[rohara66]

Originally Posted by Flacker

Spray won't do anything, as it is a contact insecticide, and they are protected by being inside the leaves.

I hired an arborist, was just over $100, charged per inch diameter of the tree. They drill small holes around the trunk, inject the insecticide (I also got them to fertilize to help speed recovery), then they plug the holes with small dowels. This effectively makes the leaves poisonous to insects, which will kill any insects that eat them. This has no impact on animals that may eat the leaves or larvae. Within a couple of days all of them were dead, and the tree is starting to sprout new healthy growth.

Had one guy try and sell me on spraying insecticidal soap, don't do this, they will spray multiple times (charging you each time), and they may or may not kill the leaf miner.

The systematic insecticide is good for the year, and the fertilizer is good for two. I will likely get them to reapply the insecticide May next year to be sure they are gone.

Can you PM the name of who you used.... my tree is looking rough.