WAC 16-230-190   What are the restrictions on the use of desiccants and defoliants in Walla Walla County?  The following restrictions shall apply in Walla Walla County:

     (1) Area 1 description - town of Walla Walla and vicinity: This area includes all lands lying within the town of Walla Walla and vicinity beginning at the Washington-Oregon border and the west section line of Section 15, T6N, R34E; thence north along section lines and McDonald Road approximately seven miles to the southwest corner of Section 3, T7N, R36E; thence east along section lines approximately twenty miles to the southeast corner of Section 1, T7N, R37E; thence south approximately seven miles to the Washington-Oregon border; thence west approximately fifteen miles to point of beginning.

     (2) Area 1 restrictions:

     During the period of February 15 through November 1 of any year, any aerial application of use restricted desiccants and defoliants must have prior approval by obtaining a written permit from the Washington state department of agriculture.

     (3) Area 2 description - southern portion of Walla Walla County: This area includes all lands lying within an area encompassed by a line beginning at the Washington-Oregon border and the west section line of Section 18, T6N, R33E; thence north along section lines approximately eight miles to the northwest corner of Section 7, T7N, R33E; thence west along section lines approximately nine miles to the southeast corner of Section 4, T7N, R34E; thence south along section lines approximately eight miles to the Washington-Oregon border; thence west along the border approximately nine miles to the point of beginning.

     (4) Area 2 restrictions:

     (a) Paraquat restrictions:

     During the period of February 15 through November 1 of any year, any aerial application of Paraquat or any mixture containing Paraquat must have prior approval by obtaining a written permit from the Washington state department of agriculture.

     (b) Diquat restrictions:

     During the period of February 15 through November 1 of any year, any application of Diquat or any mixture containing Diquat is restricted to ground apparatus only.



[Statutory Authority: Chapters 17.21, 15.58, and 34.05 RCW. 07-11-041A, § 16-230-190, filed 5/9/07, effective 6/9/07. Statutory Authority: RCW 17.21.030 (b)(c) and 15.58.040(h). 95-14-093 (Order 5071), § 16-230-190, filed 6/30/95, effective 7/31/95. Statutory Authority: Chapters 15.58 and 17.21 RCW. 91-08-058 (Order 2081), § 16-230-190, filed 4/2/91, effective 5/3/91; 87-15-001 (Order 1938), § 16-230-190, filed 7/2/87; 85-17-066 (Order 1871), § 16-230-190, filed 8/21/85; 85-12-012 (Order 1858), § 16-230-190, filed 5/24/85; 80-05-005 (Order 1682), § 16-230-190, filed 4/4/80; 79-05-043 (Order 1598), § 16-230-190, filed 4/26/79; 79-02-046 (Order 1591), § 16-230-190, filed 1/29/79; Order 1545, § 16-230-190, filed 11/30/77.]