Good weed control in transplanted and seeded cole crops requires planning and the use of pretransplant or preemergence herbicide applications.
Preplant incorporate Treflan 4EC at 1 to 1.5 pints per acre, or apply Dacthal at 4 to 7 quarts per acre or Prefar at 4-9 quarts per acre preemergence or posttransplant to control annual grasses and certain broadleaf weeds. Choose Dacthal or Prefar in early spring when soils are cold and wet when Treflan may cause temporary stunting. These herbicides are registered for use only on certain cole crops.
Goal 2XL can be used pretransplant ONLY! Goaltender can be used pretransplant or pastemergence with a 24C Special Local Needs label on certain cole crops in New Jersey and Delaware. Build beds, spray, and transplant through the herbicide barrier. Use Prefar or Dacthal posttransplant for grass control. Treflan or Dual Magnum applied preplant incorporated may increase the risk Goal injury. Do NOT cultivate unless weeds appear. Incorporation of Goal reduces or eliminates the effectiveness of the product for weed control. Goal and Goaltender is registered for use only on certain transpalnted cole crops.
Dual Magnum has a Special Local Needs 24 C label for use on cabbage in New Jersey. Use Dual Magnum at the rate of 0.5 to 1.33 pints per acre, depending on soil type. Apply to weed free soil in transplanted cabbage after transplanting, or to direct seeded cabbage when the seedlings have developed 3 to 4 true leaves. The delayed use in directed seeded cabbage reduces the risk of slight temporary stunting of the crop. Dual controls annual grasses, nightshade species, and galinsoga. Yellow nutsedge will be suppressed or controlled at the rates and use patterns on the Dual Magnum label for cabbage. To obtain a label, an indemnification agreement must be filled out on line agreeing not to hold the manufacturer responsible for crop damage. Obtain a copy of the label and complete the indemnification agreement on the Syngenta website, “farmassist.com”. Register or sign in, and go to “products” on the tool bar, click on “indemnified labels”, and follow the instructions. You must have a copy of the valid label to use Dual Magnum on cabbage!
Consult the Commercial Production Recommendations for rates and additional information.