Abstract

Neem oil (NO) 3% and neem seed kernel extract (NSKE) 5% high volume applications were superior to monocrotophos, neem cake extract (NCE) 10% and neem coated urea (NCU) treatments in suppressing brown planthopper (BPH) Nilaparvata lugens (Stal) population 3 days after spraying (DAS) in Kharif season. NO 3% and NSKE 5% also effectively checked leaf folder, Cnaphalocrocis medinalis (Gunee), upto 14 DAS and were on par with monocrotophos 0.04%. Ear head bug Leptocorisa spp population remained very low in all the plots treated with neem products. There was a better recolonisation of the predatory wolf spider, Lycosa pseudoannulata in neem treatments. The yield level in these treatments was comparable to that of insecticide treatment. Yellow stem borer, Scirpophaga incetulas (Walker) incidence was not reduced by neem products in the rabi season.

Keywords: Neem Products, Rice Pests, Spiders