Cold water may inhibit the proper mixing of some herbicide formulations. This is particularly a concern during the early spring when cool, cloudy conditions are common. It may be necessary to allow the water to warm slightly before adding the herbicides. It is illegal to mix herbicides near a well. One last consideration is when herbicide mixtures are allowed to set long periods of time.
Some products tend to settle and cake at the bottom of the spray tank.
Mechanical stirring, a compatibility agent or both may be necessary to resuspend the herbicide mixture. It is better to mix only as much herbicide as will be applied at one time. This information subject to a usage policy .