From the NCSU College of Agriculture and Life Sciences'
NORTH CAROLINA PEST NEWS
Volume 25, Number 18, August 13, 2010
Fall Armyworms in Turf and Pastures
By Steve Bambara and Rick Brandenburg, Extension Entomologists
Despite low numbers being reported in light traps, fall armyworm (Fig. 2) infestations have exploded this week in eastern North Carolina. In turf, some lawns are disappearing overnight. The hot weather seems to be aiding their development. Moths are blown into North Carolina from states farther south each year. Within an area, female moths are attracted by light and lay eggs on anything (usually not the crop). As the eggs hatch and the caterpillars grow, they spread out from that point eating all that they can. Infestations start along a field or lawn edge such as next buildings, or along fences and street lights.
Homeowners can use some product containing bifenthrin (or similar) or Sevin can be applied. It is best to apply in morning or evening. Follow directions for the product used. In severe cases, there may be no time for granules to be rained-in and spray would be recommended. Consider pending weather conditions.
For information on fall armyworms in turf, see the following websites:
• North Carolina Agricultural Chemicals Manual: http://ipm.ncsu.edu/agchem/5-toc.pdf
(see page 187, Table 5-19, Insect Control in Commercial Turf)
• Ornamentals and Turf Insect Information Note No. 128: http://www.ces.ncsu.edu/depts/ent/notes/O&T/lawn/note128/note128.html