Alfalfa Weevil Damage – The Next Step

Alfalfa weevils were very damaging in some fields this year (Figure 1). While individual larvae only feed for about 3 weeks, a wide window for egg hatch this year resulted in an extended season. Unfortunately, some additional damage occurred when larvae pupated and adults emerged. If your stand was weakened by weevils this spring before spraying or before your first cutting, then a delayed second cutting will help rebuild root carbohydrates to maintain a healthy stand. The same is true if you experienced significant frost damage this spring. ~Dr. Lee Townsend via Kentucky Pest News


Figure 1. Undamaged weeds are the only green foliage in this alfalfa field following major weevil feeding (M. Baxter).