When using Dominion 2L as a soil drench to trees and shrubs it should last for a full 12 months, however if you have a heavy pest problem you can retreat the soil after 6 months.
You can use Dominion 2L insecticide to treat scale on your crepe myrtle trees. You would apply this as a drench around the root system of each tree while the trees are actively growing. This is typically done in spring after petal fall. You would use 0.1 – 0.4 oz of Dominion 2L per inch of trunk diameter at breast height diluted in water in a bucket or watering can and poured around the base of each tree. We generally recommend that you pair a soil drench with a topical spray such as a horticultural oil or a pyrethroid such as Talstar P for fastest results when treating for scale.
Each product is formulated differently and the actual application rates are different so the instructions on each product are specific for that specific product. Here are the measuring instructions that should be followed for Dominion 2L:
How to find the DBH or Diameter at Breast Height of a tree
1. To find the diameter of the tree, measure the circumference of the tree four feet from the ground. Use your tape measure to get accurate measurements from the ground to the four-foot mark and around the tree.
The circumference of my tree is _____________________
(include units)
2. Calculate the diameter of your tree:
_________________ ÷ pi (3.14) = _____________________
circumference diameter (include units)
Note: For multi-stem trees, such as crape myrtle or birches, the rate should be determined on cumulative stem diameter for all stems in the clump.
You need to get the Dominion into the ground, so you would typically want to drill holes in the tree stump, and around the tree stump into the ground, and then inject the Dominion inside any holes. It will touch the termites that are inside and underneath the stump and eliminate them completely.
Dominion or Termidor could be used in the trench around the house and would be great to do so. Termidor would last longer in the soil, 10 years or more whereas Dominion is about 5-7 years.
Dominion 2L is mixed at 0.6 fl oz or 3.6 teaspoons per gallon of water. Please refer to the product label for additional mixing and applications for this product.
We would recommend using Dominion 2L Termiticide Concentrate. This is labeled for use on trees, as well as around the perimeter of your home for ants. This is also labeled for other insects as well. Be sure to spray the area directly where the ants are. The mixing ratio is 0.6 fl. oz. per gallon of water.
Dominion 2L Termiticide Concentrate is a great product for listed insects as a soil drench. However, for bagworms, a foliar application of a product such as Talstar P would be a better option. It can be applied once monthly. If the bagworms are mature, manually plucking them and soaking in soapy water would be the alternate option.