Oxalic and Hopguard II update

March 19, 2015-

The EPA issued an approval (section 3) for Oxalic Acid Dihydrate 97% to be used as a miticide on March 10.

Hopefully the availability of labeled Oxalic Acid and the NYS DEC approval should take place in a few weeks.

In New York, the Department of Environmental Conservation (DEC), must approve the label. Letters of support/need should be communicated to:

NYS DEC Bureau of Pest Management, Pesticide Registration Section, 625 Broadway, Albany, NY 12233-7254 ATTN: Jeanine Broughel              For email comments:   ppr@dec.ny.gov

Please check back for additional info and fact sheets.

oxalic label final (PDF)

The label lists:

Directions for Use- application direction (solution or “dribble” method; Vaporizer method; Spraying Package Bees),

Resistance Management

Storage and Disposal

Precautionary Statements- Hazards to Humans and Domestic Animals; Warnings; First Aid

Registration Number

Links: NOTE- for general information,some content needs updating





An improved delivery system: strips contain 4.0 grams of the potassium salt of hop beta acids per strip   The original HopGuard contained  1.92 grams of the potassium salt of hop beta acids per strip.

The Hop Guard II Section 18 Emergency Exemption recertification should be under review by the EPA.Paperwork to the DEC was submitted on February 26th for them to formally request the recertification from the EPA.Anticipate communication from the DEC on the EPA’s decision in the next couple of weeks.