When should I treat for anthracnose?
If treated at all, at bud break — but raking and binning fallen leaves does more than spraying.
Why timing decides it
Almost never fatal on an established tree. It looks alarming, the tree defoliates, and then it leafs back out. Most calls about it don't need a treatment at all.
Indiana specifics
Very common here in wet springs, particularly on sycamore. One of the most over-treated problems in the trade.
Related
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