melon ladybeetle, epilachna chrysomelina (f.), is one of the key insect pests of cucurbit crops in asia and north africa. the development and reproduction of e. chrysomelina were studied on watermelon, snake cucumber, cucumber and melon under laboratory conditions. mean total life cycle from egg to adult female was 21.3, 21.7, 26.0, and 21.3 days on the mentioned host plants respectively. mean ...

The gut regions of Epilachna chrysomelina are endowed with multiple enzymes that aid digestion host plant tissues. Digestive present in the E. during various developmental stages were studied laboratory to determine most destructive life stage beetle for proper management measures. Cellulase, α-glucosidase, amylase, lipase and proteinase activities observed guts. mid-gut recorded significantly ...

Aspects of the biology and morphometrics Epilachna chrysomelina was investigated on cucumber at National Horticultural Research Institute, Ibadan under ambient conditions: temperature 25o ± 2o C relative humidity 75 – 90%. The mean developmental period from egg to adult emergence 29.00 4.35 days. beetle development in four distinct stages; an egg, larval instars, pupa stage. eggs length breadth...

melon ladybeetle, epilachna chrysomelina (f.) is one of the most injurious cucurbit attacking pests. sampling program and host preference of this ladybeetle were studied in ahvaz, southwest iran. suitable sample size, suitable location for sampling as well as suitable sampling life stage of the insect were obtained to be 12 on, lower leaf surface and egg stage of the ladybeetle, respectively. e...