Plants infested in the fall may die. Spring-infested wheat often lodges or has heads that are reduced in size. The fly survives between wheat crops in the pupal or flaxseed stage. Four to five generations per year occur in the South. The best way to avoid losses to the Hessian fly is to plant resistant varieties.
Fall armyworms are sometimes a problem in wheat production in the fall before frost.
Spray armyworms when 2 to 3 worms per linear row-foot are present and damage is observed. Aphids are sometimes a problem in wheat production-either in the fall before frost or in March and April. There are four aphids commonly occurring on wheat in Alabama. Aphids by themselves rarely cause economic problems to Alabama wheat. Occasionally one type of aphid, the greenbug, causes the wheat plant to turn yellow.