David Owens, Extension Entomologist, owensd@udel.edu With a worsening drought, any small grains that are up, are at risk from aphid damage and from winter grain mite. Fall aphid treatments are primarily aimed at preventing barley yellow dwarf, but this year… Continue Reading
David Owens, Extension Entomologist, owensd@udel.edu Winter grain mites are active in small grain fields. These mites prefer cool weather with temperatures of 40-60°F. They hide once the sun comes up, so you will need to look for them first thing… Continue Reading
Joanne Whalen, Extension IPM Specialist; jwhalen@udel.edu Alfalfa Alfalfa Weevil: We are starting to see the first hatch of alfalfa weevil eggs. As soon as the weather begins to warm up, you should begin to sample for larvae on a weekly… Continue Reading
Joanne Whalen, Extension IPM Specialist; jwhalen@udel.edu Alfalfa Be sure to watch for economic levels of alfalfa weevil and pea aphids. When sampling for aphids and weevils, collect a minimum of 30 random stems throughout a field and place them top… Continue Reading
Joanne Whalen, Extension IPM Specialist; jwhalen@udel.edu Alfalfa Be sure to watch for economic levels of alfalfa weevil and pea aphids. When sampling for aphids and weevils, collect a minimum of 30 random stems throughout a field and place them top… Continue Reading
