The Q&A Archives: Problem with black mold on fruit tree leaves.
Question: I have two mature fruit trees side by side. One is a tangerine, the other is an Arizona orange tree. For the last two years, both of them have had a black mold or fungus on the leaves. The orange tree is producing quite a bit of fruit, but the tangerine has only had a few tangerines the last two seasons. Both trees are 8 years old. How can I treat the black mold, and is the fruit safe to eat?
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