. Annual report. Entomological Society of Ontario; Insect pests; Insects -- Ontario Periodicals. Fig. 51. The Oyster-shell Scale. Fig. 52. Grape-vine flea- beetle and larva, much en- larged ; also leg, greatly Fig. 53. Grape-vine Flea-beetle, showing beetles and larva; at work. The Grape Vine Flea-Beetle, Haltica chalybea, 111. (Figs. 52 and 53). This is another well known grape insect, but one which often does much injury in Ontario to the foliage of Virginian creepers. When the dirty, yellowish-brown grubs, which have black shining bristle-bearing tubercles are found on the vines
. Annual report. Entomological Society of Ontario; Insect pests; Insects -- Ontario Periodicals. Fig. 51. The Oyster-shell Scale. Fig. 52. Grape-vine flea- beetle and larva, much en- larged ; also leg, greatly Fig. 53. Grape-vine Flea-beetle, showing beetles and larva; at work. The Grape Vine Flea-Beetle, Haltica chalybea, 111. (Figs. 52 and 53). This is another well known grape insect, but one which often does much injury in Ontario to the foliage of Virginian creepers. When the dirty, yellowish-brown grubs, which have black shining bristle-bearing tubercles are found on the vines, they may be destroyed by a Paris green spray 1 oz. in 10 gallons of water. All fallen leaves and rubbish should be burned in autumn to prevent the mature beetles from hibernating near the vines. The Violet Saw-fly, Emphytus canadensis, Kirby. Pansies and violets, which are always favourites in gardens, are sometimes seriously attacked by the false caterpillars of this sawfly. These larvse which are smooth and bluish-black in colour are about ^ an inch in length when mature. When in their younger stages they have the habit of eating little holes in the leaves, but as they reach maturity they feed mostly along the edge of a leaf. These false caterpillars when at all numerous do a great deal of harm, oftentimes completely defoliating plants. At Ottawa the species is of common occur- rence, some seasons doing considerable damage. Last June and the first half of 'Tuly the larvae were very abundant on violets on the grounds of the Cen- tral Experimental Farm. In Canada, Dr. Fletcher tells me injuries by the Violet vSawfly, have not been reported from very many localities. In 1898 considerable injury was done in large beds of violets grown under glass in Toronto. As the larvae feed as a rule during the night. Dr. Fletcher recom-. Please note that these images are extracted from scanned page images that may have been digitally enhanced for readability - coloration and appearance of t
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Keywords: ., bookcentury1800, bookdecade1870, booksubjectinsectp, bookyear1872
