What happens when you don’t follow the WALES method for adding pesticide formulations to a tank partially filled with water?
You really can plug up a sprayer, fail to take advantage of good spraying conditions, and waste time cleaning up the mess. At the recent Crop Masters tour at Syngenta Canada‘s Honeywood research facility in Plattsville, ON, Doug Baumann demonstrated what can happen when growers mix up the mixing order.
Baumann, a Syngenta chemist and engineer, mixed Trivapro A and Trivapro B fungicides and Roundup herbicide to demonstrate the importance of proper mixing order. When the WALES method is followed in sequence (wettable powders and water dispersible granules + agitate tank mix thoroughly + liquid flowables and suspensions + emulsifiable concentrate formulations + surfactants/solutions) you get a mixture that is pure and clean. But mixing in the incorrect order can create a buildup of particles that plug your sprayer.
“It’s not a comment on one product or the other, it’s a lesson in WALES,” emphasizes Baumann. “When you follow WALES and put the products in the correct order, you get the dilution you need,” which is key to spray mixtures that perform effectively.
Check out what happens when you mix Trivapro and Roundup in the wrong order in this video.
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