Seasonal Incidence of Major Insect Pests of Pea in Malwa Region of Madhya Pradesh

The seasonal variation or dynamics of insect pests are major constraints in the production of field pea. This study revealed that the seasonal incidence of pests in the Malwa region of Madhya Pradesh, during 2021-22 in the rabi season is related to ecological factors such as temperature, rainfall, and relative humidity. Three major pests of field pea were recorded, viz., gram pod borer (Helicoverpa armigera Hubner), leaf miner (Phytomyza horticola Goureau) and pea aphid (Acyrthosiphon pisum Harris). The H. armigera infestation occurred during the vegetative to pod-forming or reproductive stage from 50th SMW of 2021 to 12th SMW of 2022 (Standard Meteorological Week), which shows a significant negative correlation with minimum temperature (-0.637*) and was significantly influenced by A. pisum and P. horticola during the seedling to maturity stage.