New Zealand Plant Protection 58 (2005): 89-95
Testing efficacy of fungicides against postharvest pathogens of avocado (Persea americana cv. Hass)
K.R. Everett, S.G. Owen and J.G.M. Cutting
ABSTRACT
Currently there are only three fungicides registered for use on avocado. Two of these (copper and benomyl) are for orchard use and one (prochloraz) is for postharvest use. Benomyl has now been withdrawn from sale. To test whether on-orchard control of rots could be improved, some fungicides not currently registered for avocados were screened for inhibition of spore germination and mycelial growth in the laboratory. Fungicides tested were azoxystrobin, benomyl, captan, copper hydroxide, fluazinam, kresoxim-methyl, prochloraz, pyrimethanil and trifl oxystrobin. On the basis of these results, azoxystrobin, benomyl, copper hydroxide, fluazinam, kresoxim-methyl and prochloraz were selected for further efficacy testing on the orchard. Carbendazim was also tested in the field as a replacement for benomyl. Copper hydroxide gave best rot control followed by azoxystrobin and carbendazim.
Keywords: avocado, fungicide, orchard, spray, efficacy.
 | Field testing alternatives to copper for controlling avocado fruit rots K.R. Everett, O.E. Timudo-torrevilla, G.N. Hill and T.E. Dawson (2008) New Zealand Plant Protection 61: 65-69 |
| In vitro fungicide testing for control of avocado fruit rots K.R. Everett and O.E. Timudo-Torrevilla (2007) New Zealand Plant Protection 60: 99-103 |
| Postharvest fruit rots of avocado are reduced by benomyl applications during flowering K.R. Everett, P.S. Stevens and J.G.M. Cutting (1999) Proceedings of the NZ Plant Protection Conference 52: 153-156 |
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