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International Journal of Current Microbiology and Applied Sciences (IJCMAS)
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National Academy of Agricultural Sciences (NAAS)
NAAS Score: *5.38 (2020)
[Effective from January 1, 2020]
For more details click here

ICV 2018: 95.39
Index Copernicus ICI Journals Master List 2018 - IJCMAS--ICV 2018: 95.39
For more details click here

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PRINT ISSN : 2319-7692
Online ISSN : 2319-7706
Issues : 12 per year
Publisher : Excellent Publishers
Email : editorijcmas@gmail.com / submit@ijcmas.com
Editor-in-chief: Dr.M.Prakash
Index Copernicus ICV 2018: 95.39
NAAS RATING 2020: 5.38

Int.J.Curr.Microbiol.App.Sci.2017.6(7): 2415-2421
DOI: https://doi.org/10.20546/ijcmas.2017.607.343


Toxicity of Some Pesticides to two Important Parasitoids of Lepidopteran Tissue Borers
Suvadip Saha*, P. Sudheer Kumar, Sagarika Bhowmik and Bipradeb Talukder
Department of Agricultural Entomology, BCKV, Mohanpur-741252, Nadia, W.B., India
*Corresponding author
Abstract:

The present study was conducted in the Bio-control laboratory, BCKV located at Mohanpur, Nadia, West Bengal, India to study the toxic effect of some modern insecticides namely cypermethrin 25% EC @ 0.01% a.i., wettable Sulphur 80 WP @ 0.24% a.i., profenofos 50% EC @ 0.05% a.i., in rynaxypyr 20% SC @ 0.006% a.i., spiromesifen 240 SC @ 0.024% a.i. and imidacloprid 17.8% SL @ 0.005% a.i., neemazal 1% EC @ 0.002% a.i. to the pupae of Trichogramma chilonis Ishii (Trichogrammatidae: Hymenoptera) and adults of Bracon brevicornis Wesmael (Braconidae; Hymenoptera).The results showed that Cypermethrin was found to be the most toxic insecticide (65.52% mortality) to the pupae of T. chilonis followed by wettable sulphur (42.7% mortality) and profenofos (37.08%mortality). Toxicity of rynaxypyr, imidacloprid and spiromesifen showed low level of toxicity (27.59%, 25.84% and 26.97% mortality respectively). Neemazal 1% EC was the safest (7.87% mortality). In case of Bracon brevicornis adults, both cypermethrin (0.01% a.i.) and wettable sulphur (0.24% a.i.) were highly toxic (70.35% and 62.84% mortality respectively). Profenofos showed moderate level of toxicity whereas toxicity recorded in imidacloprid, spiromesifen and rynaxypyr was low (32.43%, 32.43% and 35.81% mortality respectively). Neemazal (0.002% a.i) was found to be the safest (20.08% mortality).


Keywords: Hymenoptera, Trichogramma chilonis, Bracon brevicornis, Corcyra cephalonica, Mortality.
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How to cite this article:

Suvadip Saha, P. Sudheer Kumar, Sagarika Bhowmik and Bipradeb Talukder. 2017. Toxicity of Some Pesticides to two Important Parasitoids of Lepidopteran Tissue Borers.Int.J.Curr.Microbiol.App.Sci. 6(7): 2415-2421. doi: https://doi.org/10.20546/ijcmas.2017.607.343