Termidor SC (20 oz bottle makes 24 gallons of mix) is mixed at 0.8 fl oz per gallon of water and Dominion 2L (27.5 fl oz bottle makes 50 gallons of mix) is mixed at 0.6 fl oz per gallon of water.
Termidor is not labeled for use in or around edibles. Any edibles sprayed with Termidor should be discarded. Please contact the manufacturer BASF for further instruction 800-526-1072.
Since Termidor SC is a non repellent, overmixing could negatively effect the treatment. We recommend to either add more water or start over using the recommended rate of 0.8 oz per gallon of water.
Everywhere you dig, you will follow the method of digging a 6x6 trench and use 4 gallons finished Termidor SC solution to every 10 linear feet, so it depends on the dimensions around the piers.
Termidor SC is used for both termite prevention as well as ant control. The termite prevention requires the trenching and rodding, and is done once every 10 years. When using it for ant control, you would spray 1 foot up the side of the structure and 1 foot out into the soil, all the way around the perimeter of the structure, along with around doors and windows. This can be done according the following label instructions:
Termidor SC should not be applied if the ground is below freezing, or it will not take hold. Also, as long as Termidor SC has time to dry and bind with the soil, the rain will not affect it. It is best to wait until you have a few days of no rain in the forecast so there is at least 24 - 36 hours time after you treat before it rains. After that it will hold quite well to rain and weather.