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oxalic acid glycerin strips testing
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<blockquote data-quote="Alastair" data-source="post: 12249" data-attributes="member: 13"><p>OA/GL strips have been catching on in the US now that a lot of their other treatments are not reliable. The EPA had at one time allowed their use, and even had instructions on their web site how to use them. But have recently advised beekeepers that they are withdrawing approval.</p><p></p><p>The EPA provided three reasons why this is unacceptable use of a pesticide. Here is a paraphrase and the full document is linked below:</p><p></p><p>1. The dosage of 50g per application exceeds the 35g dosage allowable for OA and sugar water.</p><p>2. The existing label states: “Only apply...a solution when mixed with sugar-water.” (There is also an option for vaporization.)</p><p>3. Mixing of pesticide with a fertilizer is allowable under the regulation but nowhere in the regulation does it allow pesticide to be mixed with glycerin.</p><p></p><p>Additional Concerns:</p><p>The current labeling of OA applications are acute exposure (one time short period), the pads are extended duration resulting in chronic exposure. In other words- it could hurt the bees.</p><p></p><p>The addition of inert ingredients must be cleared by the EPA first. This requires submital and registration for a new product.</p><p></p><p>EPA concern is that many cellulose pads contain fire retardant that may be harmful to bees!</p><p></p><p>[URL unfurl="true"]https://agriculture.vermont.gov/sites/agriculture/files/doc_library/EPA%20Ltr.pdf[/URL]</p><p></p><p>I would agree that prolonged exposure may be harmful to bees, however I would have thought that would be for the beekeeper to worry about, not the EPA.</p></blockquote><p></p>
[QUOTE="Alastair, post: 12249, member: 13"] OA/GL strips have been catching on in the US now that a lot of their other treatments are not reliable. The EPA had at one time allowed their use, and even had instructions on their web site how to use them. But have recently advised beekeepers that they are withdrawing approval. The EPA provided three reasons why this is unacceptable use of a pesticide. Here is a paraphrase and the full document is linked below: 1. The dosage of 50g per application exceeds the 35g dosage allowable for OA and sugar water. 2. The existing label states: “Only apply...a solution when mixed with sugar-water.” (There is also an option for vaporization.) 3. Mixing of pesticide with a fertilizer is allowable under the regulation but nowhere in the regulation does it allow pesticide to be mixed with glycerin. Additional Concerns: The current labeling of OA applications are acute exposure (one time short period), the pads are extended duration resulting in chronic exposure. In other words- it could hurt the bees. The addition of inert ingredients must be cleared by the EPA first. This requires submital and registration for a new product. EPA concern is that many cellulose pads contain fire retardant that may be harmful to bees! [URL unfurl="true"]https://agriculture.vermont.gov/sites/agriculture/files/doc_library/EPA%20Ltr.pdf[/URL] I would agree that prolonged exposure may be harmful to bees, however I would have thought that would be for the beekeeper to worry about, not the EPA. [/QUOTE]
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