Insect pest complex of okra and seasonal abundance of fruit borer complex in low hills of Himachal Pradesh
Keywords:
Okra, shoot and fruit borer, insect complex, <i>Earias vittella, Helicoverpa armigera</i>Abstract
Studies were conducted to investigate insect pest complex and seasonal abundance of borer complex of okra in the low hills of Himachal Pradesh during 2021. Fourteen insect pests were found damaging okra crop throughout the cropping season, out of which okra shoot and fruit borer (Earias vittella (Fabricius), Earias insulana Boisduval) and American bollworm (Helicoverpa armigera (Hubner)) caused direct damage to fruits. E. vittella was found to be the predominant fruit borer species. Maximum fruit infestation by H. armigera (23.5%) was observed during second week of July. Fruit infestation by okra shoot and fruit borer began in the first week of August and peaked (49.9 and 28.6 % at two locations) during second week of September. Fruit infestation by okra shoot and fruit borer showed highly significant negative correlation with maximum and minimum temperature while relative humidity and rainfall had non-significant correlation.Downloads
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