Fall is approaching quickly and so are one of small grain crops' worst enemies. Fall armyworms pose a monstrous threat to Texas pastures and grain crops each year, but entomologists say this year's conditions may be especially favorable for the ravenous larvae. Fall armyworms can cause serious damage in one to two days before the damage is even noticed. The larvae attack small grains in large numbers and devour all plant material in their path. Texas Agricultural Extension entomologist Clifford Hoelscher says early detection and preventative measures are essential for successful small grains crops this season.
Early detection is key because small larvae are much easier to control than large larvae.
Producers should also look at getting some protection with insecticides before plant stands are killed or greatly reduced. The fall armyworm is a pest that strikes during late summer and early fall. The larvae feed mainly at night on plant foliage, and on cloudy days, one may observe them feeding. Hoelscher said the larvae hide just under the surface of the soil in bright sunlight and feed on the growing parts of the plants. Though many assume that a preventative pesticide treatment will remedy the problem, Hoelscher suggests other tactics.