Fungicidal Management of Cercospora Leaf Spot of Mungbean (Vigna radiata)

Mungbean [Vigna radiata (L.) Wilczek] is an important pulse crop grown widely in entire Indian Sub-continent during rainy and summer season. The average productivity of mungbean in India is very low due to several abiotic and biotic stresses. The present investigation was carried out to evaluate the effectiveness 6 fungicides at 250, 500, 750, 1000 and 1500 ppmconcentration in vitro and green house condition against C. canescens Ellis & Martin. The results showed that all fungicides were inhibitory to mycelial growth and the effectiveness of fungicides increased with an increase in concentration and time. The Carbendazim and Propiconazole completely inhibited the mycelial growth at 250 ppm concentration while,Copper oxychloride, Thiophenate methyl and Mancozeb was found most effective at 1500 ppm in inhibiting mycelial growth of the fungus. Thiram was found ineffective against C. canescens. In green house condition, the similar patterns were also observed for reduction in diseases intensity.