Investigation on different systemic fungicides against Leveillula taurica causing powdery mildew of cluster bean in vitro

Abstract

Cluster bean (Cyamopsis tetragonoloba (L.) Taub.) is one of the most important legume crops grown in India. Powdery mildew caused by Leveillula taurica is one of the major constraints in the production of cluster bean. Different chemicals were evaluated in vitro to choose the promising chemicals and their performance was judged in the field conditions against powdery mildew of cluster bean caused by Leveillula taurica. Among the systemic fungicides, 78.39 percent spore germination inhibition was observed in the treatment of propiconazole followed by hexaconazole (70.25%). The results of present study indicate that the systemic fungicides from triazole group effectively inhibited spore germination.