Our red is tree seems
To be being eaten by something. The leaves are dying one by one. We do not see any insects on the leaves? What should we do?
There are a number of caterpillars that find redbud leaves a tasty treat. This link gives a list of potential pests.You mention that you do not see any insects feeding on the leaves. Have you gone out at night and checked the underside of the leaves?
There are also a number of fungal leaf spot diseases which could cause the cause the brown necrotic spots you see in your leaves. Cercospora leaf spot causes round or angled gray to brown spots of varying sizes on the leaves which could cause the leaf to turn totally brown and drop off. The disease rarely kills the plant, but if it is severe, it can reduce overall plant vigor by repeated defoliation
My suggestion would be to take a few leaves to your local garden center. Maybe they had a number of homeowners asking a similar question. You might also wish to call in a certified arborist for an assessment. To find a certified professional arborist to help you with a tree problem, visit the International Society of Arboriculture’s searchable database here.
Good Luck with your redbud
July 1, 2022