Mark VanGessel, Extension Weed Specialist; mjv@udel.edu There has been a lot of herbicide injury observed this spring, more than most years. There are several reasons for this, with Mother Nature at the top of the list. There is a selectivity… Continue Reading
Gordon Johnson, Extension Vegetable & Fruit Specialist; gcjohn@udel.edu Leaf curling, cupping, and rolling in vegetables can be caused by virus diseases, aphid infestations, herbicides and growth regulators. We are currently finding physiological leaf roll and leaf curling due to exposure… Continue Reading
Mark VanGessel, Extension Weed Specialist; mjv@udel.edu I have seen a lot of herbicide injury on corn this year, more so than the last few years. In the month of May we had a lot of cool weather and overcast days… Continue Reading
Mark VanGessel, Extension Weed Specialist; mjv@udel.edu It’s the time of year when sprayers are used for applying soil-applied herbicides in soybeans then moving back into corn fields to spray postemergence herbicides. Be aware that any herbicide containing flumioxazin (i.e. Valor,… Continue Reading
Mark VanGessel, Extension Weed Specialist; mjv@udel.edu A lot of emerged corn is growing slowly and looking very pale and with some striping. The stripes may be a wide stripe on each side of the midrib or could be multiple thin… Continue Reading
