Vol. 11, Issue 7 (2022)

Author(s):
Shallu Raina, Uma Shankar and Devinder Sharma

Abstract:
Field experiments were carried out at Entomology Research Farm, SKUAST-J Chatha, Jammu for two consecutive years (2017-19) to study the population dynamics of aphids (Chaetosiphon fragaefolii Cockerell) on strawberry and impact of different weather parameters on aphid population. The studies witnessed commencement of aphids on strawberry from 3^rd to 22^nd standard week during both the years, with one peak in 2018 (12^th standard week) and two peak populations in 2019 (8^th and 12^th standard weeks). The aphid population was negatively correlated with weekly mean morning and evening relative humidity (%) and rainfall (mm) and positively correlated with maximum and minimum temperatures (°C).