WAC 16-481-030   Conditions governing shipments -- External.  (1) Each shipment of grapevines, grape rootstock and/or softwood cuttings from an infested area must be accompanied by a certificate issued by the plant protection organization in the state or country of origin stating that:

     (a) The grapevines, rootstock and/or softwood cuttings were grown in and shipped from an area known to be free from grape phylloxera and vine mealybug; or

     (b) The grapevines, rootstock or softwood cuttings were grown under an approved sterile media system; or

     (c) For small shipments (five hundred articles or less), softwood cuttings were carefully inspected by an authorized inspector and were found to be free from grape phylloxera and vine mealybug; or

     (d) The grapevines, rootstock, and/or softwood cuttings were subject to one of the two treatments outlined in subsection (2) of this section or such additional methods as may be determined to be effective and are approved in writing by the director and were stored in a manner after treatment that would prevent reinfestation.

     (2) Acceptable treatments shall include:

     (a) Hot water treatment. Dormant, rooted grapevines or rootstock shall be washed to remove all soil or other propagative media. Dormant rooted plants or rootstock shall be immersed in a hot water bath for a period of not less than three minutes nor more than five minutes at a temperature of not less than 125 degrees F. (52 degrees C.) nor more than 130 degrees F. (55 degrees C.) at any time during immersion; or

     (b) Methyl bromide fumigation. Grapevines, rootstock or softwood cuttings may be treated by methyl bromide fumigation. Fumigation shall be in an approved gastight fumigation chamber, equipped with a heating unit, fan for dispersal of gas and clearing the chamber of gas after fumigation, and interior thermometer readable from the outside. Fumigation shall be with a dosage of two pounds (0.908 kg.) of methyl bromide per one thousand cubic feet (twenty-eight cubic meters) for a period of three hours at a temperature of between 65 degrees F. (18.3 degrees C.) and 70 degrees F. (21.1 degrees C.). The fan shall be operated for a period of ten minutes after the injection of the gas.

     (3) All shipments of grapevines, rootstock and/or softwood cuttings from an infested area shall be plainly marked with the contents on the outside of the package or container as "grapevines," "grape rootstock," or "grape cuttings."

     (4) Notification requirements of WAC 16-481-060 are met.



[Statutory Authority: Chapters 15.13, 17.24, and 34.05 RCW. 04-17-035, § 16-481-030, filed 8/10/04, effective 9/10/04. Statutory Authority: Chapters 15.13 and 17.24 RCW. 91-21-042, § 16-481-030, filed 10/11/91, effective 11/11/91; Order 384, § 3, effective 3/30/43.]