. Diseases of economic plants. Plant diseases. 40 DISEASES OF ECONOMIC PLANTS small garden or a large commercial orchard. In either event proper apparatus is needed. A machine of good quality is more durable and cheaper in the end. In selecting a pump the fol- lowing points1 should be given consideration: — 1. The air chamber should be sufficiently large to ensure a steady spray and be so placed on the pump that the latter will not be rendered top-heavy. 2. Some means of keeping the spraying mixture thoroughly stirred is essential. 3. The working parts should all be of brass and be so arranged
. Diseases of economic plants. Plant diseases. 40 DISEASES OF ECONOMIC PLANTS small garden or a large commercial orchard. In either event proper apparatus is needed. A machine of good quality is more durable and cheaper in the end. In selecting a pump the fol- lowing points1 should be given consideration: — 1. The air chamber should be sufficiently large to ensure a steady spray and be so placed on the pump that the latter will not be rendered top-heavy. 2. Some means of keeping the spraying mixture thoroughly stirred is essential. 3. The working parts should all be of brass and be so arranged that they can be examined with- out undue difficulty. 4. The pump when mounted should not extend above the bar- rel more than is necessary. 5. It is desirable to have the device for attaching the pump to the barrel so arranged that the pump can be readily mounted on, or removed from, the barrel. 6. The different parts of the pump should be so con- structed that they can be readily taken apart, especially those which inclose the valves. 7. All points for attachment of the hose should be cut with threads of standard Fig. 11. — Bucket pump showing hose, nozzle, and bucket attach- ment. After Gould Mfg. Co. Modified from the Maryland Agr. Exp. Sta. Rpt. 13, p. 73, 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 Stevens, Frank Lincoln, 1871-1934; Hall, John Galentine, 1870- joint author. New York, The Macmillan Company
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Keywords: ., bookauthorstevensf, bookcentury1900, bookdecade1910, bookyear1910
