tailieunhanh - Biology of diamondback moth, Plutellae Xylostella (Lepidoptera: Plutellidae) of cauliflower under laboratory condition

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 ± days). The larva passed through four different instars. The first, second, third and fourth instar larva lived for 2 to 3 days (Av. days), 2 days (Av. days), 1 to 3 days (Av. ± days) and 2 to 4 days (Av. ± days), respectively with a total larval period of 7 to 12 days (Av. 9 days). The pre-pupal and pupal stage lasted for 1 - 2 days (Av. ± days) and 3 to 5 days (Av. ± days), respectively. The adults lived for 3 to 7 days (Av. ± 1 days) and the entire life span under laboratory conditions varied from 13 to 22 days (Av. ± days). | Biology of diamondback moth, Plutellae Xylostella (Lepidoptera: Plutellidae) of cauliflower under laboratory condition

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