Abstract
The effects of various host and pathogen factors on disease incidence of Botrytis cinerea (Persoon: Fries) in kiwifruit (Actinidia deliciosa var. deliciosa ’Hayward’ (A.Chev.) C. F. Liang et A. R. Ferguson) were studied in artificial inoculation trials. High inoculum levels (≥25 000 spores/stem scar) and addition of yeast extract to spore suspensions significantly increased infection. There was no effect of fruit water potential on disease incidence, but total infection decreased when fruits were harvested later in the season or exposed to a curing treatment (6–24 h at 20°C).
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