Identification
Carrot beetles infest flowers such as dahlia, iris, lily, and sunflower. Adults are reddish brown, 1/2-inch long, and feed both above and below ground. Larvae are up to 1-1/4 inches long, white to bluish, and have a dark head.
Damage
Foliage yellows and wilts. Plants may be stunted, fall over, or die from root-feeding beetles. The basal stems or leaves may be chewed.
Solutions
Exclude adults, which fly at night to lights. Eliminate decaying vegetation that harbors adults around plants.
The pesticide information on this page may become out of date as products and active ingredients change or become unavailable. Some of the pesticides listed are only available for use by licensed pesticide applicators. No endorsements of named products are intended, nor is criticism implied of products not mentioned.
