Department of Agril. Entomology, Agricultural College and Research Institute (TNAU), Madurai-625 104, India
*Email: muralibaskaran2007@rediffmail.com
Online published on 19 August, 2013.
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.
Aproaerema modicella, Arachis hypogaea, Helicoverpa armigera, Spodoptera litura