If you can afford it, get some amazing doctor zymes and soak your plants. Tops and bottoms of leaves, branches, stalks, everything. Here's a link for a free sample, you just have to pay shipping:
www.doctorzymes.com/wizard
If the infestation is bad, bum a couple cigarettes from a neighbor or friend and make nicotine poison. You just break the cigs up into 91% isopropyl alcohol, run it through a coffee filter after a bit, and put in a spray bottle. Then, fil the bottle up with water and hose those sorry suckers.
I hope this helps.