The Q&A Archives: Pest Control

Question: I found a worm on one of my zinnas, but only after he had eaten every leaf on the plant. I started the plants from seeds and they are beautiful, but I would like to keep the worms away. Can you suggest something to spray on my zinnas to keep the worms away?

Answer: One of the best products for controlling caterpillars and worms is Bt (bacillus thuringeinsis), sold as Dipel or Thuricide. This bacterium affects only caterpillars and does not harm beneficial insects, wildlife, people or pets. Be sure to apply according to label directions. Best wishes with your zinnias.

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