Dear orchid enthusiasts, please help me.
I had some trouble with thrips in spring, I took my orchids outside and treated them over the summer, I sprayed them all before bringing them inside for the winter and now almost 2 months later I found thrips on 3 of my orchids.
I have around 50 orchids and 10 succulents in the room and I'm in Europe.
How do I get rid of them for good?