WAC 16-232-074   What are the restrictions on applications in Walla Walla County due to temperature?  All phenoxy compounds and dicamba shall not be applied when the temperature is above eighty-five degrees F. or above at the point of application: Provided, That application at the rate of fifty gallons or more per acre using nozzles having a minimum orifice diameter of .072 inches is exempt from the eighty-five degrees F. temperature requirement: Provided further, That when using the invert system, applications may continue up to ninety-five degrees F. with a maximum wind velocity of fifteen miles per hour and with water carrier at twelve or more gallons per acre.



[Statutory Authority: Chapters 17.21, 15.58, and 34.05 RCW. 07-11-041A, § 16-232-074, filed 5/9/07, effective 6/9/07. Statutory Authority: Chapters 17.21 and 15.58 RCW. 00-24-002, § 16-232-074, filed 11/22/00, effective 12/23/00.]