International Journal of Plant Protection

D. B. Kadam ¹, D. R. Kadam ¹, S. M. Umate ¹, R. S. Lekurwale ²

Affiliations
1 Department of Agricultural Entomology, College of Agriculture, Vasantrao Naik Marathwada Krishi Vidyapeeth, Parbhani (M.S.), IN
2 Department of Agricultural Botany, Vasantrao Naik Marathwada Krishi Vidyapeeth, Parbhani (M. S.), IN

Abstract

A field experiment was conducted at the experimental farm of Department of Entomology, Vasantrao Naik Marathwada Krishi Vidyapeeth, Parbhani during Kharif 2013 to evaluate the bio-efficacy of neonicotenoids against sucking pests of Bt cotton. The results revealed that significantly lowest population of sucking pests per three leaves was recorded in nitenpyram 10 per cent WSG @ 100 g a.i./ha, dinotefuran 20 per cent SG @ 50 g a.i./ha and clothianidin 50 per cent WDG @ 20 g a.i./ha were the most effective treatments in reducing incidence of sucking pests on Bt cotton as compared to acetamiprid 20 per cent SP @ 20 g a.i./ha, imidacloprid 17.8 SL, thiamethoxam 25 per cent WS @ 25 g a.i./ha and thiacloprid 21.7 per cent SC @ 30 g a.i./ha.

Keywords

Bt Cotton, Sucking Pests, Neoneconetoids

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D. R. Kadam ¹, B. V. Deoreand ², S. M. Umate ³

Affiliations
1 Department of Agricultural Entomology, Vasantrao Naik Marathwada Krishi Vidhyapeeth, Parbhani (M.S.), IN
2 Department of Agricultural Botany, Vasantrao Naik Marathwada Krishi Vidhyapeeth, Parbhani (M.S.)
3 Department of Entomology, Mahatama Phule Krishi Vidyapeeth, Rahuri, Ahmednagar (M.S.), IN

Abstract

Field and laboratory studies on residues and dissipation of fipronil and metabolites in pomegranate fruits were conducted during 2010 at the Pesticide Residue Analysis Laboratory, Department of Entomology, Mahatma Phule Krishi Vidyapeeth, Rahuri, Ahmednagar (M.S.) India. The studies revealed that residues of fipronil persisted up to 3 and 5 days in arils, 7 and 10 days in whole fruits and 10 and 14 days in peel of pomegranate fruits at recommended and higher doses, respectively. The metabolites showed interesting mode of dissipation.

Keywords

Pomegranate, Fipronil, Residues

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D. B. Kadam ¹, D. R. Kadam ¹, S. M. Umate ²

Affiliations
1 Department of Agricultural Entomology, College of Agriculture, Vasantrao Naik Marathwada Krishi Vidyapeeth, PARBHANI (M.S.), IN
2 Department of Agricultural Botany, Vasantrao Naik Marathwada Krishi Vidyapeeth, PARBHANI (M.S.), IN

Abstract

Abiotic factors viz., temperature, rainfall, humidity etc. affect the incidence of insect pest population. The effects of weather parameters on incidence of sucking pests of Bt cotton was studied during Kharif 2013 at Department of Agricultural Entomology, Vasantrao Naik Marathwada Krishi Vidyapeeth, Parbhani (MS). The weather parameter studied regarding sucking pests of Bt cotton concluded that aphid, jassid and whitefly showed positively significant correlation with maximum temperature. Whereas, jassids and thrips showed negatively significance with relative humidity and rainfall.

Keywords

Bt Cotton, Intercropping, Sucking Pests.

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