Studies On The Date Stone Beetle Coccotrypes Dactyliperda Fabricius

The aim effect of different combinations of constant temparatures and relative humidites on biological aspects, the susceptibility of some date paim varieties to natural infestation with the insect as well as the seasonal fluctuation pattern of the population of the different insect stages in the fallen stones and fruits under hayani date paim trees as influenced by variations in certain weather factors , morphological studies on all insect stage (egg,larva, pupa and adult).