Alfalfa weevil control in Missouri

Abstract

"In recent years, alfalfa weevil larvae caused moderate to heavy damage to the first cutting of alfalfa over the entire state. Adults and late developing larvae also caused heavy damage to regrowth following removal of the first cutting and often resulted in loss of the second cutting. Furthermore, yields oflater cuttings were reduced if weevils were allowed to severely damage first cutting and significantly reduce plant vigor. Acreage of alfalfa and alfalfa-grass mixtures in Missouri, now about650,000, continues to increase."--First page.