Applied Biological Research
Year : 2006, Volume : 8, Issue : 1&2
First page : ( 51) Last page : ( 54)
Print ISSN : 0972-0979.

Relative efficacy of various insecticides and bio-pesticides against white grub damaging potato under rainfed conditions

Zaki F. A., Wani Zever Hussain, Wani A. Rouf

Division of Entomology, S.K. University of Agricultural Sciences & Technology of Kashmir, Shalimar, Srinagar, (J&K) - 191 121

Received:  7  January,  2005; Accepted:  12  September,  2006.

Abstract

Studies were conducted to evaluate the efficacy of some insecticides and biopesticides against white grub infesting potato in three different patterns viz., soil treatment (granular/dust application in furrows at sowing time), seed treatment (by seed coating method with rice starch as sticker) and as post-sown foliar sprays. The tuber sprouting was seriously impaired by seed treatment with Deltamethrin 2.8EC, Chlorpyriphos 20EC and Lambdacyhalothrin 5EC. Maximum tuber damage by white grub (20%) was seen in control followed by Quinalphos 25EC and Chlorpyriphos 20EC foliar sprays which recorded a tuber damage of 13.33 and 11.66%, respectively. Highest marketable tuber yield (13.62 kg plot⁻¹) was recorded in Imidacloprid seed treatment followed by soil treatments with Chlorpyriphos 1.5% dust and Carbofuran 3G, which recorded marketable yield of 11.5 and 10.6 kg plot⁻¹, respectively. Seed treatments with Imidacloprid 200SL and soil treatment with Chlorpyriphos 1.5% dust and Carbofuran 3G proved best treatments for of white grub management in potato under rainfed conditions of Kashmir valley.

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Key words

Biopesticides, insecticides, management, potato, white grub.

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