ISHS Acta Horticulturae 269: Symposium on Tropical Fruit in International Trade
RECENT DEVELOPMENTS IN THE CHEMICAL CONTROL OF POSTHARVEST DISEASES |
| Author: | J.W. Eckert |
| Abstract:
First generation postharvest fungicides prevented infection of tropical fruits by the wound-pathogens, Penicillium, Rhizopus, Aspergillus, and Ceratocystis. Fungicides developed since 1965, mainly benzimidazoles (thiabendazole, benomyl, and carbendazim) and sterol inhibitors (imazalil, prochloraz, and propiconazole) have given excellent control of anthracnose and stem-end rot on citrus, banana, mango, papaya, pineapple, and avocado. The intensive use of fungicides on citrus fruits has resulted in a serious problem of resistance to all organic fungicides used commercially. Imazalil-resistant biotypes are widely known in California but have not been detected in Florida. Benzimidazole-resistant biotypes of Botryodiplodia and Colletotrichum have been recognized in harvested mangos and bananas treated pre-harvest with this group of fungicides. | |
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