This has been a bad year for caterpillars on fruit trees. First came the fall webworms, who ate through leaves like nobody's business. And this month the yellow-necked caterpillars hit one of my dwarf apple trees.
I'm not used to worrying about caterpillars other than cabbageworms, actually. We have so many wild predators
--- like wasps and birds --- that most infestations are gone in short
order. But ignoring the issue didn't make it disappear in either case
this year, so I resorted to hand picking.
As you can see in the
photo to the right, I should have picked a little sooner. I only found
about a dozen caterpillars in our apple tree, but they were all big and
fat after eating about a third of the available leaves. Luckily, the
nibblers died quickly when dropped in a jar of plain water --- problem
solved!