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For non-selective applications.

  1. Buy a gallon of mayonnaise at Costco.
  2. Make a lot of macaroni salad or potato salad.
  3. Wash the jar.
  4. Drill holes in the lid.
  5. Make sure the  jar is dry inside.
  6. Poor in the kill-everything-dead granules.
  7. Put the lid back on.
  8. Sprinkle on your long gravel driveway.