Mountain Laurel Leaf Spot Treatment

Apply first fungicide spray to leaves to suppress leaf spot 1. If your laurel s foliage has spots the likely culprit is a fungal disease like leaf spot.

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Mountain laurel leaf spot treatment

Cercospora leaf spot generally is not a serious disease of mountain laurel. Fungus often source of leaf spots on mountain laurel. The disease can be distinguished from other leaf spots by the larger circular brown lesions that often develop a zonate pattern.

Rake up and remove dropped leaves because the fungus can remain active in dead leaves. Early spring apply fungicide soil treatment on plants with phytophthora root rot. These mountain laurel leaves are infected with leaf spot which is caused by the fungus mycosphaerella colorata phyllosticta kalmicola and is characterized by round to irregular grayish white to silvery spots.

Cercospora leaf spot cercospora spp. However in years with a cool rainy spring cercospora leaf spot can be a disfiguring disease problem. When a mountain laurel develops chlorosis its leaves begin to yellow.

Treat it by lowering the soil ph or using an iron chelating compound. There are at least a dozen fungal pathogens that cause leaf spot and to be really sure which one you may have you would have to have the diseased area tested by a laboratory. Identifying what is making your mountain laurel sick means examining its symptoms.

Leaf spots are usually red in color and start small but they may enlarge and coalesce to cover large areas of the leaf surface. To prevent leaf spot keep the area surrounding your shrub sanitized and raked clean of all leaves. Dark brown pimple like fruiting structures are scattered within the spot.

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