Biodegradation of the Nematodes Insecticide Vydate by certain plant pathogenic fungi

Abstract

This study aimed to know the effect of nematodes Insecticide "Vydate" on vitality and activity of two pathogenic fungi of plant which is:Aspergillus flavus and Fusarium oxysporum in solid medium PDA and liquid structural medium "Trace Salt Solution". Results showed that the insecticide Vydate have a stimulated effect on growth of both fungi which promoted on solid and liquid media when it added to them and with concentration 1, 2 , 5 ppm respectively this result gave evidence that the two fungi were able to conversion this insecticide to other compounds laboratory and this refer to that the microbial play a big role in analysis of insecticide and used it as a nutrient source of carbon, nitrogen and energy through is growth in liquid medium which contain a very little mounts from these elements. When the insecticide effect studied on spores formation, the result showed is that there is no negative effect on spores formation and on length of germinal tubes.This means that Vydate has a stimulated effectance on both fungi growth:A.flavus and F.oxysporum.