. Bulletin. Agriculture -- Ontario. ;. A Scale,;; greatly enlarged. _^. Fig. 26. Scales on a twig. becomes covered with a scale and remains for the rest of its life sucking the sap of the tree. Twice in the season the insect sheds its skin and assumes a larger one, leaving the cast-off portion still attached to the new. In the autumn the adult female lays her eggs and dies. The lime- sulphur wash recommended for the San Jos6 Scale is a complete remedy for this one also. When inconvenient to make it, good results may be obtained by a thorough wash with lime alone (one pound and a half qu
. Bulletin. Agriculture -- Ontario. ;. A Scale,;; greatly enlarged. _^. Fig. 26. Scales on a twig. becomes covered with a scale and remains for the rest of its life sucking the sap of the tree. Twice in the season the insect sheds its skin and assumes a larger one, leaving the cast-off portion still attached to the new. In the autumn the adult female lays her eggs and dies. The lime- sulphur wash recommended for the San Jos6 Scale is a complete remedy for this one also. When inconvenient to make it, good results may be obtained by a thorough wash with lime alone (one pound and a half quickly slaked to a gallon of water), applied after the leaves fall in the autumn and again before the buds open in the spring. When the lice are first hatched out and are running on the limbs they may be destroyed with kerosene emulsion or a whale-oil soap solution. The Scurfy Bark=Louse (Chionaspis fiirfurns), Fig. 2j, also attacks the apple and some other fruit-trees, but is not so widely distributed as the preceding species, which it somewhat resembles in shape. The eggs are of a purplish color, and the adult scale is white and conspicuous. The figures will enable anyone to distinguish the two species. Their life- histories and habits are the same, and consequently the same treatment may be adopted for 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 Ontario. Dept. of Agriculture. Toronto : The Dept.
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