NAC554.212. Dip treatment.

     1. The Director will approve a dip treatment:

     (a) For nursery stock with a root ball that is not greater than 12 inches in diameter, does not contain clay and is:

          (1) Balled and covered in burlap;

          (2) Potted; or

          (3) Enclosed in a container;

     (b) If the active ingredient of the pesticide solution used in the dip treatment is chlorpyrifos at a concentration of 64 ounces of active ingredient per 100 gallons of water;

     (c) If the plant is treated with not less than 32 ounces of the active ingredient;

     (d) If the period of submersion is not less than 2 minutes; and

     (e) If, upon removal from the solution, the treated plant is drained in a manner that does not harm the environment.

     2. Pesticide solutions with an active ingredient of chlorpyrifos that may be used in a dip treatment include, without limitation:

     (a) Dursban 4E; and

     (b) Dursban TNP.

     (Added to NAC by St. Quarantine Officer by R080-99, eff. 10-26-99)