KANSAS STATE UNIVERSITY – Alfalfa weevils have been hatching from eggs in north central Kansas since at least March 13, when we first detected larvae. Since then, again in north central Kansas, the larvae are slowly growing and eggs continue to hatch. However, both alfalfa and larvae are growing slowly so far. Alfalfa weevil development occurs at, or above, temperatures exceeding about 48 degrees F. It is a different situation in south central Kansas, however. Read More