2nd October 2019


What are the black spots on leaves?

Try this simple cure if your maple tree is infected with a fungus called tar spot. What are those spots on your maple leaves? Tar spot is a fungal disease that causes black tar-like spots on the leaves of red, silver, Norway, sugar and Manitoba maples (but it doesn't seem to affect Japanese maples).

What are the symptoms of leaf spot?

Leaf wilting is a typical symptom of verticilium wilt, caused by the fungal plant pathogens Verticillium albo-atrum and V. dahliae. Common bacterial blight symptoms include brown, necrotic lesions surrounded by a bright yellow halo at the leaf margin or interior of the leaf on bean plants.