Marssonina Leaf and Twig Spot on Willow
Davidson, Roy M., 1939-
Byther, Ralph S.
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This fungal disease affects foliage on many kinds of willow. Although the foliage is unsightly, the growth of the tree is not affected. Good sanitation practices are the only recommended control, though spring fungicide applications against twig blight might offer some control. 2 pages.