Asian Journal of Bio Science

R. S. Bhadane ¹, S. T. Aghav ¹, M. A. Sushir ¹, P. K. Dharne ¹, A. J. Patil ¹

Affiliations
1 Department of Genetics & Plant Breeding, Oilseeds Research Station, MPKV, Jalgaon (M.S.), IN

Abstract

The field experiment on bio-efficacy of confidor 200 SL against sucking pests on groundnut were conducted at Oilseeds Research Station, Jalgaon during kharif 2000 and 2001. Three levels of doses of confidor 200 SL @100 ml, 125 ml and 150 ml per hectare in comparison with conventional insecticides, dimethoate and acephate were evaluated for their relative merits at 3, 7 and 14 days after spraying. All the dose of confidor 200 SL tested under field conditions were found to be significantly effective in reducing the nymphal population of thrips species and leaf hopper at 3 days after spraying recording 70-90% reduction in comparison with conventional insecticides, acephate and dimethoate. The infestation level of LH was not desirable at 7^th, 14^th days after spraying. It appeared that the molecule confidor 200 SL gave significant protection and proved efficient against the sucking pests, thrips and LH on groundnut during kharif season under Jalgaon conditions.

Keywords

Confidor, Imidacloprid, Sucking Pest.

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S. T. Aghav ¹, A. B. Tambe ¹, H. S. Baheti ¹, A. J. Patil ¹

Affiliations
1 Department of Entomology, Oilseeds Research Station, Mahatma Phule Krishi Vidyapeeth, Jalgaon (M.S.), IN

Abstract

A field experiment was conducted during rabi cropping season of 2001-02 to characterize relationship of various meteorological parameters with sorghum shoot fly incidence. The serial sowing technique was used starting from 36th meteorological week to 44th meteorological week. Maximum per cent dead hearts on 14 days after emergence were recorded during 36th meteorological week (45%) when prevailing maximum, minimum temperature and morning and evening relative humidity were 33.1oC,22.1oC, 77.5 and 58.5%, respectively. Maximum per cent dead hearts on 28 days after emergence were recorded during 36th meteorological week (78.8%) when prevailing maximum, minimum temperature and morning and evening relative humidity were 32.7oC,22.1oC, 78.7 and 54.7%, respectively. The shoot fly incidence in the form of dead hearts was correlated with the meteorological parameters corresponding to the period of observations. The population dynamics showed significant positive correlation with meteorological parameters studied while dead hearts formation was not correlated.

Keywords

Shoot Fly, Atherigona soccata, Sorghum.

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