A COMPARATIVE STUDY OF THE ANTIFEEDANT EFFECT OF BOBGUNNIA MADAGASCARIENSIS (DESV.) J.H.KIRKBR & WIERSEMA. (CAESALPINIACEAE) PLANT EXTRACTS WITH A STANDARD STORAGE PESTICIDE

Bobgunnia madagascariensis, a wild leguminous tree in its indigenous use is cited as being used for fodder and exhibit termite-resistant properties.In the feeding deterrent tests, the methanol extract of all parts of the B. madagascariensis showed deterrent activity against the red flour beetle, Tribolium casteneum and the inhibition rates recorded for the methanol extracts was observed to be comparable to that obtained for a standard storage pesticide/fumigant Phostoxin, (Aluminium phosphide 57%) used by farmers for post harvest storage of grains and pulses in the Northern part of Nigeria.. Feeding Inhibition Rates recorded in the chloroform and methanol extracts from the leaves, stem and root barks of the B. madagascariensis showed considerable level of feeding inhibition rates, values were higher than 50% in most of the concentrations. For the contact toxicity tests, of the doses tested, 100^g/insect resulted in the highest contact toxicity to the red flour beetles, T. casteneum producing >70% mortality after 72hours of application with the methanol extracts.