1College of Agriculture, Forestry and Fisheries, Fiji National University, Koronivia, Fiji
2Krishi Vigyan Kendra, Shahdol, M.P.
Department of Entomology and Agricultural Zoology, Institute of Agricultural Sciences, Banaras Hindu University, Varanasi, 221 005, India
*Corresponding author address: Brahmanand P. G. College, Rath, Hamirpur, U.P.
Online published on 13 September, 2013.
The effect of intercropping and application of ecofriendly biopesticides (NSKS 5%, B.t (Halt) 1.5% and Nimbecidince 1%) on the population of spider fauna inhabiting pigeonpea cv. Bahar agroecosystem was studied. The three species of spiders i.e. lynx spider (Oxyopus sp.), sac spider (Clubiona sp.) and orb weaver spider (Araneu ssp.) predominantly occurred to predates on larvae of L. boeticus, E. atomosa and G. critica. The intercropping had significant influence (P=0.10) on the population of spider fauna. The pigeonpea + rice intercrop harboured maximum population of spider (0.75 plantl) than other intercrops and monocrops during both years of experiment. The application of ecofriendly biopesticieds for the management of pod borers had no adverse effect on the population of spider fauna. The minimum population of spider was observed at 228 DAS. Thereafter, increased gradually to reach its peak at 273 DAS.
Biopesticides, Intercropping, Pigeonpea, Spiders population
