Abstract:
Three life table studies of Plutella xylostella (L.) (Lepidoptera: Plutellidae) were studied during 2008-2009 at Tando Allahyar, Sindh, Pakistan in the cauliflower plants under field conditions. First study was carried out during autumn season that is, October-November 2008, the second study during winter season (January-February 2009) and the third study during spring season (March 2009). To describe the mortality processes of immature stages of P. xylostella, the data on population census were recorded on alternate days from 50 randomly selected plants. All immature stages i.e., eggs, larvae and pupae were recorded. Various predators and parasitoids were recorded feeding upon immature stages of P. xylostella. Predators included various species of ants and spiders, coccinellid beetles and Chrysoperla sp. Cotesia plutellae and Oomyzus sokolowskii were important larval and pupal parasitoids, respectively. There was relatively low parasitoid pressure during summer as compared to winter and spring.
Page(s):
1479-1485
DOI:
DOI not available
Published:
Journal: Pakistan Journal of Zoology, Volume: 44, Issue: 6, Year: 2012