Bhartiya Krishi Anusandhan Patrika

  • Year: 2012
  • Volume: 27
  • Issue: 1

Influence of intercropping on larval population and pod damage by pod fly and its parasitization by eulophid parasitois (Euderus lividus ashm.) in pigeon pea

  • Author:
  • Ram Subhag Singh1, Paras Nath2, Akhilesh Kumar3
  • Total Page Count: 7
  • DOI:
  • Page Number: 23 to 29

1Entomology Department B.N.P. Go, College, Rath, Hamirpur (U.P.)

Department of Entomology and Agricultural Zoology, Institute of Agrocultural SCiences, Banaras Hindu University, Varanasi, 221 005, India

2College of Agriculture Forestry & Fisheries, Fizl, National University, Koronivia, Fizi.

3K.V.K. Shahdol (M.P.)

Abstract

Field experiments were conducted at for two years Agricultural Research farm of Banaras Hindu University. Varanasi to manage the crop losses due to pod fly (Melanagromyza obtusa Malloch) in pigeon pea CV. Bahar through intercropping. The pigeonpea was intercropped with maize, pearl millet, sorghum, rice and black gram. The pigeon pea + sorghum intercrop had significant influence in reducing the larval population (8.86/20 pod) of pod fly in comparison with sole crop of pigeonpea (10.30 larvae/20 pods). The peak activity of pod fly 16.55 and 19.80 maggots/20 pods were observed at 258 DAS i.e. second fortnight of March. Pigeonpea + rice (19.24%) and piegonpea + sorghum (23.44%) had significant influence on the parasitization of pod fly maggot by eulophid parasitoid (Euderus liuidus Ashm.) as compare to pigeonpea sole crop (14.85% and 20.01%) during first and second year experiment, respectively. The maximum 37.48% and 54.81% parasitization in pod fly maggot were observed at 273 days after sowing. When the crop was at pod formation stage (228 DAS) parasitized maggot of pod fly was zero. The intercropping also played significant role in reduction of pod and grain damage by pod fly. The minimum pod damage (24.88%) and grain damage(9.59%) by pod fly were noticed in pigeonpea + blackgram intercrop and varied significantly with pigeonpea sole crop which had 29.36% pod damage and 10.93% grain damage.