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2013•Annals of Plant Protection SciencesRequires access

Management of Lepidopteran pests of Groundnut through organic sources of nutrients

R.K. Murali Baskaran, D. S. Rajavel

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Abstract

Groundnut plots receiving vermicompost (2 t/ha) + neem cake (250 kg/ha) + bio-fertilizers (2 kg/ha) + NPK (8.5:34:54 kg/ha) had significantly less incidence of lepidopteran pests, recording the overall mean leaf damage of 13.3% with a reduction from full dose of NPK of 49.6% for leafminer (Aproaerema modicella), 13.0% and a reduction of 41.4% for tobacco caterpillar (Spodoptera litura) and 10.1% and a reduction of 43.8% for gram pod borer (Helicoverpa armigera) while it was 26.4, 22.2 and 18.0% in full dose of NPK. Yield in treatment was the highest of 1748 kg wet pods/ha while it was 1560 kg wet pods/ha in full dose of NPK and 987 kg wet pods/ha in untreated check.

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What this paper is about

Groundnut plots receiving vermicompost (2 t/ha) + neem cake (250 kg/ha) + bio-fertilizers (2 kg/ha) + NPK (8.5:34:54 kg/ha) had significantly less incidence of lepidopteran pests, recording the overall mean leaf damage of 13.3% with a reduction from full dose of NPK of 49.6% for leafminer (Aproaerema modicella), 13.0% and a reduction of 41.4% for tobacco caterpillar (Spodoptera litura) and 10.1% and a reduction of 43.8% for gram pod borer (Helicoverpa armigera) while it was 26.4, 22.2 and 18.0% in full dose of NPK. Yield in treatment was the highest of 1748 kg wet pods/ha while it was 1560 kg wet pods/ha in full dose of NPK and 987 kg wet pods/ha in untreated check.

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Available abstract

Groundnut plots receiving vermicompost (2 t/ha) + neem cake (250 kg/ha) + bio-fertilizers (2 kg/ha) + NPK (8.5:34:54 kg/ha) had significantly less incidence of lepidopteran pests, recording the overall mean leaf damage of 13.3% with a reduction from full dose of NPK of 49.6% for leafminer (Aproaerema modicella), 13.0% and a reduction of 41.4% for tobacco caterpillar (Spodoptera litura) and 10.1% and a reduction of 43.8% for gram pod borer (Helicoverpa armigera) while it was 26.4, 22.2 and 18.0% in full dose of NPK. Yield in treatment was the highest of 1748 kg wet pods/ha while it was 1560 kg wet pods/ha in full dose of NPK and 987 kg wet pods/ha in untreated check.

Key concepts: Spodoptera litura, Helicoverpa armigera, Caterpillar, Vermicompost, Point of delivery, Toxicology, Neem cake, Forensic science

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