I had purchased 3hibiscus plants 2 years ago and have been successful growing them, however I am concerned about the holes that keep appearing on the leaves. Can n you help me with an answer?
Baltimore County Maryland
This may be (or have been) a type of sawfly larvae. (They'd look like a wormy caterpillar, but aren't). Look under the leaves carefully and hand pick any you find. You can put them in a container of soapy water.
If you only have a few holes, you are o.k.. They will continue to push out new ones.