| Spider mites: Worm tea does not work (for me) OK, I think I have tested this thoroughly enough, 3 sprayings, 3 to 4 days apart, 3/4 cup of Our Vial Earth product per gallon. New sprayer. All mites appear to be alive and well 4 to 5 days after last spraying.
Could be that my fungicide residue is causing a problem, or that Our Vital Earth is selling more than they can produce in full concentration, or ???. So for now, I will not be using worn tea for mites.
I just sprayed my collection with Bayer Advanced 3 in 1 (not the Garden Safe stuff that is neem oil), and I can find no living mites. Reports on the Bayer product say it is effective and gentle on a highly mixed collection. Time will tell if this product can replace the neem oil that has such bad effects on some plants.
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Cynthia
Prescott Orchid Society |