Hayder Abdelgader
Agricultural Research Corporation, Sudan
Title: Effects of Botanical Insecticides on the Egg Parasitoid Trichogramma cacoeciae Marchal (Hym. Trichogrammatidae)
Biography
Biography: Hayder Abdelgader
Abstract
Laboratory studies were carried to investigate the side effects on Trichogramma cacoeciae of two formulated products of each of two botanical insecticides: Azadirachtine (Neemazal T/S Blank and Celaflor®) and Quassin (alcoholic or water extracts). The results showed that by exposing adults T. cacoeciae to residues of Neemazal formulations on glass plates, the tested preparations were either harmful (Neemazal-Blank) or moderately harmful (Celaflor). The two Quassin formulations tested were harmless. When treated host eggs were offered to adults T. cacoeciae, all tested chemicals were almost harmless. In a further test, host eggs parasitized at different time intervals (1-8 days), were sprayed at the same day. The results indicated that only Neemazal T/S-Blank formulation was slightly to moderately harmful reducing adult emergence.