Egg period varies

Biology and bionomics of Cheilomenes sexmaculatus on Lipaphis erysimi was investigated under laboratory conditions during 2013. Biology of C. sexmaculatus on Lipaphis erysimi revealed the presence of four instars, which lasted for of 7.16 ± 0.99 days. The eggs hatched within 1–3 days. The total life span of male and female were 16.44 ± 1.19 days and 22.04 ± 2.42 days, respectively. The mean pupal period lasted for 5.88 ± 0.73 days. The fecundity of the female was 323.52 ± 24.80 eggs / female.

8p chauchaungayxua6 26-06-2020 13 1   Download

Biological studies conducted during 2017-18 at the Post Graduation Research laboratory, Department of Entomology, Agricultural College, Naira on Diamondback moth, Plutellae xylostella (L.) (Lepidoptera: Plutellidae) revealed that the egg period (incubation period) varies from 2 to 4 days (Av. 3 ± 0.5 days). The larva passed through four different instars. The first, second, third and fourth instar larva lived for 2 to 3 days (Av. 2.5 days), 2 days (Av. 1.5 days), 1 to 3 days (Av. 1.75 ± 0.25 days) and 2 to 4 days (Av. 2.75 ± 0.

8p chauchaungayxua1 04-12-2019 9 0   Download