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).