. Eastern forest insects . COURTESY CONN. AGR. EXPT. STA. Figure 174.—Damage and webbing by the pine false webworm, Acantholyda er- ythrocephala. Acantholyda zappei (Rohwer), the nesting-pine sawfly, occurs in southern Canada and the Northeastern, Central, and Lake States. Its hosts are various species of pines such as red, jack, Austrian, pitch, and Japanese red. A full-grown larva is green, with a brown head and a dark green dorsal stripe, and is about 18 to 25 mm. long. Eggs are laid singly on young needles of the current year's growth from late June to early July. Young larvae spin webs ab
. Eastern forest insects . COURTESY CONN. AGR. EXPT. STA. Figure 174.—Damage and webbing by the pine false webworm, Acantholyda er- ythrocephala. Acantholyda zappei (Rohwer), the nesting-pine sawfly, occurs in southern Canada and the Northeastern, Central, and Lake States. Its hosts are various species of pines such as red, jack, Austrian, pitch, and Japanese red. A full-grown larva is green, with a brown head and a dark green dorsal stripe, and is about 18 to 25 mm. long. Eggs are laid singly on young needles of the current year's growth from late June to early July. Young larvae spin webs about themselves and fasten the outer threads to the needles. Needles are cut off near the base and drawn into the web where they are consumed. Webs are increased in size as the larvae 434
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Photo credit: © The Bookworm Collection / Alamy / Afripics
License: Licensed
Model Released: No
Keywords: ., bookcentury1900, bookcollectionbiodive, booksubjectforestinsects
