Resistance of mango pathogens to fungicides used to control postharvest diseases.
Spalding D. H.
Author Affiliation: USDA, Subtropical Hort. Res. Unit, Miami, Fla., USA.
Plant Disease 66 : 1185-1186
Abstract : Isolates of Colletotrichum gloeosporioides [Glomerella cingulata], Diplodia natalensis [Botryodiplodia theobromae] and Phomopsis citri [Diaporthe citri] showed resistance to benomyl. Cross-resistance of the three fungi was shown between benomyl, thiabendazole and thiophanate-methyl fungicides but not to imazalil and CGA-64251 in in vitro and in vivo tests. CGA-64251 was the most effective fungicide tested for control of postharvest decay of Tommy Atkins and Keitt mangoes.ADDITIONAL ABSTRACT:Isolates of Colletotrichum gloeosporioides [Glomerella cingulata], Diplodia natalensis [Botryodiplodia theobromae] and Phomopsis [Diaporthe] citri were tolerant of benomyl. Cross-tolerance was shown between benomyl, thiabendazole and thiophanate-methyl fungicides but not imazalil and CGA 64251 [etaconazole] in vitro and in vivo. CGA 64251 was the most effective for control of post-harvest decay of Tommy Atkins and Keitt mangoes.