These are eggs that are covered with a varnish-like substance and are very noticeable when leaves become very infested. Don't apply a control measure until you have positively identified lacebugs and the beginning of damage symptoms. Non-insecticidal control of lacebugs is possible. Some homeowners are able to remove them and keep populations below damaging levels by spraying their plants with a forceful stream of water. Use a garden hose with an adjustable nozzle and spray the undersides of leaves and stems when the lacebugs appear.
Soaps are available that are formulated for controlling lacebugs and other soft bodied insects.
Repeat in one week and later as required. Follow label directions carefully. Make certain that plants have been well irrigated one to two days prior to treatment and avoid applying sprays during hotter, brighter times of the day. Though lacebug injury is currently most severe on azaleas, they also infest other ornamental plant species including pyracantha, hawthorn, lantana and sycamore. Early June is not a good time to transplant tomatoes to the garden.