Today, the conversation has transitioned from simply discussing resistant weeds to an actionable focus on the new pesticide trait technologies available for retailers and growers to enhance their weed control options. With approval of the new trait technologies, the EPA has developed requirements to help ag retailers and growers have more success in the upcoming season and for better use of these trait technologies long term.
Application requirements include, but are not limited to the approved tank mix partners, approved nozzles, buffer zones, non-target susceptible crops and resistance management, etc.
Today we are going to talk more about the approval process for all products that are possible tank mix partners for the new herbicides labeled for use with the new dicamba tolerant traits.
Currently, the approval process for tank mix partners requires strict testing to prove the tank mix partner does not increase the potential of off-site movement. Below are the Federal Registration requirements outlined in more detail.
Approval Process & Requirements
- First, for tank mix partners to get approval, companies must generate data to show that their tank mix product does not increase off-site movement, and the data generated through the process must be submitted to the EPA for approval.
- If and when a pesticide becomes federally registered, it is required that a website is maintained that includes all approved products. It is prohibited to use products in a tank-mix with certain pesticides unless they are approved.
The following websites are available to provide the most updated information on application requirements, including approved tank mix partners:
The key parameters for adjuvants with the new trait technologies include:
- Adjuvants must not disrupt the drift emulsion system within Enlist Duo™. Often referred to as Colex-D™ technology.
- Adjuvants must not contain ammonium salts, including ammonium sulfate, as these can cause dicamba to be more volatile.
- Adjuvants that excessively reduce the pH of the spray solution should be avoided as low pH can negatively impact the volatility of dicamba herbicides.
- Oil adjuvants may cause temporary crop response with the dicamba chemistry.
To help growers easily abide by these new parameters, West Central released its newest line of Elite Adjuvants, including: Veracity™ Elite II, Jackhammer™ Elite, Cerium™ Elite and Sedate™ Max, which have been approved in specific tank mixes with the herbicides labeled for the new dicamba-tolerant traits.
Learn more about these adjuvants below:
- Veracity Elite II is a DRA approved adjuvant with XtendiMax® With VaporGrip® Technology, Engenia®, and FeXapan™ herbicide Plus VaporGrip® Technology. It contains a water conditioner, surfactant and defoamer and also includes unique drift control abilities that are approved for use with glyphosate, dicamba, 2,4-D and other herbicides with DRA requirements. In addition to being an all-in-one adjuvant, Veracity Elite II has a convenient low use rate of 4 to 5 pints per 100 gallons of water. It has also shown to be a beneficial adjuvant with other herbicides, in addition to glyphosate and the new dicamba products.
- Jackhammer Elite is an unsurpassed surfactant/water conditioning agent combination that increases absorption into the target plants, improves droplet coverage and canopy penetration, and slows droplet drying.
- Cerium Elite is a surfactant that can be used to replace the traditional crop oil concentrate, and is extremely effective in reducing drift and off-target movement. With a low use rate of one quart per 100 gallons, this multi-functional adjuvant can be used with herbicides, fungicides, insecticides, defoliant and desiccants, where a crop oil or a nonionic surfactant is recommended.
- Sedate™ Max was developed to improve the droplet spectrum of spray solutions without altering the viscosity, resulting in reducing the percentage of fine droplets, which in turn creates a more “dense” droplet.
- The typical use rate of Sedate Max is four ounces per acre.