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Kevin from Long Branch, Nj writes

Can you use Bonide Mancozeb Flowable with Zinc Concentrate for leaf blotch on horse chestnuts?

Answer:

Bonide Mancozeb Flowable with Zinc Concentrate is not labeled to treat for leaf blotch. We would recommend using a product such as Garden Tech Daconil Fungicide Concentrate which is specifically labeled for leaf blotch. You will mix 2 1/4 tsp per gallon of water or 3 tbsp per 4 gallons of water, and spray foliage to the point of runoff. You want to apply this as spring bud break for the best results.

Answer last updated on: 03/27/2017

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