Lemon tree dropping healthy leaves after being brought indoors
For the summer and into the fall I had a Meyer lemon sitting on my south facing porch where it can get quite hot, due to the bricks on three sides reflecting heat. While there, my lemon tree was doing fantastic. As it got cooler at nights, I would bring it in and put back outdoors during the day.
Recently, due to snow and colder temperatures, I've migrated it to a south facing window in my office. The temperature is probably not quite as hot as it's accustomed to, but it's usually between 60-75 degrees. Since I've moved it to its new spot, it's been dropping leaves and flower petals like crazy. I can shake it a little, and a bunch will fall off. I'm not sure what the problem is. The leaves look healthy and green. I have noticed small spider webs, but I saw them when the tree was still outside, and it didn't seem to affect the tree in any way.
If it is suspected to have spider mites, what do I do to get rid of them?
Any help is appreciated. Thanks!