2/1/2024 0 Comments Download army worms in lawnOn tall, unmowed turf, fall armyworms are obvious when feeding on foliage during the day (Figure 1). They are most active on turf in early morning or late afternoon/early evening, but they may feed any time of the day. Biologyįall armyworm caterpillars damage grass by chewing plant tissue. Fall armyworms also attack fescue, ryegrass, bluegrass, and bentgrass. They attack a variety of plants, including turfgrasses but seem to prefer well-fertilized and maintained bermudagrasses. The fall armyworm has been an annual pest on crops in the Southeast for more than 100 years. Most armyworms are large caterpillars with long stripes lengthwise on the body and some type of netlike pattern on the head. They often feed openly and conspicuously, sometimes during the day, making themselves relatively easy to spot. Armyworms are most notably seen “marching” in large numbers across lawns.
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