Beet armyworm (Spodoptera exigua)
Bertha armyworm (Mamestra configurata)
Western yellowstriped armyworm (Spodoptera praefica)
Black cutworm (Agrotis ipsilon)
Variegated cutworm (Peridroma saucia)
Pest description and crop damage Dark or various-color moth larvae that damage roots and bulbs by feeding.
- azadirachtin (Neemix 4.5) at 4 to 16 fl oz/a (0.012 to 0.049 lb ai/a) for armyworm. For cutworm (Neemix 4.5) at 5 to 16 fl oz/a (0.015 to 0.049 lb ai/a). PHI 0 days. REI 4 hr. In most cases, apply at high rate. Effective on larval or immature stages only. This botanical pesticide acts slowly. Repeat in 7 to 10 days as needed. Spray early and check for effect. Some formulations are OMRI-listed for organic production.