Southern Wisconsin Times

Maple trees, known for their syrup production, are susceptible to various diseases that can impact their health. While these trees are generally hardy, they require proper care to prevent illnesses. Blain’s Farm & Fleet provides guidance on identifying and preventing common maple tree diseases.

Tar spot is a recognizable fungal disease affecting maple leaves with large black spots resembling tar drops. It thrives in wet conditions when infected leaves are left around the tree. "Fortunately, tar spot is mainly cosmetic and rarely harms the tree’s long-term health," advises Blain's Farm & Fleet. Raking and disposing of fallen leaves can help prevent this disease.

Maple wilt or verticillium wilt is more severe, causing scorched leaves and dark streaks beneath the bark. Stressful conditions like drought can increase susceptibility. Consultation with local county extension offices is recommended if symptoms appear since most affected trees die within one to two years.

Anthracnose presents as purplish-brown spots along leaf veins and may cause early leaf loss. It often appears after wet winters. Regular leaf cleanup and potential fungicide treatments from an arborist can manage outbreaks.

Sapstreak affects sugar maples by stunting growth at the crown and ultimately killing the tree. Infected trees should be removed promptly to prevent spread by insects.

Preventative measures include cleaning up fallen leaves, regular pruning during dormant seasons, consistent watering and fertilizing, applying mulch for moisture retention, regular inspections for disease symptoms, and consulting professionals when necessary.

"Prevention is always better than cure when it comes to controlling maple tree diseases," emphasizes Blain's Farm & Fleet. With vigilant care, maple trees can remain healthy for many years.