If you want to go with biologicals, lady bugs will work, but you need a crazy number of them, and it must be california lady bugs, no other ones will work. Now the best biological is a combination of predatory nematodes applied to the root zone with a watering, and for the leaves and more so on the surface area you want to use Orius and Amblyseius cucumeris/hypoaspis for the above ground treatment. now dont use these biologicals with lady bugs as they will try to eat them. Thats the issue with using these methods, you really need to know your predatories before you can mix them for proper effectiveness.