According to an advisory issued June 16 by the Oregon Department of Agriculture, two popular plant cleaner products — Green Planet Nutrients Mega Wash and NPK Industries Mighty Wash — are being recalled following the discovery of an active pesticide ingredient that is not disclosed on their labels.
The state issued the following warning on Thursday:
The Oregon Department of Agriculture (ODA) has reason to believe the products Mighty Wash and Ultimate Wash, manufactured by NPK Industries, contain a pesticide active ingredient not listed on the label. ODA has tested both products and found it to contain the active ingredient pyrethrins. Use of Mighty Wash and Ultimate Wash could cause cannabis to fail Oregon Health Authority (OHA) pesticide testing requirements. Growers of all crops and retailers are advised to discontinue using or selling Mighty Wash and Ultimate Wash until further notice.
The Oregon Health Authority informed growers that although pyrethins pose low risk to humans unless exposed to very high concentrations, high levels of inhalation of the substance have caused respiratory irritation symptoms similar to asthma.
The Mega Wash formula is manufactured by Freq Water, Inc. of Central Point, OR for a Canadian company called H.I.T. Manufacturing, based out of Surrey, British Columbia. The Mighty Wash formula is manufactured by NPK Industries, located in Medford, OR.