Mark VanGessel, Extension Weed Specialist; mjv@udel.edu Planting any summer crop without a preemergence herbicide is a real risky proposition. Preemergence herbicides should be used in almost all situations. But what type of preemergence herbicide program should you use? A number… Continue Reading
Mark VanGessel, Extension Weed Specialist; mjv@udel.edu A few weeks ago, I wrote about lack of rain to activate herbicides, now I am being asked about how much herbicide is left after the big rains. Many areas of the state received… Continue Reading
Mark VanGessel, Extension Weed Specialist; mjv@udel.edu The local weather forecast does not look favorable for rain. Here are some thoughts on what that could mean weed control. If you have irrigation and your preemergence herbicides have not had water to… Continue Reading
Mark VanGessel, Extension Weed Specialist; mjv@udel.edu We all want our herbicides to work NOW and to be 100% effective. As the old saying goes, you can have it done fast, effective, or cheap/convenient – pick two because all three are… Continue Reading
Mark VanGessel, Extension Weed Specialist; mjv@udel.edu We have had conditions that have resulted in a lot of tender plants. Specifically, prolonged periods of overcast skies, cooler weather, and plenty of rain. If postemergence herbicides are made as the days turn… Continue Reading
