Mark VanGessel, Extension Weed Specialist; mjv@udel.edu Over the next few days, be cautious when selecting adjuvants. We have had weather that has resulted in thin cuticle layers on the plant leaves. Overcast skies and high rainfalls does not trigger plants… Continue Reading
David Owens, Extension Entomologist, owensd@udel.edu A question came in this week on best products for grasshopper management. In 2018, Bill Cissel, Joe Deidesheimer, and I tested Prevathon, Sniper and Lorsban. We got great and equivalent grasshopper control from all three… Continue Reading
David Owens, Extension Entomologist, owensd@udel.edu Alfalfa Potato leafhopper counts from this week were a good bit higher than two weeks ago. Scout short alfalfa now for leafhopper. In our management guide, there is a threshold table relating leafhopper count, size… Continue Reading
David Owens, Extension Entomologist, owensd@udel.edu Vineyards Grape root borer will soon begin emerging from the soil. In previous years we have found them in mid-July. Now is a good time to deploy monitoring traps and mating disruption dispensers (available from… Continue Reading
David Owens, Extension Entomologist, owensd@udel.edu Sweet Corn Pheromone trap counts are going down quickly, and this might indicate a field could be on a 4-day spray schedule. However, blacklight traps still seem to be catching a large number of moths… Continue Reading
