It would not be recommended to apply Dominion 2L Termiticide Concentrate through a root feeder. However, there are a few other application options besides the root drench that you could do.
Soil Injection: Grid System: Space holes in a grid pattern on 2.5 foot centers, extending to the drip line of the tree.
Circle System: Apply in holes evenly spaced in circles, (use more than one circle dependent upon the size of the tree) beneath the drip line of the tree extending in from that line.
Basal System: Space injection holes evenly around the base of the tree trunk no more than 6 to 12 inches out from the base
It is usually recommended to do both a topical treatment as well as a systemic treatment for aphids. Our most popular choices for these are Talstar P (topical spray, water-based concentrate- use 1 oz per gallon of water) and Dominion 2L (systemic, applied as a root drench; use 0.2 oz per inch of trunk diameter for trees or per foot of shrub height for bushes). You may want to take a look at our article on Aphid Control for more information on treating this pest.
Yes, Dominion 2L Termiticide Concentrate can be applied to Boxwoods for leafminers. When applying this systemic product as a drench for leafminers you will mix 0.1 - 0.4 fl oz per inch of the trunk diameter. Apply uniformly around the base of the tree in no less than 10 gallons of water per 1000 square feet. Direct application to the root area. You could also incorporate a product like Talstar P for a foliar application of leafminers using 0.5 to 1 oz per gallon of water per 1,000 sq.ft.
It is usually recommended to do both a topical treatment as well as a systemic treatment for aphids. Our most popular choices for these are Talstar P (topical spray, water-based concentrate- use 1 oz per gallon of water) and Dominion 2L (systemic, applied as a root drench; use 0.2 oz per inch of trunk diameter for trees or per foot of shrub height for bushes). You may want to take a look at our article on Aphid Control for more information on treating this pest.
Dominion 2L is not a fungicide and would not treat any tree for black sooty mold. Dominion is often used as soil drench application to the base/root zone of trees to help with insects that do damage to the plant throughout the season such as whiteflies, aphids, borers, etc. Make sure you have correctly identified the issue on your crape myrtles as either disease or insect as the treatments would be very different for each. If its insects that are causing the sooty spots on the leaves, you would only need to do a single application of Dominion 2L to the roots of the plant per year. It does need to be applied when the trees are acively growing to absorb the product effectively.
Dominion 2L Termiticide Concentrate should not harm the lawn at that rate. We recommend that you treat with 0.6 fl oz per 1,000 sq ft on future applications per the product label instructions. If you do show signs of damage, you can reach Control Solutions at 281-892-2500 for assistance.
It all depends on how far away the well or cistern is away from the property. Here is the verbiage off of the instruction label for Dominion:
TREATMENT AROUND WELLS OR CISTERNS: Do not contaminate wells or cisterns.
Structures With Wells/Cisterns Inside Foundations: Structures that contain wells or cisterns within the foundation of a structure can only be treated using the following techniques:
1. Do not apply within 5 feet of any well or cistern by rodding and/or trenching or by the backfill method. Treat soil between 5 and 10 feet from the well or cistern by the backfill method only. Treatment of soil adjacent to water pipes within 3 feet of grade should only be done by the backfill method.
a) Trench and remove soil to be treated onto heavy plastic sheeting or similar material or into a wheelbarrow.
b) Treat the soil at the rate of 4 gallons of solution per 10 linear feet per foot of depth of the trench, or 1 gallon per 1.0 cubic feet of soil. Mix thoroughly into the soil taking care to contain the liquid and prevent runoff or spillage.
c) After the treated soil has absorbed the solution, replace the soil into the trench.
Structures With Adjacent Wells/Cisterns and/or Other Water Bodies: Applicators must inspect all structures with nearby water sources such as wells, cisterns, surface ponds, streams, and other bodies of water and evaluate, at a minimum, the treatment recommendations listed below prior to making an application.
1. Prior to treatment, if feasible, expose the water pipes) coming from the well to the structure, if the pipes) enter the structure within 3 feet of grade.
2. Prior to treatment applicators are advised to take precautions to limit the risk of applying the termiticide into subsurface drains that could empty into any bodies of water. These precautions include evaluating whether application of the termiticide to the top of the footer may result in contamination of the subsurface drain. Factors such as depth to the drain system and soil type and degree of compaction should be taken into account in determining the depth of treatment.
3. When appropriate (i.e., on the water side of the structure), the treated backfill technique (described above) can also be used to minimize off-site movement of termiticide.
Dominion 2L would not work for elm bark beetles as it would not reach to the areas of the trees these beetles infest. Effective treatment involves killing the beetles before they bore into bark in fall and when they first emerge in spring so protecting healthy trees is best. Timing is critical to reach the pests before they're under the protective bark. You can use a product like Permethrin SFR for this.
There are also articles linked below that can help:
https://ag.umass.edu/landscape/fact-sheets/elm-bark-beetle
https://www.fs.usda.gov/Internet/FSE_DOCUMENTS/stelprdb5347208.pdf