Insect Injury Control
From Bugwoodwiki
Little Carpenterworm, Prionoxystus macmurtrei (Guerin)
Larva pink to white, dark head and thoracic shield, 2.25 inches (57 mm); adult gray-mottled moth; life cycle 2 to 3 years. Trunks and branches of sawtimber and shade trees; prefer red oaks; mine under bark, and gallery in wood .4 X 6 inches (1X15cm); frass of wood chips and excrement pellets; causes lumber degrade, disfigures ornamental trees.
Beech borer, Goes pulverulentus(Haldeman)
roundheaded larva, white, legless, cylindrical, about 1.5 inches (37 mm); adult brownish-gray longhorned beetle; life cycle 3 to 5 years. Trunks of saplings and poles of red oaks; attacks are clustered; galleries are about .4 x 8 inches (0.9 x 20 cm); grayish frass with fibrous shreds extruded in ribbons; degrade, entries for decay, stem breakage.
Spotworm borer, Agrilus acutipennis (Mannerheim)
Larva is slender, flattened, white, about 1.3 inches (32 mm) long; adult beetle is narrow, dark metallic blue, about .5 inches (12 mm) long; a generation requires 2 years. Trunks over .5 inch (12 mm) in diameter in white oak group, particularly heavy on overcup oak in river bottoms; larvae tunnel spirally in outermost growth ring; spot stains and frass-packed tunnels are defects that degrade lumber.
Flatheaded appletree borer, Chrysobothris femorata (Olivier)
Larva is flatheaded, white, about 1 inch (25 mm) long; adult beetle is oval, flattened, greenish bronze, about .6 inch (16 mm) long; one generation per year. Trunks and branches of red and white oaks of all sizes; larvae bore into phloem and outer sapwood; mines girdle and kill small trees; newly transplanted trees and those weakened or stressed are most susceptible.
Oak branch borer, Goes debilis (LeConte)
Roundheaded larva, legless, yellowish-white, about .6 inch (15 mm) long; adult longhorned beetle, mottled reddish-brown and gray; life cycle 3 to 4 years. Small branches and terminals about .3 to 1.5 inches (9 to 37 mm) in diameter, mainly white oaks; attacks near crooks and branch crotches; galleries about .2 x 3 inches (6 x 75 mm); yellowish frass protrudes from elongate entrance hole; infested stems become swollen, and often break or die back
Oak-stem borer, Aneflormorpha subpubescens (LeConte)
Roundheaded larva slender, about .7 inch (18 mm) long; adult narrow, light brown, spine on the third and fourth segments of antennae. One generation per year. Seedlings and sprouts about .5 to 1 inch (12 to 25 mm) diameter; red and white oaks; larva bores down center of stem, cutting off sections, burrows to stem base or roots to overwinter; frass is ejected through row of small holes in bark, kills large numbers of seedlings and sprouts in Southeast.
References
J. D. Solomon, F. I. McCracken, R. L. Anderson, R. Lewis, Jr., F.L. Oliveria, T.H. Filer, and P.J. Barry
