Grain sorghum producers should be vigilant in scouting for armyworms in the coming weeks as the crop heads out, warn Texas A&M AgriLife Extension Service experts.

“The second-generation trap counts showed they were very high,” Dr. Calvin Trostle, AgriLife Extension agronomist, Lubbock, Texas, said in a news release. “Compared to 2011, which was considered a bad year, they were even higher in July.”

Dr. Pat Porter, AgriLife Extension entomologist at Lubbock, has continued to report large numbers of both armyworm moths and larvae throughout the region, Trostle says. The situation requires even more attention in late August as sorghum heads mature, according to the release.

“Once sorghum heads out, the worms are going to go there and feed on the head, and that’s where the real economic damage occurs,” Trostle said in the release. “Normally, we recommend scouting once a week, but with the counts so high, I’d suggest farmers scout more often, perhaps every five days.”