cyprodinil mancozeb (apples) Powdery mildew, This wind/rain transmitted fungal Sanitation: Prune away and destroy infected No treatment threshold found. Podosphaera infection is characterized by a shoots during dormancy or early spring. leucotricha gray-white powdery film, sulfur spots on the leaves and trifloxystrobin stems, which become dry and thiophanate methyl brittle. The leaves will then turn yellow, die and drop off. Infected plants have lower yield and a shortened fruiting season. High relative humidity and warm, shady weather favors disease development. Monilia brown blossom and fruit Fungi overwinter in dead Reduce mechanical wounding of fruit. No treatment threshold found. rot, mummified fruits, releasing spores Sanitation: Removal and destruction of infected Monilia fructigena in the spring at blossom. Infection mummy fruits. propiconazole (apples) leads to collapsed leaves, shoot thiophanate methyl blight, dead flowers and brown pyraclostrobin (apples) mummified fruit. boscalid pyrimethanil cyprodinil Shot-hole disease, The fungus survives in infected Maintain a vigorous plant by properly watering At red bud, full bloom and petal Wilsonomyces buds and twigs. Spores are rain and fertilizing following soil test results. fall, carpophilus (=Stigmina splashed. Disease increases during Sanitation: Prune out dead plant material and carpophila) the rainy season, when fruit and material with lesions and dead buds; Removal copper compounds buds become infected, killing and destruction of infected fruits and leaves. sulfur buds during winter and causing pyraclostrobin spots on fruit and leaves in spring. trifloxystrobin (cherry, peach) Infected spots may die and drop cyprodinil out, causing shot-hole appearance. Leaf drop may occur in spring. Lesions on the upper sides of fruits are light brown with purple margins, which may become
cyprodinil mancozeb (apples) Powdery mildew, Podosphaera leucotricha This wind/rain transmitted fungal infection is characterized by a gray-white powdery film, spots on the leaves and stems, which become dry and brittle. The leaves will then turn yellow, die and drop off. Infected plants have lower yield and a shortened fruiting season. High relative humidity and warm, shady weather favors disease development. Sanitation: Prune away and destroy infected shoots during dormancy or early spring. No treatment threshold found. sulfur trifloxystrobin thiophanate methyl Monilia brown blossom and fruit rot, Monilia fructigena Fungi overwinter in dead mummified fruits, releasing spores in the spring at blossom. Infection leads to collapsed leaves, shoot blight, dead flowers and brown mummified fruit. Reduce mechanical wounding of fruit. Sanitation: Removal and destruction of infected mummy fruits. No treatment threshold found. propiconazole (apples) thiophanate methyl pyraclostrobin (apples) boscalid pyrimethanil cyprodinil Shot-hole disease, Wilsonomyces carpophilus (=Stigmina carpophila) The fungus survives in infected buds and twigs. Spores are rain splashed. Disease increases during the rainy season, when fruit and buds become infected, killing buds during winter and causing spots on fruit and leaves in spring. Infected spots may die and drop out, causing shot-hole appearance. Leaf drop may occur in spring. Lesions on the upper sides of fruits are light brown with purple margins, which may become Maintain a vigorous plant by properly watering and fertilizing following soil test results. Sanitation: Prune out dead plant material and material with lesions and dead buds; Removal and destruction of infected fruits and leaves. At red bud, full bloom and petal fall, copper compounds sulfur pyraclostrobin trifloxystrobin (cherry, peach) cyprodinil
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