Here's what I did with the Lace bugs on my Azaleas. I used Orthene at the recommened rate. Then 6 weeks later I sprayed again. After the bugs were under control and the color was comming back in the Azalea, I fertilized the plants 2 times. The plants look great now! You didn't say if the color is back in your plants. If it is their probably fine.
If you choked a Smurf, what color would it turn?
I'd give my right hand , if I could be ambidextrous!