Best molecule to fight spider mites

[rbarata]

Here in te EU, the most efficient pesticides are controlled substances and can onçy be bought and used by a qualified person (which I am not).

I have found that a friend of mine has all the necessary authorizations to buy those products, but since the ones I used to apply were prohibited, at this moment I really don't know what is the best product to use on orchids.

So, what is the best active ingredient against spider mites?

Thank you!

[Roberta]

Can you get anything in the Pyrethrin class? I use bifenthrin, which is sold primarily for termites, but it's rated for spider mites also.

[estación seca]

Dihydrogen oxide will kill them, including eggs, but it needs regular applications to all plants surfaces.

[Roberta]

That will require submerging the plant, I think, to keep enough of it for long enough on the undersides of the leaves where the beasties hang out.