Invasive Species Compendium

Detailed coverage of invasive species threatening livelihoods and the environment worldwide

Abstract

Seasonal abundance of the whitefly Trialeurodes ricini (Misra) (Homoptera: Aleyrodidae) on some weeds and on castor plants in Qalyubia, Egypt.

Abstract

The seasonal abundance of the castor whitefly Trialeurodes ricini (Misra) was studied on castor plants in addition to 8 species of wild plants (six winter and two summer weeds) at Qalyubia Governorate in Egypt in 1993/94. The highest population on these host plants occurred between September and December. Ricinus communis, Bidens bipinnata, Cichorium endivia and Sonchus oleraceus appeared to be the major host plants.