Biology of Diamondback Moth, Plutella xylostella (Lepidoptera: Plutellidae) of Cauliflower under Laboratory Conditions
Biology of Diamondback Moth, Plutella xylostella (Lepidoptera: Plutellidae) of Cauliflower under Laboratory Conditions
Muhammad Ramzan, Unsar Naeem-Ullah*, Mahreen Hanif, Muhammad Nadeem, Mirza Abdul Qayyum, Muhammad Javaid
ABSTRACT
Diamondback moth, Plutella xylostella is the serious and cosmopolitan pest for crops and vegetables especially cauliflower all over the world. The larvae feed on foliage and cause severe damage. Present study was carried out under laboratory conditions to elicit information about every stage like egg, larva, pupa and adult of Plutella xylostella on natural diet. The study revealed that incubation period of eggs varies from 3.2-4.3 hours. There are four larval instars of Plutella xylostella. The first, second, third and fourth instar larva survived for 3-5,3,1-4 and 2-3 days respectively while pupal and prepupal period lasted for 5-3 days, respectively. Adults lived for 4 to 5 days and life period under laboratory condition varies from 13 to 23 days.
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