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Plant stems hollowed out by caterpillars

azureus
18 years ago

Has anyone ever heard of this? Some of my tomato plants have been snapping in half--I thought it was our high winds. Today, I realized that the affected plants are hollow. I finally found a small, black-headed caterpillar in one plant. I thoughtlessly crushed it to jelly, or I'd post a picture of the culprit. Can anyone tell me what this is, and what the remedy is? Would collars around the plants help? I've never had this kind of problem before.

Thanks,

April

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