How To Help Horse Chestnut Tree?

Question

Our horse chestnut, purchased and planted 13 mo. ago has leaf spots, but not really like the leaf blotch pictures I’ve seen. What is this and how do we help our tree become healthy? It began almost immediately after we first planted it and we thought it could’ve been transplant shock, even though it was in a implantable container. Now it has the same spots this year. Thanks for any advice you can give. Jilayne

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Answer 1

This appears to be a severe algal leaf spot infection. Though it has a tendency to infect certain tree species, it is not limited to these.

Here is an article that will help:

https://www.gardeningknowhow.com/plant-problems/disease/algal-leaf-spot-control.htm