Agronomic Crops Insect Scouting

David Owens, Extension Entomologist, owensd@udel.edu

Alfalfa
Now is a good time to start scouting alfalfa fields for alfalfa weevil. Just a reminder that alfalfa weevil thresholds are based on plant height and do not pertain to mixed stands of less than half alfalfa.

Corn
Next week, seedcorn maggots will be active. Fields with any organic matter, heavy residue, and poultry manure that has been incorporated will be the most attractive to flies.