科研之友
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摘要
Four management programs for the control of peach brown rot to be recommended for integrated production systems in Brazil were tested. The control of Monilinia fructicola was assessed for programs using biological control with the plant pathogenic fungus Trichothecium roseum, fungicides and phosphites. The latent infection rates of M. fructicola on flowers and immature fruit, in addition to the brown rot incidence at harvest and postharvest, were quantified for two experimental years. All of the tested treatments reduced the incidence of peach brown rot in the 2003/04 season. However, during the following season, when the inoculum pressure was greater, the chemical treatment (alternating iprodione, azoxystrobin, tebuconazole, mancozeb and captan) and the integrated 1 treatment (alternating T. roseum and Ca and K phosphites plus captan) were more efficient at reducing disease incidence in comparison with the biological treatment alone (T. roseum at 106 conidia/ml) and integrated 2 treatment (T. roseum and captan). In conclusion, T. roseum applied at blooming and preharvest, when combined with captan plus phosphites applied during the fruit development period provide brown rot control at a level equivalent to fungicidal program and can be recommended to integrated production systems.
- 出版日期2014-5
