Efficacy of New Fungitoxicant Molecules in Management of Anthracnose (colletotrichum Gloeosporioides penz.) of Arecanut (areca Catechu l.)

Dropping of immature arecanut due to anthracnose was reduced (15.55 %) by application of difenconazole @ 0.1 per cent twice during April and May, 2009. Hexaconazole @ 0.1% application twice was also effective in reduction (18.88 %) of anthracnose of arecanut during summer. This was followed by Carbendazim + Mancozeb (Saff ) @0.2 % application twice wherein there was reduction of disease 23.32 %. Carbendazim @ 0.1% spraying twice also minimized (26.66%) button dropping of arecanut. However, Copper oxychloride @ 0.3% twice (35.55 %) and Potassium phosphonate @ 0.3% (38.88 %) twice were less effective in control of the disease. Maximum disease incidence was recorded in untreated bunches (55.55 per cent).