What is the best preventative for spider mites?
It's time to move my aroids indoors for the winter. I have built an indoor greenhouse in my outbuilding and would like to know the best prevention for spider mites. I haven't noticed them yet, but sure they will come.
I've read several suggestions of misting with an alchohol and water mixture. Is this safe for aroids? I have also read that oil treatments are effective, but it sounds like a laborious task with 60-70 plants treating each leaf. I would like to stay away from harsh chemicals if at all possible.
I keep the room at 70-75 degrees. I will also put in a humidifier to keep the humidity up. What level should I maintain?
Any help would be greatly appreciated.