Agronomic Crop Insects – April 6, 2012
Joanne Whalen, Extension IPM Specialist; jwhalen@udel.edu Alfalfa Economic levels of pea aphids and alfalfa weevil (http://ag.udel.edu/extension/IPM/ExtensionFactSheets/AlphalfaWeevilIPM-1.pdf) can be found in fields at this time. When sampling for aphids and weevils, collect a minimum of 30 random stems throughout a field… Continue Reading