Sensitivity of Fusarium Solani to Different Fungicides Under Laboratory Conditions

Abstract

Dry rot disease caused by Fusarium splan is one of the most common and destructive potato diseases. This fungi causes different colored rots on potatoes. The symptoms of dry rot include mummified and wrinkled tubers. The rotted areas of the potato is brown to black in colour and the rot leads to depression in the tubers.Seed pieces may rot completely.Dry rot inhibits the development of potato sprouts and causes yield losses up to 25% with much greater infection up to 60% during storage. The fungi also contaminate the tubers with mycotoxins. The present study aimed at evaluating the efficacy of four fungicides namely Matco, Willonyl, Benlate, and Carbestin,at 100, 250 and 300 ppm against Fusarium splani associated with dry rot in potato. The result shows the difference in the efficacy of all tested fungicides against this pathogen. The application of Benlate, and Carbestin, significantly reduced the mycelial growth of tested Fusarium splan; pathogen followed by willonyl and Benlate, where the total mean of inhibitory effects were 74.64%, 63.13%, 25.73% and 21.74% respectively on 7th day of incubation suggesting Benlate, as a better one to use for the management of Fusarium solani.