WAC 16-230-150
WAC 16-230-150. Areas under order for use restricted desiccants and defoliants
(1) Area under order: All counties located east of the crest of the Cascade Mountains.
(2) Use restricted desiccants and defoliants: The following desiccants and defoliants are declared to be use restricted desiccants and defoliants in the area under order: Diquat; Paraquat; and Endothall.
(3) Additional restrictions apply for certain areas of Walla Walla County (see WAC 16-230-190 ).