The lace-winged adults lay eggs in June for a second brood that
appears in July. When the nymphs are hatching the undersurface of leaves
appears covered with drops of molasses, later this surface has the brown
varnished appearance so characteristic of lace bug injury. The bushes have
a generally yellowed, sickly appearance but seldom die. This species also
infests laurel, with the leaf stippling usually white, and azaleas.
Control. Spray in early June as for the azalea lace bug. Repeat in 2
weeks for late-hatching nymphs, and repeat for July brood if necessary.
Be sure to use plenty of pressure and direct spray toward underside of
SYCAMORE LACE BUG (Corythucha ciliata).
Confined to sycamore but pres-
ent wherever they are grown. The white lacy wings of the adult
lack the dark markings of some species (Figure 18). It hibernates under
bark and in spring glues black eggs to underside of leaves. The foliage
turns white and may be severely injured by midsummer.
True bugs, feeding on foliage of many ornamentals and
FOUR-LINED PLANT BUG (Poecilocapsus lineatus).
This is generally present
east of the Rocky Mountains but apparently seldom noticed by gar-
deners. Numerous small round depressed spots appear on tender termi-
nals, each spot marking where a bright red nymph or a greenish-yellow
adult with four black stripes down its back has sucked out plant sap. On
chrysanthemum the small circles are usually tan and often numerous
enough to cripple the new tips, on mint the spots are dark brown. For-
sythia, acanthopanax (5-leaf aralia), and many other shrubs are affected,
as well as aconite, delphinium, dahlia, and other perennials. Currant
leaves may turn brown and drop with new shoots wilting. Slender white
eggs inserted in slits in canes of currant and other plants hatch in May.
There is only one generation, with feeding and injury ceasing about mid-
Control. These creatures are active and hard to reach with a spray, but
I have had good luck with rotenone dust, sending a cloud up through
the plants. DDT is now recommended by some workers. The injury is
conspicuous but not too serious on chrysanthemums for they can usually
be pinched back beyond the affected portion.
LEAF-FOOTED BUG (Leptoglossus phyllopus).
A southern insect with a
peculiar leaf like expansion of its hind legs (Figure 20C). The bugs
are large, 3/4 inch long, dark, with a transverse yellow line across the
wing covers, and are general garden pests. They are fond of cowpeas, egg-
plant, peas, potatoes, beans, tomatoes, and strawberries.