EFFECT OF SOME TOMATO VARIETIES ON BIOLOGICAL ASPECTS AND FECUNDITY OF THE TWO SPOTTED SPIDER MITE , TETRANYCHUS URTICAE KOCH ( ACARI: TETRANYCHIDAE )

Biological and fecundity of the two spotted spider mite, Tetranychus urticae Koch reared on three tomato varieties: Alissa, 023 and 5043 were evaluated under laboratory conditions of 25±1oC and 65±5% R. H. The developmental times from egg to adult stage ranged from 8.95 to 9.63 days on Alissa and 023 varieties, while, on 5043 variety it lasted 11.13 days for female, while, the male life cycle stayed 7.5, 8.32 and 9.71 days, when, fed on the same tomato varieties. Female longevity was differed among the tested tomato varieties whereas, it lasted 11.67, 12.1 and 12.68 days when fed on, Alissa, 023, and 5043 varieties of tomato , respectively. The tested tomato varieties greatly affected fecundity, female deposited of the reared mite , where the maximum number of laid eggs were registered on 5043 variety (42.0 eggs ) , while, the least number of laid eggs of the spider mite, T. urticae was observed on 023 variety