Annals of Plant Protection Sciences
  • Year: 2018
  • Volume: 26
  • Issue: 2

Effect of abiotic factors on coccinellids population under mustard Agro-Ecosystem

Department of Entomology and Agricultural Zoology, Institute of Agricultural Sciences, Banaras Hindu University, Varanasi-221 005 (U.P.), India

*shrutigt6262@gmail.com

Online published on 10 October, 2018.

Abstract

The results revealed that the occurrence of coccinellid population begins from January 28, 2018 with 0.030 coccinellids population/plant was recorded. The coccinellid population reached to its peak recording 1.226/plant. Thereafter, a decrease in coccinellids population was recorded as low as 0.326/plant during first week of March. The correlation revealed that temperature had a positive correlation with coccinellid population, whereas negative correlation was observed with relative humidity at 0.05% level.

Keywords

Abiotic factors, Brassica campestris, Brassica juncea, Coccinellid