Pest description and crop damage Dull gray, brown, or black caterpillars that may be striped or spotted. They are active at night and can be found in the soil by day. They cut off young plants at ground level or feed on foliage at night.
- chlorpyrifos (Lorsban Advanced) at 1 qt/a (0.94 lb ai/a). PHI 7 days. REI 24 hr. Do not make more than one application per year. Apply after carrots have started to bolt and when field counts or crop injury indicates that damaging pest populations are developing or present. This product is highly toxic to bees exposed to direct treatment or residues on blooming crops or weeds. Toxic to fish, aquatic invertebrates, small mammals and birds. Do not apply directly to water or to areas where surface water is present. Follow mandated buffer zone restrictions on the label. Do not apply through any type of irrigation system. Follow spray drift and runoff precautions. No portion of treated plants can be used for food or feed. 24c SLNs: OR-090011 (expires 12/31/23), WA-090011 (expires 12/31/21). Oregon and Washington only. RESTRICTED USE IN OREGON.