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From Dr. Eric Prostko:


Syngenta recently received a label for their new formulation of paraquat sold under the trade name of Gramoxone 3SL (3 lb ai/gal).  Many rules regarding the purchase, handling, and application of paraquat are changing.  Most notably, all non-bulk paraquat products (with new labels) must adhere to closed-system packaging requirements set forth by the EPA’s Paraquat Dichloride Human Health Mitigation Decision by November 2020.  Also, all paraquat applicators are required to complete an EPA-approved training module before applying.

A couple of quick links for your information:

1) New Gramoxone 3SL label:

2) Current bulk handling systems already meet the new closed-system packaging requirements.  Tank adaptors for new closed system 2.5 gallon containers should be available from dealers and/or manufacturers?

3) EPA-Approved Paraquat Training Information:

4) Generally, research results from my 2019 field trials with the new Gramoxone 3SL formulation have been very positive (see below).

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