Volume : 9, Issue : 1, JAN 2023

STUDY OF POPULATION DYNAMICS OF MAJOR INSECT PESTS OF OKRA PLANTS.

SANDHYA PANDEY, KUMUD KUMARI, V K PRABHAT

Abstract

The present paper deals with Population dynamics of major insect pest of okra, experiment was carried out in P P N P G college Kanpur. The incidence of leaf hopper, Amrasca biguttula biguttula (Ishida), whitefly, Bemisia tabaci (Genn.) and shoot and fruit borer Earias spp. was registered as major insect pests on okra . The incidence of leaf hopper and whitefly was recorded in 32nd standard meteorological week (SMW). The peak incidence of leaf hopper and whitefly was recorded in 36th SMW in three leaves. The infestation of shoot and fruit borer on shoot was recorded in 32nd SMW, which reached its peak in 36th SMW. The population of leaf hopper, whitefly and lady bird beetle, Menochilus sexmaculatus (Fab.) had significantly positive correlation with minimum temperature and relative humidity, but non-significant with rainfall and maximum temperature. The shoot infestation had non-significant relation with abiotic factors. Infestation of fruits had positive significant correlation with maximum temperature and negative significant with minimum temperature.

Keywords

POPULATION DYNAMICS, INSECT PESTS, OKRA.

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