Vertical distribution of the immature stages of cotton and tomato whitefly, bemisia tabaci (genn.) and the cotton aphid, aphis gossypii glov. on eggplant, solanum melongena v ar. esculentum ness. at Menofyia and qal youbia governorates [electronic resource].

Includes references.

This study was conducted at Menofyia and Qalyoubia governorates in two successive seasons 2005 and 2006 to study the most suitable vertical plant Levels that, A. gossypii and B. tabaci prefer to infest the eggplant. The obtained results could be focused as follows:¬ At both governorates; the most preferable level for A. gossypii (nymphs) was the lower where the relative humidity was high followed by middle and upper. B. tabaci (eggs) was found mostly in the upper and middle levels, vice-versa nymphs at Menoufyia and Qalyoubia governorates, the lower and middle levels were the most infested which means that they are more suitable for development. A. gossypii (nymphs) population densities were higher at both Qalyoubia than Menofyia governorate during 2006 than 2005 seasons. B. tabaci (eggs and nymphs) population were higher at Qalyoubia governorate than Menofyia in both seasons 2005; 2006. In general the population densities of the two studied insects were higher in 2006 season.

Summary in Arabic.

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