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Invasive Weeds in Our Fields

posted Oct 13, 2014, 6:34 AM by Bob Whitney   [ updated Oct 13, 2014, 6:34 AM ]
    The picture below is just one of the most invasive weeds we have in our fields today. Field bindweed, Horsenettle, and Silver Leaf Nightshade are all summer perennial weeds with extensive root systems. Over time they become established in fields and our typical weed control herbicides only burn back the tops leaving the roots to re-sprout again. Ideally, weeds like this are sprayed in the fall as they are moving energy into roots but unfortunately that is usually the time we are planting small grain
s.
    This summer several customers decided they needed to get these weeds under control and gave us a chance to try. We used 3 quarts per acre of glyphosate (Roundup) along with a very good surfactant when the weeds were blooming. The treatment took a long time to work but it did work and planting small grains was easy this fall. Next year there will be seedlings that will come back but they are much easier to control with conventional broadleaf chemicals.