. Fruit farming: practical and scientific, for commercial fruit growers and others. Fruit-culture. Spraying by Knapsack Pump. Years ago I once kept account of the eost of spraying an acre of bush apple trees 11 years old, planted 9ft. apart (too close), using a Vermorel knapsack. It took 107 gallons of water (43 knapsacks of 2J gallons); 10 ozs. of Paris green at 2s. per lb., Is. 3d. ; 91bs. of copper sulphate at 3fd. per lb., 3s.; 121bs. of lime at jd. per lb., 3d.; labour (one man 2| days at 4d. per hour), 9s.; cartage of water and use of pump, water, say. Is. 6d.; total 16s.; 16s. divided b
. Fruit farming: practical and scientific, for commercial fruit growers and others. Fruit-culture. Spraying by Knapsack Pump. Years ago I once kept account of the eost of spraying an acre of bush apple trees 11 years old, planted 9ft. apart (too close), using a Vermorel knapsack. It took 107 gallons of water (43 knapsacks of 2J gallons); 10 ozs. of Paris green at 2s. per lb., Is. 3d. ; 91bs. of copper sulphate at 3fd. per lb., 3s.; 121bs. of lime at jd. per lb., 3d.; labour (one man 2| days at 4d. per hour), 9s.; cartage of water and use of pump, water, say. Is. 6d.; total 16s.; 16s. divided by 494 trees equals nearly |d. per tree. Since then the fashion of sprays has changed to lead arsenate and lime sid- phur at a higher cost. The present cost would be three or four times as much- say £3 per acre, or IJd. per Four Oaks Knapsack Sprayer at 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 Hooper, Cecil H. London, The Lockwood press
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Keywords: ., bookcentury1900, bookdecade1920, booksubjectfruitculture, bookyea
