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ODA orders stoppage of use and sale of Guardian pesticide

Posted By Beth Farmer, Wednesday, February 10, 2016

The Oregon Department of Agriculturehas ordered stoppage of sale of the pesticide product Guardian, which is labeled for use on ornamental, food and feed crops for mite control but also used by cannabis growers. In addition, ODA has asked growers who may have purchased the pesticide product to refrain from using it.

ODA’s actions come following an investigation of the product that found the presence of the pesticide active ingredient abamectin, which is not listed on the product label. ODA said it intends to address violations of Oregon’s Pesticide Law, which include adulteration of a pesticide product, misbranding of a pesticide product, and making false or misleading claims about a pesticide product.

Abamectin is a highly toxic material to insects, however most formulated products containing abamectin are of low toxicity to mammals, according to the Extension Toxicology Network. ODA is currently working with the Oregon Health Authority and Oregon Liquor Control Commission to determine potential human health concerns associated with the use of cannabis products treated with Guardian.

Meanwhile, ODA continues to maintain a list of pesticide products to help guide marijuana growers and pesticide applicators throughout the state. The guide list is available on ODA’s cannabis and pesticides webpage.

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