|What pest would skeletonize the leaves on a hollyhock. The plants are still blooming but all the leaves are almost gone. We've sprayed and then looked for dead ones but never find anything.|
|Skeletonized leaves are usually the work of young catapillars, before they grow large enough to eat the entire leaf.
Look under the leaves for them. You may see a flattened, slug-like creature feeding there. Some insects are most active at night, so if you can't find them in the daytime, do a Sherlock Holmes investigation with a flashlight at nite!
If you find catapillars, sprays with B.t. as the ingredient are a safe, organic control option. These are available in many brand names.
Good luck with the investigation!