south dakota, alfalfa, alfalfa weevil control, pest
Alfalfa weevil, Hypera postico (Gyllenhal), is a significant pest of alfalfa in some areas of South Dakota each year. Feeding by larval stages results in reductions in yield and quality of the harvested forage. Although it generally is a problem of first-cutting alfalfa in South Dakota, regrowth of the second crop is occasionally hindered by alfalfa weevil as well.
McLeod, Murdick J.; Twidwell, Edward K.; Gallenberg, Dale J.; and West, John, "Alfalfa Weevil Control in South Dakota" (1994). SDSU Extension Extra Archives. 300.