Seasonal Occurrence of Henosepilachna vigintioctopunctata (F.) (Coleoptera: Coccinellidae) and Its Parasitoid on Ashwagandha in India

다국어 초록 (Multilingual Abstract)

The outbreak of Henosepilachna vigintioctopunctata (F.) was noticed on a medicinal plant, Withania somnifera Dunal during 2004-05. The population level of the pest was reached its peak in August. The parasitoid Pediobius foveolatus caused $51.94%{\pm}12.20%$ parasitism. The pest completed its life cycle in $20.15{\pm}1.50$ days on W. somnifera. The longevity of the male and female adults of the pest was $22.07{\pm}3.71\;and\;31.07{\pm}4.38$ days, respectively. The gravid females of H. vigintioctopunctata laid an average of $287.64{\pm}33.38$ eggs during their oviposition period of $10.40{\pm}2.80$ days.

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