Enzymatic efficacy of Nimbecidine®, a neem extract, against the phosphatases in certain tissues of the desert locust Schistocerca gregaria (Forskal) (Orthoptera: Acrididae)

The desert locust Schistocerca gregaria is a destructive pest for several crops, particularly which are considered as the main food sources human and animals. Much attention has been paid to use plant extracts or products controlling this pest. present study aimed investigate disturbing effect of Nimbecidine on phosphatase activity in S. gregaria. penultimate instar nymphs were treated, through fresh food, with 1.0 0.3% activities acid (ACP) alkaline (ALP) estimated last adults. most important results could be summarized follows. significantly promoted ACP haemolymph, irrespective stage, age, concentration. In addition, exhibited remarkable inducing enzyme fat bodies, regardless stage an exception late-aged was suppressed. Regarding ALP haemolymph adults, clearly displayed general reducing nymphal instar. An exceptional case promoting action detected newly emerged at higher respect indicated that induced but reduced