Dave Grafstrom
Save the date! Grass seed production meeting in Roseau
Save the date for the annual Minnesota Turf Seed Council and University of Minnesota Grass Seed Meeting! This year's meeting will be Wednesday, February 26 from 8:30 a.m.
True armyworm moth trapping project in Roseau County
By Dave Grafstrom
In 2020, a widespread outbreak of true armyworm (Mythimna unipuncta), and the subsequent feeding, caused significant damage to perennial ryegrass seed fields in northwest Minnesota. Reported ryegrass seed yield losses ranged from 0 to over 80%. The most severe damage occurred over the July 4th weekend. The majority of the perennial ryegrass fields were sprayed once or twice for armyworms.