Bayer tree and shrub(BATS) liquid is good too-- 1 teas per gallon lasts 6 mo to a year depending on the concentration of imidicloporid. thre are 2 different strengths available. the 1.47 % (not looking at the bottle--but those numbers are close) is good for 6 mos. Fertilome makes a similar product, same ingredients, smaller bottle less $$
On another forum Thad Skaggs (he is an expert) suggested a product called Forbid 4F was a new miticide product he had read about that seemed would be effective.
What did I have to loose? I planned to discard all my plants that were in bad shape anyway.
Actually found a source for a small amount of this product, at a price I was willing to pay, ordered it and sprayed it on all my ailing plants a week ago.
As much as I denied the possibility of mite damage, I can only say it is amazing the difference in these plants in a week's time.
They have begun to show new growth that looks normal.
Can mites do that kind of damage that can be reversed so quickly? I have done nothing different, except mist them once with Forbid 4.
Forbid 4 works by (this is not at all the scientific terminology) the mist being absorbed into the upper surface of the leaf, protecting the plant for all kinds of mites, who die when ingesting the sap in the plant. (It actually works on the same principle that the compound you put on dogs and cats that is absorbed into the blood stream to keep them pest free).
I am anxiously waiting to see what happens as time passes.
I don't have any mite symptoms, but I like the idea of preventives, especially on new plants acquired. I googled to see where I could purchase Forbid 4. It's in the $200.00 range! Where have ya'll bought yours?
I have used Forbid with great success so far. I rotated it with Avid so as to decrease the risk of producing resistant mites. I keep checking my streps with my jewelers loupe to make sure that success is continued! I will NOT be a victim again to those evil and insidious little sap suckers! A 30x loupe(at least) and at least 2 different miticides will always be in my arsenal.
I use Marathon in all my plants as a preventative. Soil mealies can be dormant for quite a long time. And since I use cap matting for many of my violets, I don't take any chances. I don't worry about the individually wicked violets for obvious reasons.
I haven't experienced thrips yet, but there is a first time for everything. I fear thrips most of all because of the threat of INSV.