Seasonal incidence of leafhopper, Amrasca biguttula biguttula (Ishida) infesting summer okra

Abstract

An investigation to study the population dynamics of leafhopper, Amrasca biguttula biguttula (Ishida) (Cicadellidae) in okra was carried out at CPCA Sardarkrushinagar Dantiwada Agricultural University, Sardarkrushinagar, Gujarat during summer 2023. The incidence of leafhopper commenced after one week after germination (10th SMW) and continued up to removal of crop in the 21th SMW. A higher incidence of leafhopper was observed during the 17th to 20th SMW. Leafhopper population exhibited significant positive correlation with maximum temperature, whereas it showed highly significant positive correlation with minimum temperature, bright sunshine hours and evaporation. Population of coccinellids and spider had highly significant positive correlation with leafhopper population.