Add this mild, non-ionic surfactant to the herbicide to produce great foam and it's blue, so you can easily see what you have treated! The foaming agent (51% active ingredient) is a plant extract (sugar and a fatty alcohol), so it has superior biodegradability. The blue colorant is a food dye: FD&C Blue #1. The 16 oz bottle is enoug
4.3
11 ratings
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Blue is good
I liked the effect of the blue foaming agent when used with herbicide. I could clearly see where I had applied it and the foam made it easy to see if I had applied enough and in the right places. There was no excess dripping or loose herbicide to splash all over.
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Momma · 3 days ago
Males it possible to target individual plants leaves. No overspray hitting the ground or other plants. Awesome.
K
Keely · September 20, 2026
Blue Foaming Agent
Great for precise herbicide application. A game-changer.