If you can't find those in Europe, I use products from this company: Horticulture - The Nutrient Company
I'm not sure their shop reopened post Brexit/Covid, but they sell through Amazon.
They sell one formula that is bacteria-based and another that is mycorrhizal fungi-based. I honestly don’t know which I’d recommend, as both are beneficial. It may not wise to use both at once, as they can compete and predate each other. I don’t know if those specific species do, but the fact that they are not combined in a single products suggests being wary.
How did I miss that... Thanks for the heads up Ray, I'll send a message to the gentlemen behind this brand.
Perhaps they have insightful comments to offer.
My big mistake...buying orchids in autumn or too late in the spring. They will need re-potted in my environment but there is a optimal time to do that....
I agree with the other stuff mentioned. It is best to do the research and match the infliction with the right cure. With more and more insect resistance, the pesticides recommended do change and one needs to keep up with the studies.