Looks like whatever was nibbling went right along the "ribs" of the bud, and … Talk to your local extension agent or Master Gardener group to try to ID the bug and the best way to deal with that pest. Slugs and snails are also common pests of clematis leaves. If the young leaves appear distorted or torn and are full of small, brown-edged holes then the likely culprits may be capsid bugs. I don't see anything on them, such as bugs. More. I assume it's snails! Two out of 7 evergreen clematis has been died, I would like to find out the cause before I replant another new plant this year. My sweet autumn clematis is right in the middle of my garden (and my chocolate mint, that I use daily) so I do not want to use anything that will compromise the good bugs or my health. Compare clematis with roses for example and it quickly becomes clear that pound for pound, clematis come out winners every time! Mark unread; Skip to new; Mark unread Print Skip to new. When we bought the house we had a bit of a problem with them. I have my clematis planted so it get the south sun all day. The first rule is to keep the plants healthy and vigorous. This means pruning them each year and keeping their root system moist especially in their first two years. I have planted two clematis and they are being eaten, one has had almost a whole flower eaten (there were only two and they were big and beautiful :( )and the other has several holes in it's leaves. I wonder there are any bugs which would eat their leaves and/or roots of clematis? But to my dismay, I've seen two buds that have holes chewed in them. My clematis(es) are pretty bug free, even Japanese beetles leave them alone. Once you are able to learn the signs of common lawn and garden pests, you’ll be able to know what kind of pest you're up against and how to stop bug eating plants leaves. CLEMATIS PESTS AND DISEASES Clematis are remarkably free from pests and diseases. At least I now have a name for this new pest and know that … Learn the signs of what bug is eating at your plants. Something is eating the leaves on it. A number of insect pests will feed on clematis leaves and damage them, including earwigs and the caterpillars of various moths. Watch Reply. Their existence is fragile enough these days. If leaves have holes or chunks missing, most likely bugs. What's eating my clematis buds? My 3 clematis plants are loaded with buds, and one has ju-u-ust started to open. My neighbor is also a beekeeper and I definitely do not want to do anything that might harm his bees. Cheryl_103 Pittsburgh, PA(Zone 6a) May 17, 2006. To learn how to stop insects eating plant leaves, recognize that every bug biting plants leaves telltale signs.