River Birch leaves eaten

Asked July 1, 2020, 7:03 PM EDT

My River Birch trees have been partially defoliated this year. The leaves show holes in the middle and are chewed along the edges. I cannot find the actual insect or caterpillars on the leaves, but have seen some white spots on some leaves and did see a few ladybugs. I have lost one trunk on one of three trees. Is there a way to treat it so I don’t lose more?

Kent County Michigan

1 Response

You could apply an insecticide in the evening so you are less likely to affect any bees. These are tall trees so you may want to consult a certified arborist. You can find one in your area by searching on the site treesaregood.com. You also may want to see if there, are Japanese beetles around your trees.