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Grass Killer Post-Emergent Herbicide

(2 customer reviews)


  • Keep your onions from competing with grass!
  • Order 2 or more for just $30.75 each!


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Keep hard-to-kill grasses out of your onion patch! Grass Killer takes care of most perennial grasses up to 1 foot high. Active ingredient is a product called Poast which is what we spray all our crops to kill grass that has emerged. This product works best on younger, actively growing seedlings. Well established grasses may require additional applications. Works on many types of grasses.

To use: Apply to established grasses. Mix 2 Tbsp. to one gallon of water. Use an oil such as vegetable oil at rate of 1-2 tsp per gallon of water to help as a surfactant.

Additional information

Weight .8 oz

Free Shipping on all orders! Exclusions apply to AK and HI orders over ten bunches; add $2.00 per bunch over ten bunches or $40 per case for shipping/handling.

PRICING EXAMPLE: 1 bunch Patterson + 1 bunch Sterling = 2 bunches for a total of $24.90. After 30 bunches, the pricing starts over. A 45 bunch order will be priced as a 30 bunch order plus a 15 bunch order ($118.50 + $83.25 = $201.75). *Alaska and Hawaii orders over 10 bunches, add $2.00 per bunch for shipping/handling.

Onion plant case lot discounts apply to single variety cases only (no mixing of varieties in the same box). Cases are field packed with the variety marked on the outside of the box. Multiple cases will be strapped together for shipment. For case lot orders, please include your UPS/FedEx shipping address. No PO Box deliveries, please. *Alaska and Hawaii customers: add $40 per case for additional shipping/handling. If you have any questions about your order, please call us at (830) 876-2430 or email us at customerservice@dixondalefarms.com.

2 reviews for Grass Killer Post-Emergent Herbicide

  1. Bill updyke

    Save your money, mixed 1st batch according to directions, no results, mixed next batch double strength some results, poor results

  2. sfuhrman

    Grass Killer Post-Emergent Herbicide works great. I used it last year for the first time and I didn’t have to pull grass out of my onions. It is slow working but the hotter the weather the better it works.

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