spider mites in greenhouse
What can I use to get rid of spider mites in my greenhouse?
Crook County Oregon spider mites
Thanks for your question about spider mite control in your greenhouse. I don't know whether you're a home gardener, or have a larger operation, but here's an OSU article about the use of predatory mites against spider mites, that you might find helpful. This method avoids the use of chemicals. Here is a link to a website of suppliers of these predatory mites.
I hope this is helpful for you. Good luck!