POPULATION DYNAMICS OF Tetranychus urticae KOCH AND ASSOCIATED PREDATORY SPECIES ON PERSIMMON Diospyros kaki AT QALUBYIA GOVERNORATE .

Document Type : Original Article

Authors

Plant Protection Research Institute , Agric, Res. Center, Dokki -Giza, Egypt.

Abstract

The present work aimed to throw more light on one phytophagous mite; Tetranychus urticaekoch (Family Tetranychidae ) was observed in persimmon Diospyros kaki ( Family :Ebenaceae ) from mid of febeuary till the first week of November .Predaceous mites included 5 species belonging to 5 genera and 2 families as following : Neoseiulus californicus , Amplyseius badryi , Phytoseius plumifer and Typhlodromus pyri ( Family : Phytoseiidae ) and only one species for family Stigmidae ; Agistemus sp . Family Phytoseiidae recorded high numbers of predaceous mits than family Stigmidae . Spider , Linyphia phrygiana ( Family : Linyphiidae ) was observed from may to September , Ants was observed on persimmon branches and fruits by different numbers from April to October .