Q.Horse Chestnut Tree
Is there any way to keep a horse chestnut tree from producing nuts? They make a mess all over my lawn.

Certified GKH Gardening Expert
This article will help you:
https://www.gardeningknowhow.com/ornamental/trees/tgen/fruit-tree-sterilization.htm
There are some sprays available to prevent ornamental trees from fruiting as well. However, what exactly is available varies by state, and results may vary by tree species, so check at a local gardening store or with a local university extension agent for your options.