A worm is eating my zinnias...
Thanks for writing. If the worm is a type of caterpillar (I'm sorry, but I can't identify it without seeing it), there are sprays called Bt that you can use; these are a natural bacterium that attacks and kills caterpillars. You can also try spraying the flowers with neem oil to deter the insects.
---Justin, Senior Garden Editor, BHG.com
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