Pale green turning yellow when grown, with a dark green stripe bordered by white stripes down the back. Up to 3/4 inch long.
Common Host Plant(s)
Eats holes in leaves and stalks. Rolls and folds leaves, ties them together with webs.
Throughout United States.
At five different locations in planting inspect 20 plants for larvae on a weekly basis. If more than 4 weeks before harvest and there are 2 or more larvae per 100 plants, treatment is warranted.
Harvest early and plow under all crop refuse afterward.
For celery, make two applications of pyrethrum dust 1 hour apart. The first application should drive tiers from their webs and the second should kill them.
No known chemical control for celery leaftier.
Foster, Rick and Brian Flood. 1995. Vegetable Insect Management, Meister Publishing Company, Willoughby, Ohio. p. 128.
Virginia Cooperative Extension materials are available for public use, reprint, or citation without further permission, provided the use includes credit to the author and to Virginia Cooperative Extension, Virginia Tech, and Virginia State University.
Issued in furtherance of Cooperative Extension work, Virginia Polytechnic Institute and State University, Virginia State University, and the U.S. Department of Agriculture cooperating. Edwin J. Jones, Director, Virginia Cooperative Extension, Virginia Tech, Blacksburg; M. Ray McKinnie, Administrator, 1890 Extension Program, Virginia State University, Petersburg.
April 25, 2011