Winter Leaf Drop. Moving your citrus indoors early will help. Lets say you maintain you home at 68F-20C and you move your container citrus indoors at 45F- 7C. Of course your tree will be shocked. Moving the tree in at about the same temp. as your indoor and outdoor heat, This will greatly reduce WLD. You may find some leaf loss do to acclimating. Give your citrus the best light from indoors, East or Southern. Don't squeeze the most for container outdoor growing citrus and bring them indoors at near freezing. WLD would be a sure thing Best of luck. Dale