C. Asaro et Dc. Allen, History of a pine false webworm (Hymenoptera : Pamphiliidae) outbreak in northern New York, CAN J FORES, 31(1), 2001, pp. 181-185
Citations number
36
Categorie Soggetti
Plant Sciences
Journal title
CANADIAN JOURNAL OF FOREST RESEARCH-REVUE CANADIENNE DE RECHERCHE FORESTIERE
A sustained outbreak of pine false webworm, Acantholyda erythrocephala (L.)
(Hymenoptera: Pamphiliidae), in northern New York is unprecedented in its
extent and duration. White pine, Pinus strobus L., is the preferred host in
this region. What began as a 30-ha infestation of this introduced sawfly i
n 1981 affected 5440 ha of white pine distributed throughout 231 000 ha in
St. Lawrence and Franklin counties by 1995. Occurrence of A. erythrocephala
in the United States has been documented in eight northeastern and one nor
th-central state (Connecticutt, Massachusetts, Maine, New Hampshire, New Je
rsey, New York, Pennsylvania, Vermont, and Wisconsin) and three Canadian pr
ovinces (Alberta, Newfoundland, and Ontario). Possible explanations for the
occurrence and tenure of the current outbreak in NewYork are discussed.