I just came in from the veggie garden, after pulling up and bagging a bunch of mite-infested plants. I have a feeling it's going to get a lot worse before it's finished.
If there was any benefit to it at all, it gave me a chance to get a good look at the soil under the plants, which was better than I had expected, and also to see that I seem to have more of a slope than I had realized. I thought it was almost perfectly flat, but apparently not. I'd had the water running under the squash at one end, and I can easily see how it's traveling across the garden to the far end.
Also in my search for control methods, I learned that the hot and dry conditions are particularly beneficial for large spider mite infestations. One possible method of slowing them down is to add humidity. Thanks a heap. Somehow I just can't see that happening in this weather, without flooding the garden.
One of the sprays I have on hand in Bayer Nutria, which I've never used before. It doesn't exactly say it will kill the mites, but is supposed to protect against them. It also says "not to be used in temps of over 90 degrees". Oh, hooray. So I'd be out there at 4 in the morning, trying to spray? Good grief. I've gone to let the dogs out at 2 a.m. and it's still 92 degrees!
I found a product online called Liquid Ladybug, coming out of Austin, that looks like it might be interesting. I ordered a quart of it to see what it will do. It's supposed to be entirely safe, an organic miticide, and can be used at any time. Has anyone ever heard of it or tried using it? I'll attach a link. They have a little video that goes along with it. I just hope it works.
Here is a link that might be useful: Liquid Ladybug