. The Bulletin of the North Carolina Department of Agriculture. Agriculture -- North Carolina. 14 The Bulletin. part at a time, and as it slakes dash in a little cold water, as needed, to keep it from boiling over or to keep it from becoming dry. Keep the fire going and stir the mixture frequently. As the slaking ceases, keep it boiling from the fire for half an hour longer, then dilute with water (cold is all right) to make the 50 gallons; strain through a fine wire screen or cloth to remove all sediment, and spray. Notes About the Lime-sulphur Wash.—The Lime-sulphur Wash not only kills the s
. The Bulletin of the North Carolina Department of Agriculture. Agriculture -- North Carolina. 14 The Bulletin. part at a time, and as it slakes dash in a little cold water, as needed, to keep it from boiling over or to keep it from becoming dry. Keep the fire going and stir the mixture frequently. As the slaking ceases, keep it boiling from the fire for half an hour longer, then dilute with water (cold is all right) to make the 50 gallons; strain through a fine wire screen or cloth to remove all sediment, and spray. Notes About the Lime-sulphur Wash.—The Lime-sulphur Wash not only kills the scales with which it actually comes in contact, but it forms a thin, firm coating over the twigs upon which the young insects seem to find difficulty in settling down to feed and grow. As this coating is gradually worn off by rains or by growth of the tree, it is important that the wash be applied as late in the winter as possible, so that the. Fig. 5.—Steam-boiler outfit for making Lime-sulphur Wash for orchard of 35,000 peach trees. Moore County, N. C. (Photo by Sherman.) coating shall be present when the insects begin to breed in the spring. The best time to treat the trees, therefore, is in late winter—as late as possible, so the work is completed before the buds have opened. Trees that are very badly infested may be given two treatments, the first in late November or December, and the second as late as possible, as just di- rected (usually in February) ; but once the scale is subdued, one appli- cation late each winter is sufficient. About a week after the trees are treated they will look almost as white as if they had been whitewashed, and it is then an easy matter to detect any places which were missed in the application. Absolute thoroughness must be the rule in treating trees for this scale. Spray the trees from two or three sides to be sure that it is done thoroughly, and then if missed spots are noted later go over the trees again and complete the job. It is wel
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