I've been battling a spider mite infestation on my Angel Datura tree, which lives outside year round. I've tried a few different remedies, but nothing seems to work for very long.
So far, the remedies I've tried include:
1. Repeat applications of garlic-water tincture, canola oil-water mixture, and then dishsoap-water mixture. All of which had small control effects but no permanent cure.
2. Insecticide spray (pyrethins), several treatments. No change.
3. Physical removal of mites with damp cloth, spraying water on leaves as often as possible. Again, controls the population but doesn't get rid of them.
I've checked out this thread
, and next I'm trying a Neem or Orange Oil treatment. I've also repotted and fertilized and trimmed off the more affected leaves and branches. I'm getting ready to burn the tree just so the mites don't win.
Does anyone have suggestions of things that have cured their plants? (note: I can't use predator mites because of the expense.)