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Last updated on April 19, 2014 at 17:21 EDT

Latest Liriodendron tulipifera Stories

2007-09-15 06:00:55

By Richard Nunnally, Richmond Times-Dispatch, Va. Sep. 15--Q:I grow tomatoes every year and find those big green worms on them. Some have white lumps on their backs. I've heard they are some kind of eggs. Is that true? If so, are they harmful? Answer: The worms you're seeing are tomato hornworms. They are common and enjoy eating the leaves of tomato plants. The white lumps are the egg cases for a parasitic wasp. This wasp stings the worm and deposits its eggs on the worm's back. As the...