1-14 of 14 Books

Observations on the parasitism of Isaria farinosa (Dicks.) Fr. with special reference to the larch sawfly (Nematus erichsonii Hartig.)
By Hans Theodor Güssow
The larch saw-fly pest in the Lake District
The larch saw-fly pest in the Lake District
By Sydney John Hickson

Tamarack mortality due to larch sawfly defoliation increases in Minnesota
By L. C. Beckwith
The large larch sawfly
The large larch sawfly
By R. Stewart MacDougall
Nematodes attacking the larch sawfly, pristiphora erichsonii in North Carolina
Nematodes attacking the larch sawfly, pristiphora erichsonii in North Carolina
By Arnold Thomas Drooz
The large larch sawfly (Nematus erichsonii)
The large larch sawfly (Nematus erichsonii)
By C. Gordon Hewitt
The Larch sawfly
The Larch sawfly
By United States. Forest Service. Alaska Region

The large larch saw-fly (Nematus erichsoni)
By C. Gordon Hewitt

Larch sawfly conditions in the Lake States in 1953
By L. C. Beckwith

Larch sawfly conditions in the Lake States in 1954
By L. C. Beckwith
The large larch saw-fly
The large larch saw-fly
By Charles Gordon Hewitt