Why are my leaves turning brown on my pear tree?
Why are my leaves turning brown on my pear tree? Brown, shriveled or black leaves indicate the presence of fire blight, caused by a bacteria that affects apples and roses too. Because there are no good chemical treatments to control fire blight, your best control is to keep your pear tree healthy. What's wrong with my pear trees leaves? European pear rust is a fungal disease of pear trees, causing bright orange spots on the leaves. It also affects junipers, causing perennial canker-like swellings on the branches. What causes branches to turn brown? Brown leaves are often related to over-exposure...