adding water to a tank mix in WALES order

Share This Article

Facebook
Twitter
LinkedIn

The Secret to Tank Mixing Pesticides

Whether it’s protecting a golf course from crabgrass or a soybean field from redroot pigweed, pesticides play a crucial role in preventing weed takeovers. There is a delicate balance in the way pesticide chemical products are mixed and applied that can significantly impact their effectiveness. Following proper mixing order can alleviate foam, sludge, broken emulsions, and other reactions that can occur through mixing. One way to ensure optimal mixing is to follow the WALES, WAMLEGS, or APPLES acronyms.

Why Follow a Mixing Order?

Mixing order acronyms provide a structured sequence for adding different types of agricultural chemicals to the mixing tank. These orders allow users to optimize the dispersion and distribution of the chemicals, ensuring uniformity and effectiveness during application. The benefits to following a structured mixing order sequence include uniform mixing, enhanced efficacy, reduced equipment issues, and improved efficiency.

  • Uniform Mixing: More consistent distribution of chemicals within the tank, resulting in a more uniform application. This uniformity ensures that crops receive adequate protection and nutrients, reducing the risk of under or over-application.
  • Enhanced Efficacy: Proper mixing order prevents clumping, settling, and chemical interactions, thereby maximizing the effectiveness of pesticides and herbicides. When applied uniformly, the active ingredients can target pests, diseases, and nutritional deficiencies more efficiently, leading to improved crop or turf health and yields.
  • Reduced Equipment Issues: Mixing chemicals in the correct order helps reduce clogging and blockages in spray equipment. By preventing the buildup of residues and clumps, users can avoid costly equipment repairs and downtime.
  • Improved Efficiency: Following mixing order acronyms streamlines the mixing process, saving time and effort. With a clear sequence to follow, users can mix chemicals more efficiently, ensuring all components are adequately incorporated and avoiding the need for repeated mixing or additional treatments.
foaming in an agricultural spray tank mix

Following the proper tank mixing order reduces the likelihood of problems during mixing, and contributes to a successful application.

In short, by following the proper mixing order, users can achieve a more uniform and effective chemical mixture, resulting in better performance – improved turf quality or increased yields.

Following WALES Mixing Order

WALES is an acronym that helps define the proper mixing order for complex tank mixes. Following these steps in order is imperative to a successful pesticide application.

W - Wettable Powders, Water Dispersible Granules, Water Soluble Packets

Often in the form of finely ground particles, wettable powders are the first component to be added to the mixing tank. Similarly, water dispersible granules, water soluble packets, and dry flowables all need to be added at the beginning of the mixing process. These chemicals are usually soluble in water and require thorough agitation to prevent clumping and ensure even distribution within the tank.

A - Agitation

After adding the components listed above, it is important to agitate the mixture. Agitation ensures that the particles are fully suspended in the tank and prevents settling. This step helps maintain a consistent concentration of the active ingredient throughout the application.

L - Liquid Flowables

Liquid flowables as well as suspension concentrates should be added next. These materials often contain larger particles that may settle over time. By adding them after wettable powders and agitation, they are less likely to interact with the settling particles and form clumps.

E - Emulsifiable Concentrates

Emulsifiable concentrates, including oil-based chemicals, are added after the liquid flowables. These substances require thorough mixing to form stable emulsions. This step ensures that emulsifiable concentrates can mix uniformly without interference from other chemicals.

S - Solutions

Solutions and soluble liquids are added last, and these include anything already dissolved uniformly in water, such as surfactants. These materials can act as carriers for the other chemicals in the mixture, ensuring proper dispersion during application. By adding them last, the spray solution helps flush out any remaining residues and ensures that the tank is thoroughly cleaned.

Creating a tank mix in the WALES order ensures the mixture is blended properly so that it performs to its maximum potential.

adjuvant label callout with WALES tank mixing instructions

Many products specify the mixing order on the label. On this adjuvant label, COMPLETION™ is added in step S (Solution) like most adjuvants.

Following WAMLEGS and APPLES Mixing Orders

While WALES is a great way to go about tank mixing, there are other similar acronyms that can be helpful. WAMLEGS and APPLES are two other acronyms that can be followed to create an effective tank mix.

WAMLEGS stands for Wettable Powders, Agitation (anti-foaming agents and buffers), Microencapsulated suspension products, Liquid and soluble products, Emulsifiable concentrates, High-Load Glyphosates, and Surfactants. This is very similar to WALES, but adds additional direction for microencapsulated suspensions and high-load glyphosates.

Also similar to WALES and WAMLEGS, APPLES emphasizes the sequence of Agitation, Powder soluble materials (SG, SP, fertilizer), Powder dry materials (DF, WDF, WP), Liquid flowables and suspensions (SC, SE, F), Emulsifiable concentrates (EC, EW, OD), and solutions (S, SL).

Mixing order acronyms provide valuable guidance for users when blending agricultural chemicals. The WALES, WAMLEGS, and APPLES mixing orders offer structured approaches to achieve optimal dispersion, compatibility, and uniformity of agricultural chemical mixtures. By following these guidelines, users can enhance the efficacy of pesticides, fertilizers, and other inputs. In agriculture, this leads to improved crop protection, increased yields, and sustainable farming practices, and in turf, this leads to improved turf health and sustained quality of turf landscapes. It is crucial for users to familiarize themselves with these mixing order acronyms and incorporate them into their chemical application processes to maximize the benefits for their crops and the environment.

New CCO Malin Westfall

Exacto Announces Malin Westfall as Chief Commercial Officer

Exacto is pleased to announce the appointment of Malin Westfall as Chief Commercial Officer. Exacto, LLC (“Exacto”), a full-service innovation partner in the agricultural, turf, and ornamental horticulture markets, is pleased to announce the appointment of Malin Westfall as Chief Commercial Officer, effective immediately.

Read More »
Meen An Adjuvant Label

Meet An Adjuvant Label

While we know that there are a thousand demands on your time and attention, a few minutes spent on understanding the adjuvant label will result in more effective applications. Read more to find an example of what the front and backside of an adjuvant label looks like, accompanied by thorough explanations of each section.

Wetting Agents

Wetting Agents: Interview with Dr. Matteo Serena & Dr. Doug Soldat

Watch the discussion below in which Dr. Glen Obear, Director of RDI at Exacto, Inc., interviews two university researchers at the cutting edge of their fields – Dr. Matteo Serena, Professional Researcher at the University of California-Riverside, and Dr. Doug Soldat, Turfgrass Extension Specialist at the University of Wisconsin-Madison.

Exacto: How We Care

Giving Back To The Community

At Exacto, we recognize that we have a great responsibility and purpose in this world – one that extends beyond the work we do in our day-to-day job. Giving back to the community and volunteering our time to help others is part of our company culture at Exacto.

End of harvest

2021 US Crop Season Review

The 2021 US corn and soybean crop season saw a return to farming profitability as a bull market for agricultural commodities was established ahead of reactive land and input cost price increases by the end of the harvest. Farming is a cyclical business with lots of unknowns; the cycles seem to change faster and faster as the global economy can create surplus and shortage situations on a very short time scale.

Young velvetleaf weed

2022 Takes on Weed Science: Interview with Dr. Rodrigo Werle & Dr. Glen Obear

Watch the interview with Dr. Rodrigo Werle and Dr. Glen Obear and listen to their ‘2022 Takes on Weed Science’. Rodrigo Werle, Research Professor & Extension Weed Scientist at the University of Wisconsin – Madison (UWM), and Glen Obear, Director of Research, Development, and Innovation at Exacto, share their unique perspective.

Follow Exacto, Inc.

Featured Products