Sodak

I brought about 10 bananas in pots indoors about 2 weeks ago, and take them out on warm days to sun. I noticed yesterday that most of the plants were covered with spider mite webs on top and bottom of the leaves. The mites exploded when I brought them in. I didn't have any problem with them while they were out.

I understand mites love dry, calm air which obviously contributes to the mite explosion. I can spray with oil, soap, cool water, whatever. But those are only temporary solutions that kill the existing mites. I do not expect, nor care if the fruit are edible if I ever get any, but grow them only as ornamentals.

Is there a long lasting miticide that can be applied that will protect the plants form infestation for several months? Are they effective?

Any suggestions will be greatly appreciated.

Thank you!