Prey consumption by Chrysopa pallens of un-parasitized and Encarsia formosa parasitized Bemisia tabaci biotype B prey
2008
Khan, I.A. (Chinese Academy of Agricultural Sciences, Beijing (China). Inst. of Plant Protection) | Fang-Hao, W. (Chinese Academy of Agricultural Sciences, Beijing (China). Inst. of Plant Protection)
Bemisia tabaci biotype B has become a major pest, causing serious losses to many agricultural crops worldwide. Chrysopa pallens is an important polyphagous predator of B. tabaci on different agricultural crops. In the present study, prey consumption by C. pallens was determined with feeding on un-parasitized and Encarsia formosa parasitized B. tabaci biotype B prey on tomato host plant at controlled conditions in a climatic chamber. The results showed that E. formosa did not parasitize B. tabaci in the egg and N1 stage, but the subsequent nymphal stages were parasitized. C. pallens consumed higher number of un-parasitized than E. formosa parasitized N2, N3, N4 and pupal prey, where the consumed number of all prey stages increased in the subsequent larval stages of the predator.
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