Seasonal incidence and correlation studies between the rice whorl maggot (Hydrellia philippina F.) and weather parameters under Bastar Plateau conditions

Abstract

For the assessment of the seasonal behavior of the whorl maggot of rice, an experiment was performed at research cum instructional farm of Shaheed Gundadhoor College of Agriculture and Research Station, Jagdalpur, Bastar (C.G.) during Kharif 2022. The whorl maggot (Hydrellia philippina F.) was active throughout the season in the rice habitat. The 34th SMW (month of August) had the highest levels of leaf damage (29.55 %) caused by whorl maggots. According to research on the association between abiotic parameters and whorl maggot, a highly significant positive correlation with the minimum temperature (r = 0.756**) and a significant positive correlation with relative humidity-II (r = 0.576*) was observed.