. Annual report. Entomological Society of Ontario; Insect pests; Insects -- Ontario Periodicals. 1917 ENTOMOLOGICAL SOCIETY. 127 of borer work. The kerosene emulsion had no"appreciable effect, nor did it injure the trees, though it was applied in large quantities. The treatments applied and results obtained may be quickly ascertained by consulting Table II. Kerosene emulsion applied puro in the fall seems to have had some effect, but one cannot. Effects of borers on nursery stock. The tree in the centre is uninjured, and one year younger than the other two. Note the comparative size and b
. Annual report. Entomological Society of Ontario; Insect pests; Insects -- Ontario Periodicals. 1917 ENTOMOLOGICAL SOCIETY. 127 of borer work. The kerosene emulsion had no"appreciable effect, nor did it injure the trees, though it was applied in large quantities. The treatments applied and results obtained may be quickly ascertained by consulting Table II. Kerosene emulsion applied puro in the fall seems to have had some effect, but one cannot. Effects of borers on nursery stock. The tree in the centre is uninjured, and one year younger than the other two. Note the comparative size and beauty of uninjured tree., safely draw conclusions. Thirty per cent, infestation is high, though the average number of larvsc per tree is a minimum. The carbolineum applied pure and its emulsion gave almost absolute control and seems to me a very simple and effective means of control under nursery Please note that these images are extracted from scanned page images that may have been digitally enhanced for readability - coloration and appearance of these illustrations may not perfectly resemble the original Entomological Society of Ontario; Ontario. Dept. of Agriculture. Toronto, The Society
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