Kentucky IPM Pest Information Pages
DamageArmyworms generally appear in Kentucky wheat from mid-April to late May. In wheat, populations reach economic levels in late May and early June. Heavy damage is seen when late instar larvae begin clipping off seed heads. The larvae are most often found in luxuriant or lodged vegetation in low wet areas, and cool, wet springs will favor armyworm development. Armyworms are primarily leaf feeders; however, they will feed on awns and tender kernels. Other hosts of armyworms include corn, bluegrass, oats, rye,and some forages.
Armyworm Activity in Wheat
Please note: These dates are approximations only. This calendar was constructed using data from Kentucky, USA. These dates may not apply in your area. You may wish to contact your county extension agent or agricultural consultant for information tailored to your locality.
This site was created and is maintained by Pat Dillon, Department of Entomology, University of Kentucky, S-225 Agricultural Science Ctr North, Lexington, KY USA 40546-0091 (phone: 859/257-3571). Please send questions or suggestions to: firstname.lastname@example.org