OVERWINTERING OF TRICHOGRAMMA-EVANESCENS WESTW IN EGYPT (TRICHOGRAMMATIDAE, HYMEN)

Eggs of A. kuehniella parasitized by T. evanescens were held outdoors in a shadow place during the period from November 20th, up to parasite emergence. Blackness of the parasitized eggs appeared 3 days later. O verwintering lasted for 99 days starting from 24th, November till 2nd of March at an average temperature of 10.1 degrees C. When temperature increased to an average of 16.6 degrees C, the parasitoids continued their development for 5 days till the emergence of adults. Emerged adu lt parasitoids showed relatively normal bioaspects as those reared in the laboratory.