Does the surfactant cause the herbicide to sink better in the water? Or is it just to get the herbicide to penetrate the waxy covering on the stems/leaves of the plant?
This article seems to make it sound like surfactant shoudl NOT be used on submerged weeds, as it will just stay at the surface of the pond?
https://www.sancoind.com/store/en/pond-surfactant A nonionic surfactant should only be used when one is applying the product on emergent vegetation like Cattails or on submerged vegetation close to the surface of the water like Duckweed. This is due to the nature of surfactants tending to �stick� to vegetation or develop a thin film on the surface of the water. It does not sink into water well, so if one is targeting deeper submerged aquatic weeds, it would actually defeat the purpose of the product by adding the aquatic surfactant to the spray solution.
