Per the manufactuers label Primo MAXX Plant Growth Regulator becomes rainfast one hour after application. Watering or Irrigation would be fine after the one hour drying period.
Yes, Primo MAXX Plant Growth Regulator can be mixed with a surfactant. You should try and keep any overspray from contacting non target plants.
No, this is not harmful to dogs or other animals when used as directed. You should keep pets out of the treatment area until your application of Primo MAXX Plant Growth Regulator is completely dry.
Primo MAXX Plant Growth Regulator should not be applied during rain or in wet conditions.
Two alternatives to the Primo MAXX Plant Growth Regulator would be Atrimmec Plant Growth Regulator or Edgeless Turf Grass Regulator . The label does not indicate if either of these products can be mixed with "field" paint, so separate treatments might be necessary. Edgeless Turf Grass Regulator does indicate you can add a turf indicator to the product to help mark where you have applied. We recommend contacting the manufacturer's directly for further information.
Edgeless Turf Grass Regulator - SePRO at 800-419-7779
Primo MAXX Plant Growth Regulator does not give information regarding overseeding over zoysiagrass on the label so would not be recommended. Tenacity is not labeled to control zoysiagrass, only states on the label that it can be sensitive to it. You can use both products around the same time, because some herbicides can injure turf, tank mixes with Primo MAXX should be tested on a small scale before widespread use.
The Primo MAXX Plant Growth Regulator product label states the following: Apply Primo MAXX to actively growing turf. If turf is going into dormancy because of high or low temperatures or lack of moisture, apply a lower rate of Primo MAXX. Repeat applications of Primo MAXX may be made as soon as the turf resumes growth or more suppression is desired.
It can be applied to newly sodded areas once the turf has established a good root system and after the 3rd or 4th mowing.
Primo MAXX Plant Growth Regulator needs to be applied to actively growing turf. It would not affect the parts that are still dormant.