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Postharvest rots of avocados : improved chemical control by using different application methods.

Everett, K. R.; Korsten, L.;

Proceedings of the Forty Ninth New Zealand Plant Protection Conference, Quality Hotel Rutherford, Nelson, New Zealand, 13-15 August, 1996. Year: 1996 Pages: 37-40 Ref: 8 ref.

1996

บทคัดย่อ

Postharvest rots of avocados : improved chemical control by using different application methods.

Four methods of applying prochloraz to 'Fuerte' avocados postharvest were compared. These were: dipping, with and without a subsequent coating with polyethylene wax, ultra-low volume spray application followed by wax, and applying in wax. Prochloraz reduced rots, caused by Colletotrichum, Botryosphaeria, Fusicoccum, Fusarium and Phomopsis, best when applied as an ultra-low volume spray followed by waxing. It was also very effective when applied in wax. Dipping fruit in prochloraz increased the incidence of some types of rots. Waxing fruit without a prochloraz treatment reduced the incidence of internal and external stem end rots. This suggests that wax prevented stem end rot fungi from gaining entry to the fruit during packing.