Darren Robinson, Weed Researcher, Ridgetown Campus – University of Guelph
Sandea and Permit are Group 2 herbicides that are taken up by roots and shoots and are systemic in the plant. The herbicides will translocate to the new growing tissues, and if applied to a sensitive crop or weed, it will cause stunting, chlorosis (yellowing) and may even delay maturity of sensitive species. These herbicides are particularly useful for control of preemergence control of common lamb’s-quarters and postemergence control of yellow nutsedge. They have also provided good control of common ragweed and redroot pigweed. The labels should be consulted before use in all cases, and are available at http://www.uap.ca/products/products.htm.