Efficacy of 4 fungicides for the control of post harvest diseases on mango fruits.
Hu MeiJiao, Guo LiJia, Liu YanXia, Liu YanXia, Yang FengZhen
Author Affiliation: Institute of Environment and Plant Protection, Chinese Academy of Tropical Agriculture, Danzhou 571737, Hainan China.
Plant Protection 31 : 77-80
Abstract : The inhibitions of 4 fungicides on Colletotrichum gloeosporioides [Glomerella cingulata] and Botryodiplodia theobromae were determined in an experiment by growth rate method. The fungicide iprodione had the highest virulence against C. gloeosporioides with EC50 and EC75 of 0.12 and 0.27µg/ml, respectively. However, the effects of 25.5% iprodione, 45% prochloraz, 16% prochloraz iprodione, and 50% thiabendazole SC were not significant on B. theobromae, and the 25.5% iprodione had the EC50 and EC75 of 0.35 and 0.82µg/ml. In test of post harvest control the fruits of Mangifera indica were dipped in 16% prochloraz iprodione at 267µg/ml for 3-5 min in storage of 15 days resulted in the highest efficiency of 91.07%. Four fungicides had definite inhibitory effects on B. theobromae, but only iprodione at 1250µg/ml dipping the fruits for 1 min had higher control efficiency than that of the control against the pathogen.