Feeding of fifth instar nymphs of Anacridium aegyptium L.on three desert
plants; Calotropis procera (shrub). Pulicaria crispa (bush) and Zygophyl/un simplex
(annual herb) compared with control plant (wheat-seedlings) indicate that the rate of
consumption and assimilation of nymphs decreased on the desert plants as
compared with wheat seedling. All nymphs fed on the desert plants stop feeding for
long time before death The results indicate that the desert plants used had an
antifeeding effect and also chronic toxicity. The electrophoresis analysis showed that
the protein bands of the nymphs fed on control plant were 16 bands but with those                         fed on the desert plants it ranged from 14 to 16 bands.