. Annual report. Entomological Society of Ontario; Insect pests; Insects -- Ontario Periodicals. 1912 ENTOMOLOGICAL SOCIETY. 57 Sandra and xVndromeda) before coming out upon the broad open marsh which borders the creek near its mouth. The deposits from the creek at its mouth and the action of the winter ice have formed a patch of drier land here, which is continued along the shore as a narrow marginal ridge. Here the trees are different from those in the swamp behind, being mostly cedar, balsam, white spruce, silver maple, black and green ash, with large willows about the margin of the creek.
. Annual report. Entomological Society of Ontario; Insect pests; Insects -- Ontario Periodicals. 1912 ENTOMOLOGICAL SOCIETY. 57 Sandra and xVndromeda) before coming out upon the broad open marsh which borders the creek near its mouth. The deposits from the creek at its mouth and the action of the winter ice have formed a patch of drier land here, which is continued along the shore as a narrow marginal ridge. Here the trees are different from those in the swamp behind, being mostly cedar, balsam, white spruce, silver maple, black and green ash, with large willows about the margin of the creek. These woods have been, on the whole, very free from serious attacks by insects for many years past. The only insect that has been responsible for the killing of trees in large numbers is the Larch Saw-fly {Lygaeonematus ericJisonii Hartgn.). which has been with us for about twelve years. Well do I remember its 'first appearance at De Grassi Point, although I am not sure as to the exact year. It was either 1898 or 1899, though they may have been present in small numbers a year or two earlier. Up till this time, part of the tamarack swamp was one of. Fig. 24. Larch Saw-fly—a, adult; ft, cocoon; c, terminal twig of larch, showing eggs in slits made by the female saw-fly.—c and 6 much enlarged. the loveliest spots I have ever seen. This was a part near the creek where the trees, though not large, grew fairly closely together, but offered glimpses of beautiful vistas between their grey trunks and soft feathery green foliage. No fallen trunks obstructed one's way and the ground was carpeted with deep sphagnum moss and soft grasses, among which pitcher-plants, clumps" of the Showy Lady's- Slipper, the beautiful Calapogon and the fragrant Pogonia, besides a number of other orchids, grew in profusion. In the summer of 1898 (if this year be correct) I visited the swamp, as I do every year, and found to my horror that most of the trees were nearly bare and infested with myriads o
Size: 1861px × 1342px
Photo credit: © Library Book Collection / Alamy / Afripics
License: Licensed
Model Released: No
Keywords: ., bookcentury1800, bookdecade1870, booksubjectinsectp, bookyear1872
