EFFECT OF SOME PLANT POWDERS ON THE BIOLOGY OF Sitotroga cerealella OLIVIER (LEPIDOPTERA, GELECHIIDAE) ON WHEAT

The efficacy of four plant materials (Mentha crispate; Ocimum gratissimum Artemisia absinthium and Curcuma longa) was evaluated against the grain moth Sitotroga cerealella (Olivier) on wheat grains under laboratory conditions. In all trials, mortality percentages caused by O. gratissimum treatment was observed to be relatively high (58.7%) in comparison with the other tested host. Survival rate of S. cerealella was significantly affected by M. crispate; A. absinthium and C. longa treatments. Plant powders usually did not affect the adult longevity, while O. gratissimum treatment significantly reduced the fecundity and the hatchability of S. cerealella.