COURTESY OF DUKE UNIV. SCH. OF FOREST. 
FIGURE 160.—Adult and larval galleries of the 
ash borer, Podosesia syringiae fraxini. 
pean ash. The adult is blackish and has a wingspread of 28 to 34 
mm. The forewing is opaque with hyaline streaks between the 
veins to the wing base, and the fringe is dark brown. The hind- 
wing is transparent, with yellowish-brown veins and a sordid 
brown fringe darkening toward the base. The larvae tunnel in 
branches and trunks, excavating galleries several inches long. 
Winter is spent as a larva in the tunnel. Young shade trees and 
trees growing in shelterbelts may be seriously damaged. Control 
is difficult, but the cutting and burning of infested trees should 
be helpful. 
Paranthrene palmu (Hy. Edw.) (fig. 161) occurs from the 
New York area to Florida and along the Gulf Coast at least to 
Mississippi. Its hosts are various species of oaks. In Mississippi, 
it shows a preference for red oaks, especially Nuttail and cherry- 
bark oaks (680). Eggs are deposited in bark crevices at the base 
of the tree, preferably in trees over 12 inches d.b.h. The larvae 
F-519923-22 “% 
FIGURE 161.—Adult and larva 
of Paranthrene palmii. 
