The role of natural enemies to control diamondback moth, Plutella xylostella (L) population in various seasons

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...

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Published in:Pakistan journal of zoology 2012-12, Vol.44 (6), p.1479-1485
Main Authors: Syed, T.S. (Sindh Agriculture Univ., Tandojam (Pakistan). Dept. of Entomology), Abro, G.H. (Sindh Agriculture Univ., Tandojam (Pakistan). Dept. of Entomology), Awan, M.S. (Karakorum International Univ., Gilgit-Baltistan (Pakistan). Dept. of Agriculture and Food Technology), Sattar, M. (Nuclear Inst. for Agriculture and Biology, Faisalabad (Pakistan). Plant Protection Div.)
Format: Article
Language:English
Subjects:
ANIMAL DEVELOPMENTAL STAGES
Araneae
BRASSICA OLERACEA
Census
CHRYSOPERLA
COTESIA PLUTELLAE
INSECT CONTROL
LIFE TABLES
MORTALITY
NATURAL ENEMIES
OOMYZUS
PEST INSECTS
PLUTELLA XYLOSTELLA
SEASONS
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Summary: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.
ISSN:0030-9923