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S. Sachithanandam ¹, R. J. Rabindra ¹, Jayaraj ¹

Affiliations
1 Centre for Plant Protection Studies, Tamil Nadu Agricultural University, Coimbatore 641 003, IN

Abstract

Wettable powder and dust fonnulations of nuclear polyhedrosis virus @ 4.6 × 10⁶ POB/pot were as effective as chlorpyriphos 0.04% spray or carbaryl 5% dust against thIrd Instar larvae of Spodoptera litura (F.) on groundnut plants in pots. The virus formulations however were inferior to the unformulated virus. At higher doses, the wettable powder (0.8 × 10³ POB/pot) and dust (1.2 × 10⁸ POB/pot) formulations gave control equivalent to unformulated virus (0.8 × 10⁸ POB/pot). The leaf damage could be significantly reduced in all the treatments.

Keywords

NPV, Wettable Powder, Dust, Spodoptera litura, Groundnut.

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S. Sachithanandam ¹, R. J. Rabindra ¹, S. Jayaraj ¹

Affiliations
1 Department of Agricultural Entomology, Centre for Plant Protection Studies, Tamil Nadu Agricultural University, Coimbatore 641 003, IN

Abstract

From time to time. it has been suggested that microbial insecticides might be combined with chemical pesticides used in agriculture and forestry. Jaques (1985) suggested that the compatibility of insect viruses with pesticide chemicals especially fungicides and insecticides is important because viruses may have to be mixed with other chemicals during practical use in the field to avoid duplication of application operation. Relationships of viruses and pesticides have been reviewed by Benz (1971) and Jaques and Morris (1981).In the present study, the compatibility of S. litura NPV with mancozeb, copper oxychloride and carbendazim was studied with a view to imd out if NPV and fungicides could be applied together to manage both S. litura and foliar diseases.

Keywords

Spodoptera litura, NPV, Fungicides, Compatibility.

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