduction over untreated control followed by emamectin benzoate 5 SG @ 10 g a.i ha-1 and thiodicarb 75 WP @ 750 g a.i ha-1. Quinalphos 25 EC @ 500 g a.i ha-1and chlorpyriphos 20 EC @ 400 g a.i ha-1 were observed as least effective among the treated insecticides. The diamide insecticides recorded considerably less toxic effect on the natural enemies, especially spiders and coccinellids. Population reduction of natural enemies was noticed immediately after insecticide spray but it gradually increased and was recorded on par with the control population. Hence, cyantraniliprole 10.26 OD @ 60 g a.i ha-1, chlorantraniliprole 18.50 SC @ 10 g a.i ha-1 and flubendiamide 20 WG @ 18.24 g a.i ha-1 can be used as potential component in the integrated pest management against DBM in cole crops.

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Section: Introductionmentioning

confidence: 99%