Awhile back I mentioned the new training from EPA for the use of paraquat. Anyone associated with mixing, handling, applying paraquat products (Gramoxone) has to complete the training. Syngenta recently received a label for its new formulation of paraquat sold under the trade name of Gramoxone 3SL (3 lb ai/gal). As you may recall, 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.
From what I can hear, there will still be some of the older labeled paraquat formulations (2SL and 3SL) in the marketplace for 2020 but these will disappear when supplies are exhausted. Thus, everyone needs to be very aware of the label requirements of the container(s) they have in their possession.
A couple of quick links for you to review.
1) New Gramoxone 3SL label:
https://www.syngenta-us.com/current-label/gramoxone_sl_3.0
2) Current bulk handling systems already meet the new closed-system packaging requirements. A video of the new closed system for 2.5-gallon containers can be viewed here: https://youtu.be/XNxHq_asxXg. Tank adaptors for 2.5-gallon containers should be available from dealers and/or manufacturers????? In my opinion, this headache will likely push more growers to bulk handling systems.
3) EPA-Approved Paraquat Training Information:
https://www.epa.gov/pesticide-worker-safety/paraquat-dichloride-training-certified-applicators
4) Generally, research results from Dr. Prostko’s 2019 field trials with the new Gramoxone 3SL formulation have been very positive.
