WebJul 26, 2024 · The presence of black or brown spots on your maple tree leaves could be a fungal disease called maple tar spot, or fungal tar spot. This can be caused by a few different types of fungi that overwinter on … WebOccasional scorch will not kill the tree. Ongoing problems, indicate other issues that need to be resolved to avoid decline or death of the plant. Anthracnose is a fungal disease that caused brown spots on the leaves. …
Maple Diseases & Insect Pests Home & Garden …
WebJul 29, 2011 · Mary Wilson, Michigan State University Extension - July 29, 2011. Numerous spots on maple leaves concern homeowners. A common cause is tar spot disease, a cosmetic problem that typically does not … http://www.plantclinic.cornell.edu/factsheets/tarspotofmaple.pdf new pool plaster curing
Maple > Leaves > Spots or blotches on leaves - University of …
WebApr 1, 2024 · It starts with small yellow spots on growing leaves, and by late summer these yellow spots expand into large black blotches that look like tar has been dropped on the leaves. This is because a fungal … Webthe leaves of maples and cause raised, black spots to form on upper leaf surfaces. The diseases are called "tar spots" because their appearance so closely resemble droplets … WebApr 17, 2024 · A pest that can also attack agricultural crops, Potato leafhoppers can be pests of maples in nursery production. Other trees susceptible to damage are apple, … new pool motor