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Home → Publications → Seed and Seedling Diseases in the Western US → Fungicide Trials to Control Botrytis Blight at Nurseries in Idaho and Montana

Fungicide Trials to Control Botrytis Blight at Nurseries in Idaho and Montana

Iprodione, chlorothalonil, and captan adequately controlled Botrytis blight of containerized western larch and lodgepole pine seedlings. Less satisfactory results were obtained with benomyl and dicloran. Vinclozolin caused severe phytotoxicity to young containerized western larch seedlings but not to 2-0 bareroot seedlings. All fungicides tested reduced height growth of conifer seedlings.


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Author(s): USDA Forest Service