H.A. BORAEI
Department of Economic Entomology
Kafr El-Sheikh, Fac. Agric., Tanta Univ., Kafr El-Sheikh, Egypt

ABSTRACT

It is the first record of Mircoctonus sp. on the Egyptian alfalfa weevil, (Hypera brunneipennis Boh.) in Egypt . It was recorded from 11 localities at 4 governorates in the Nile Delta during the study which extended six years. Rearing, as a method for evaluating the percentage of parasitism, revealed that it ranged from nil to 30% with an overall mean of 8.0%. When the dissection method was followed, the percentage of parasitism ranged from nil to 12.5%with an overall mean of 4.7%. Higher levels of parasitism were observed when larvae were dissected during years of 1992 and 1993, since percentages of parasitism were 20 and 44%, respectively, with an overall mean of 40%.

Key Words: Microctonus sp., Hymenoptera, Braconidae, Alfalfa weevil.