, Research Papers

Field efficacy of nuclear polyhedrosis virus against Heliothis armigera (Hbn.) and Spodoptera litura (Fb.) on different host crops

Research Papers
N. Dhandapani
Department of Entomology, Tamil Nadu Agricultural University, Coimbatore-641
P.C. Sundara Babu
Department of Entomology, Tamil Nadu Agricultural University, Coimbatore-641
S. Jayaraj
Department of Entomology, Tamil Nadu Agricultural University, Coimbatore-641
R.J. Rabindra
Department of Entomology, Tamil Nadu Agricultural University, Coimbatore-641
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Keywords

Nuclear polyhedrosis viruses
Heliothis armigera
Sorghum
Spodoptera litura
Groundnut

How to Cite

Field efficacy of nuclear polyhedrosis virus against Heliothis armigera (Hbn.) and Spodoptera litura (Fb.) on different host crops. (1993). Tropical Agriculture, 70(4). https://journals.sta.uwi.edu/ojs/index.php/ta/article/view/7122
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Abstract

Field experiments were carried out to assess the control of Heliothis annigera (Hb.) on five sorghum varieties, having different head morphologies, and Spodoptera litura (Fb.) on groundnut (Arachis hypogaea L.) using nuclear polyhedrosis viruses (NPVs) and locally recommended chemical insecticides. Results revealed that two applications of the NPVs at 250 larval equivalents (LE) ha-1 at 7- and 10-day intervals, respectively, were as effective as the chemical insecticide endosulfan in reducing the larval population and damage to grains in sorghum and leaves m groundnut and increasing grain yield of sorghum and of groundnut.
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