1Brahmanand P. G. College, Rath, Hamirpur, U.P.
2College of Agriculture, Fisheries and Forestry, Fiji National University, Koronivia, Fiji
3Krishi Vigyan Kendra, Shahdol, M.P.
Department of Entomology and Agricultural Zoology, Institute of Agricultural Sciences, Banaras Hindu University, Varanasi, 221 005, India
Online published on 31 May, 2014.
An experiment was conducted at Agricultural Reseasch farm of Banaras Hindu university, Varansi during two years on pigeon pea [Cajnus cajan (L.) Millsp.] to manage the pod and grain damage by pod berer insect pests. The maize, pearl millet, sorghum, rice and black gram were grown with pigenpea cv- Bahar as intercrops. The bio-insecticides i.e. N.S.K.E. 5% Bacillus thuringiensis Kurstaki (B.T.) 1% and nimbecidine 1.5% were sprayed two times (first at flowering and pod formation stage and second after 20 days of first spray). The intercropping had significant influence in reducing the pod damage and grain damage (in number and by weight). The pigeonpea + rice and pigeonpea + sorghum were observed as most effective intercrops to minimise the crop losses. The one and two spray of bio-insecticides had significant influence in reducing of pod and grain damage (by number and by weight). Among which two sprays of NSKE 5% found most effictive followed by two sprays of Nimbecidine in reducing the crop lossed inflicted by Helicoverpa armigera, Lampides boetcus, Exelastis atomosa, Grapholita critica, Clavigralla gihbosa and Melanagrpmyza obtusa.
