I found this year that by leaving a few volunteer sunflowers (the big kind, because the bird feeder dropped them in the garden) I have almost no lace bug problem in my eggplant. They all went for the sunflowers instead (companion planting). The eggplant is what they usually hit hard. Previously to get them off the eggplant I'd go in with a band of masking tape (pull a strip maybe 8 - 10" off the roll and stick it to itself in a loop with the sticky outside and put your fingers through the loop of tape and use it to roll the bugs, eggs, and babies right off the backs of your leaves). This is a little tackier than one of the Dollar Store garment rollers, but not so strong that it rips the leaves, and I use the 2" wide light brown tape. I find the mechanical removal was more efficient than trying sprays or hitting plants with water hard.