Pest on Rose Stem
Sun, Feb 8, 2009 at 5:49 PM
Hello! My sister-in-law gave me this segment of a stem from her rose bush growing in California’s central valley in hopes I could identify it. Can you please hekp me? I realize the photo isn’t very good but I am reluctant to take the stem out of the baggy for fear of further spreading whatever the pest is. Thanks so much!
San Joaquin Valley, California
These are Katydid Eggs, and though Katydids eat the leaves from plants including roses, we have a difficult time considering them to be plant pests. They do not do any lasting damage to the plant and they do not spread diseases. Katydids are attractive grasshopper-like insects that are generally green, which camouflages them against the leaves they feed upon. Occasionally we find Katydids eating the blossoms of our roses, but we never kill the insects. At most, we relocate them to another plant. Adult Katydids are sometimes attracted to lights, and many species are among our most “vocal” insects, producing mating calls by a method known as stridulation. We are uncertain which species of Katydid produced the eggs in your photograph.
Thank you so much!
I have given them back to Daisy and she plans to put them back in her garden and watch them hatch.
I have a fear of bugs and I LOVE your website because you not only educate us (and fear is usually a reaction to what is not known) but also encourage a non-lethal way of dealing with them. You are doing a wonderful service with your ‘art project’!