Yes, Dominion 2L Termiticide Concentrate will treat to Emerald Ash Borers. Treatments should begin in May or June, and should be done every year to protect trees from the Emerald Ash Borers. Most people us a 5 gallon bucket or a large watering can to apply Dominion as a soil drench.
You would drill into the same location where the slab was previously treated and spray the termiticide into the holes. If you don't already have a product in mind to use, Dominion 2L is an economical product that will last for at least 7 years, and Taurus SC will last for at least 10 years.
When using Dominion 2L Termiticide Concentrate for a soil drench, you typically start drenching about 12 inches from the base of the tree and out to the drip line. In Texas, you will apply this product as a soil drench before the pollen has shed around mid April. You can contact your local cooperative extension for specific timing.
Dominion 2L should be applied yearly for emerald ash borer control. It is typically applied around May or June, but it would be a good idea to contact your local cooperative extension office to find out the best timing for your specific area.
We would recommend using Domnion 2L. It is labeled for use on trees for emerald ash borers as a preventative and a curative. This only needs to be done once a year. The mixing ratio is 0.1 to 0.2 fl oz per inch of the trunk diameter. This needs to be mixed in at least 5 gallons of water and poured around the roots of the tree.
Dominion 2L contains Imidacloprid which could indeed be harmful to honey bees. According to the Dominion 2L product label ,"This product is highly toxic to bees exposed to direct treatment or residues on blooming crops or weeds. Do not apply this product or allow it to drift to blooming crops or weeds if bees are visiting the treatment area."
You may want to consider using ant bait in a bait station such as the Ant No More Bait Station which can be placed around the base of the infested trees. By placing the bait into the station you will be protecting it from the elements. Ant No More allows you to add two of your own favorite liquid, gel, or granular ant baits. The choice of two different baits ensures greater attraction for all kinds of ants.
You have to drill into the cinder block. But not every block, you should drill two holes per block, one hold per void, in one line around the perimeter of the basement or at least wherever you have exposed block. Typically you go up about 12 to 18 inches, and drill that block all the way around. You should spray 2 gallons per 10 feet into the block.
There probably is more holes to drill this way, but it will go much faster. It is much easier to drill through the thin wall of the block rather than the thick concrete slab. You could probably drill 10 to 15 holes in the same time it would take you to drill one single hole through the slab of the basement. Also, the problem with drilling through the slab is that the termites are probably entering the block from much deeper under the soil then the slab level, so if you only treated the slab it would probably not contact the termites and not work. Only drilling into the block, where they are, will guarantee you will take care of the issue.
Dominion 2L cannot be applied to potted or containerized plants. You could apply this to hibiscus if they were in the soil outdoors only. Honey bees could potentially be affected by the active ingredient if applied while the plants are in bloom.