Haemolymph Picture and Its Chemical Components in Schistocerca gregaria (Forskal) as Affected by Two Entomopathogenic Fungi

Effects of Metarhiznon anisopliae var acridum (Metchnikoff) Soroken, Beauverta bassiona (Bals) Vuill sole and their combination were studied oil the haemolymph picture of the 5(th) nymphal instar of Schistocerca gregaria (Forskal), also toxicity effect was evaluated against 3(rd) nymphal instar of S gregaria The infection of both fungi (sole or in combination) caused reduction in chemical composition of haemolymph in the 5(th) nymphal instar of S gregaria, also reduced the activity of Acid phosphatase (except in case of B bassiana infection), prophenyleoxidase, and phenyleoxidase. Five types of haemocytes were recognized. The treatments also reduced the total haemocytes count and resulted in changes of the percentages of the haemocyte types. The combined infection caused potential effect at all 03 observations when 3(rd) nymphal instar was treated with IX 10(3) spores/nymph While in case of (lose 2) X I spores/nymph of the mixture, there was all additive effect oil day 7 and potential effect oil days 10, 14, 18 and 21post infection, the combined infection also accelerated the mortality.