Suspend Polyzone Insecticide is not labeled for mites therefore would not be a recommended insecticide.
Onlsaught Insecticide would be an alternative for a broad range of mites. Please view the full product label for more information.
Suspend Polyzone is labeled for use on ornamental trees such as your Junipers, however this is not labeled for bagworms. We suggest Talstar P for control of bagworms. Be sure to treat before the insects form new cocoons in late summer.
Fendona CS Controlled Release Insecticide nor Suspend Polyzone Insecticide are labeled for use in delivery systems or irrigation systems which could possibly be why you are having issues with hardening, clogging and not being able to spray. If spray screens are used, they should be 50 mesh or larger.
When using boom sprayer equipment, backpack sprayers or even hand pump sprayers, the mixed solution needs to be used within 24 hrs as after 24 hrs, the active ingredient begins to break down and no longer stays in suspension. Agitating the sprayer occassionally is recommended to ensure an even mixture or if spraying is interrupted or if the dilution is left in the sprayer overnight.
Unfortunately, most insecticides are not effective on these bees since they only cut the leaves and do not chew on them.
This article has a few non-chemical suggestions to help reduce damage to desirable plants:https://extension.colostate.edu/topic-areas/insects/leafcutter-bees-5-576/
When applying Suspend Polyzone Insecticide it is just a light application to areas applying until wet but not dripping. We have an outdoor perimeter spraying video that can help show how fast to apply and other tips.
Suspend Polyzone Insecticide may only kill the ants that come in contact with a treated area. It is not taken back to the nest. Leaf cutter ants can be a difficult pest to get rid of. The colonies are large and the ants make their own food so poison baits only have limited effects on this species of ants. According to several university websites, Maxforce Complete Granules containing hydramethlynon are some what effective, though they will usually eliminate only about 30% of a large colony in one treatment and will need to be reapplied several times. DeltaGard granules is one of the only products actually labeled for leaf cutter ants. The product label recommends treating the mound directly and lightly watering the granules in. Again, it may take several treatments to get the desired results. We also recommend contacting your local cooperative extension office to see if they have any recommendations for products that have worked for other people in your region.