Antifungal Effect of Mesquite (Prosopis juliflora) Extracts and Fungicide ( Revus top®) against Fungus Neofusicoccum mangiferae) of ( Mango Branch Wilt Disease

ABSTRACT

The present study was conducted in the Laboratory of Plant Pathology at the

College of Agricultural Studies.Sudan University of Science and

Technology- Shambat. To study the effect of water solvent extracts of Root,

Brak and Leave of Mesquite tree ( Prosopis juliflora) and Fungicide REVUS

top® on Wilt Branch disease , which is considerate one of most important

disease that infectous Mango trees (Mangifera indica), and caausing

significant reduction in yield.

In present study the pathogenic fungi isolated from infected plant parts of

Mango ( stems,branches and leave). The fungus identified based on

morphological and cultural charaters as Noefusicoccum mangiferae in vitro.

The study conducted to evaluate the effect of media on fungus growth of

N.mangiferae. the obtianed results showed that the fungus grew best on

Potato Dextrose Agar (PDA) at 28ºc. the antifungal effects of medicinal plant

extracts of Mesquite (Root,Bark and Leave), were determined by using

water as solvent by Poisoned Food Technique at 28ºc.Three concentration of

aqueous (Root,Bark and Leave), of Mesquite for at the same dose above were

used in addition to Control as showed in Tables (1,2 and 3).The result showed

that all aqueous extracts have significant efficacy in fungus growth inhibitory

compared with Control. Root and Bark extracts was the best in fungus

inhibitory by 96.1%,94.9% successively, espacially in high concentration

100% and Fungicide REVUS top® showed 99.1%. Among the results of

different extracts, Root and Bark of Mesquite and Fungicide REVUS top®

were geven the high inhibitory dgree to N. mangiferae .this results promising

and encouregement to carry out photochemical analysis to determine the

bioactive ingregiants in each part of Mesquite and use as alternative botanical to control Wilt Branch disease in future.