Silicone surfactants have the intriguing and commercially viable ability to reduce the surface tension of polar and non-polar liquids to values 15–20 mN/m lower than commonly achieved with organic-based surfactants.
The latest developments on understanding and commercially exploiting the phenomenon of superwetting are reviewed.
Silicone surfactants demonstrate a marked tendency to form aggregate structures featuring surfactant bilayers including vesicles and lamellar liquid crystals.
Growers use tank mixes all the time to apply all of the required ag inputs in an efficient manner. Every one of these mixes is different and while many will not cause any problems, some formulations are not compatible with each other and cause a big mess and a bigger headache. Ag professionals can use a couple of techniques to avoid tank mix compatibility issues in their sprayer.
When mixing products, growers should add products to the spray tank in a specific order to avoid mixing problems. While growers need to consult the labels on the products they are using for specific mixing instructions, generally products should be added to the tank using the W-A-L-E-S method
If growers have a specific tank mix that they are concerned with, a small “jar test can save a lot of hard work and money. In this test, we mix the products that would be in the tank mix in a small, clear, pesticide-safe container at the same concentrations as the tank mix. We can then evaluate the jar test and examine the compatibility of the products in the mix. It is much easier to dispose of a small container of incompatible mix rather than clean out a large sprayer tank full of the same mix.