There aren’t any evergreens that are particularly resistant to spider mites. The good news is that they is an organic control that works well….Neem Oil. If you replant in the same area, watch for them and, if they show up just apply the Neem Oil according to the directions on the product. http://www.bonide.com/products/insect-and-disease-control/view/024/neem-oil-conc