Journal of Entomology1812-56701812-5689Asian Network for Scientific Information10.3923/je.2008.356.368Eretmocerus mundus Mercet (Hymenoptera: Aphelinidae), a Parasitoid
of Bemisia tabaci (Gennadius) (Hemiptera: Aleyrodidae)]]>Abdel-BakyNagdy F. Al-DeghairiM.A. 6200856Impact of the host plant type on certain biological
aspects and parasitism level of E. mundus under laboratory and
semi-field conditions was evaluated. The parasitoid biological aspects
were greatly differed within the host type. Parasitoid life cycle was
shorter on squash, followed by common beans and sweet pepper, which lasted
27.6±1.9, 25.9±1.3 and 23.7±1.1 days, respectively.
In contrary, female longevity was shorter on the sweet pepper (9.9±1.6
days), followed by the common bean (10.8±1.1 days) and was longer
on squash (11.7±1.3 days). Additionally, E. mundus life
span and female fecundity were also studied and varied among the studied
hosts. Effect of host plants on both colonization of pest nymphs and parasitism
percentages, were also evaluated. Greater numbers of young and old nymphs
and higher parasitism rates were observed on squash followed by common
beans, whereas, sweet pepper was last in this respect. Subsequently, the
reproduction and biological characteristics of E. mundus have been
shown obviously to be influenced by host plant. Efficiency of releasing
parasitoids was greatly affected by host plant type as well as releasing
rates. Releasing the parasitoid with constant numbers against various
population densities of the pest achieved different pest control levels.
Releasing rates of 1:5 and 1:10 (parasitoid:pest) gave good control measures,
whereas, moderated control levels were fulfilled with ratios 1:20 and
1:30. Increasing pest densities negatively correlated with good control
measures.]]>Abdel-Baky, N.F. and M.E. Ragab,2005Eretmocerus mundus (Hymenoptera: Aphelinidae), a parasitoid of Bemisia argentifolii (Hemiptera: Aleyrodidae) and its role in pest population regulation on tomatoes.]]>3022172227Ardeh, M.J., P.W. Jony and J.C. Van Lantern,2005Eretmocerus spp.]]>337480Buckner, J.S. and W.A. Jones,2005Eretmocerus mundus, to silverleaf whitefly nymphs during oviposition.]]>1405965Byrne, D.M. and W.B. Miller,1990Bemisia tabaci.]]>36433439Damásio, J., L. Guilhermino, A.M.V.M. Soares, M.C. Riva and C. Barata,2007Daphnia magna exposed to the insecticide fenitrothion.]]>707482De Barro, P.J., P.I. Hart and R. Morton,2000Eretmocerus spp. (Haldeman) and three Encarsia spp. forster and their potential as biological control agents of Bemisia tabaci biotype B in Australia.]]>9493102Dittrich, V., S. Uk and G.H. Ernst,19901990pp: 263-285pp: 263-285Duncan, D.B.,19512171189Faust, R.M.,19921992Foltyn, S. and D. 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