Ontario Sessional Papers, 1908, . currants, gooseberry, wild red 64 THE REPORT OF THE No. 19 raspberry, wild black currant, wild grape, Airginia creeper, elder, red-osierdogwood, mountain maple, black maple, silver maple, white asli, black asb,beech, blue beech, ironwood, basswood, alder (Alnus incana), poplar (Popu-lus alba), rock elm, American elm, prickly ash, butternut, black walnut,catalpa, hazel-nut, pin-cherry, bur oak, English oak (Quercus rohur), sweethickory, and many species of herbs near infested trees. Remedies : (1) The lime sulphur spray. This must be very carefully put
Ontario Sessional Papers, 1908, . currants, gooseberry, wild red 64 THE REPORT OF THE No. 19 raspberry, wild black currant, wild grape, Airginia creeper, elder, red-osierdogwood, mountain maple, black maple, silver maple, white asli, black asb,beech, blue beech, ironwood, basswood, alder (Alnus incana), poplar (Popu-lus alba), rock elm, American elm, prickly ash, butternut, black walnut,catalpa, hazel-nut, pin-cherry, bur oak, English oak (Quercus rohur), sweethickory, and many species of herbs near infested trees. Remedies : (1) The lime sulphur spray. This must be very carefully put on as thescales for the most part in fall, winter, and spring, are to be found on thelower side of the branches. (2) Kerosene emulsion, applied when the tree is dormant, preferablyas soon as the leaves fall in autumn. Dilute the stock emulsion with fourparts of water. (3) Kerosene emulsion, flour kerosene, or whale-oil soap at ordinarystrength applied as soon as eggs have hatched, which must be determinedbv actual observation each Fig. 24. Twig of plum infested with Lecanium or New York Plum Scale, (a) The oldscale of the previous summer empty and lifeless; (b) the immature winteringscales, which will become full grown like (a) next June.
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