Effect of food plants on the offspring sex ratio of Diaeretiella rapae ( Hymenoptera : Aphidiidae ), a parasitoid of Lipaphis erysimi Kalt ( Hemiptera : Aphidae ) \ Biological agriculture and horticulture : an international journal [Artikel]
Shukla, A.N. \ Tripathi, C.P.M. \ 1993
The sex ratio of Diaeretiella rapae was found to be density dependent and influenced by the food plants of the aphids. The decrease in sex ratio was highest in the case of Raphanus sativus food plants, intermediate on Brassica campestris food plants, ...
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