- Adults are 1/8-inch long.
- There is a transparent lace-like hood covering the head.
- The transparent lace-like wings are held flat over the back.
- Azalea lace bug – two light brown bands on the wings
- Sycamore lace bug – two black spots on the wings
- Rhododendron lace bug – two black spots on the wings and a pale yellow body
- The nymphs are smaller than the adults; they have spines on their bodies; and slightly differ in color.
- Eggs are flask-shaped with the neck to one side.
Biology and Habits:
- Females insert their eggs directly into the plant tissue along a large vein on the underside of the leaf.
- The azalea and rhododendron lace bugs overwinter in the egg stage; hawthorn and sycamore lace bugs overwinter in protected areas as adults.
- Eggs hatch during April or early May (two months earlier in southern states) and the nymphs molt several times over a period of 4 – 6 weeks.
- Typically there are at least two generations per year.
- Azalea lace bug: azalea
- Sycamore lace bug: sycamore, ash, hickory, and mulberry
- Rhododendron lace bug: rhododendron, mountain laurel, azalea, and andromeda
- Hawthorn lace bug: cotoneaster, hawthorn, quince, and pyracantha
- Lace bugs injure and destroy plants by feeding on plant juices on the underside of leaves using their piercing and sucking mouthparts.
- Damaged leaves have numerous small white spots on the top. Severely damaged leaves typically turn yellow or bronze.
- The undersurface of the leaves may be covered with black fecal specks, cast skins, and hatched eggs.