Despite the colder start to the year, we are still accumulating growing degree days (GDD). The southern portion of the state is in the prime range, of between 325 and 575 GDDs, for alfalfa weevil feeding and damage. For the northern part of the state, don’t let the lower GDDs give you a false sense of security. Despite lower GDDs, alfalfa weevils may be present. Identifying a problem early gives you a greater opportunity for control, in what always seems to be a hectic spring.
To brush up on your alfalfa weevil scouting procedure, an article was written earlier this year outlining how to scout for alfalfa weevil and can be found here: Alfalfa Weevil Scouting and GDD. There is also a great video resource outlining the process here: Alfalfa Weevil Scouting Video.