Ali - Do you really think 10 weeks was not enough time to give the Ambyselius time to do their job?
You will see that I carried out a certain amount of destruction with regard to the infested plants.
So would it be reliable to say that after hatching these mites will not produce eggs within 2 weeks? Even in the most favourable conditions?
Honestly, I'd rather poison myself slightly then recover than go through all of that trouble with the oil-based pesticide (would not SB Plant Invigorator do the same job?). Besides, I don't have a binocular microscope - not yet anyway! But I would not use any dangerous pesticides where they might harm bees.
You have my admiration for having both the time, and the patience, to carry out those procedures! The truth is, I would have the patience if I had the time and the right equipment.
There's not much info out there about Brevipalpus, but I stumbled upon this video, in case it is of assistance to anyone -
MissOrchidGirl - How to make and apply your own DIY insecticide for Orchids - Complete, step by step guide