BIOLOGICAL ASPECTS AND LIFE TABLE PARAMETERS OF THE PREDACIOUS MITE, AGISTEMUS EXSERTUS GONZALEZ (ACARI: PROSTIGMATA: STIGMAEIDAE) FED ON FIFE FOOD TYPES

Document Type : Original Article

Author

Plant Protection Research Institute, A. R. C., Dokki, Giza, Egypt.

Abstract

The biology of Agistemus exsertus Gonzalez was studied using five different types of diets, eggs and nymph of Tetranychus urticae Koch, eggs and larva of Bemisia tabaci, and eggs of Ephestia kuehniella as the food source . The development was faster and reproduction was higher when A. exsertus fed on eggs of E. kuehniella. A di et of T.urticae, eggs provided the longest female longevity and mean total fecundity which resulted in the highest net reproductive rate (R0) value (93.71), intrinsic rate of natural increase (rm = 0.25), finite rate of increase (erm = 1.28) per day , and Gross reproduction rate (GRR =104.8) for A. exsertus.whereas the lowest value of all parameters achieved with a diet of B. tabaci larva.

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