. Horticulture; a text book for high schools and normals, including plant propagation; plant breeding; gardening; orcharding; small fruit growing; forestry; beautifying home grounds; the soils and enemies involved. owing Crimson Clover; 579, Utilizing Crimson Clover; 646,Crimson Clover Seed; 690, Field Pea; 693, Bur Clover; 716, Management ofSandy Lands; 730, Button Clover; 757, Commercial Varieties of Alfalfa; 761,Management of Muck Land; 797, Growing Sweet Clover; 805, Drainage ofIrrigated Lands; 820, Sweet Clover: Utilization; 836. Sweet Clover: Harvest-ing; 865, Irrigation of Alfalfa; 921,
. Horticulture; a text book for high schools and normals, including plant propagation; plant breeding; gardening; orcharding; small fruit growing; forestry; beautifying home grounds; the soils and enemies involved. owing Crimson Clover; 579, Utilizing Crimson Clover; 646,Crimson Clover Seed; 690, Field Pea; 693, Bur Clover; 716, Management ofSandy Lands; 730, Button Clover; 757, Commercial Varieties of Alfalfa; 761,Management of Muck Land; 797, Growing Sweet Clover; 805, Drainage ofIrrigated Lands; 820, Sweet Clover: Utilization; 836. Sweet Clover: Harvest-ing; 865, Irrigation of Alfalfa; 921, Principles of Liming of soils; 931, Soy Beansin Systems of Farming in the Cotton Belt. The Fertility of the Land, Roberts, Macmillan Co.; Crops and Methodsfor Soil Improvement, Agee, Macmillan Co. CHAPTER XXVPRINCIPLES OF SPRAYING Too few who need to spray know the principles of spraying. Itis necessary that the grower know what to spray for, and what andwhen to spray (Fig. 211). There are several purposes in viewwhen a spraying compaign is conducted. (1) To prevent disease,(2) to fight insects which suck juices of plants, (3) to kill insectswhich eat the leaves or other tissues of the plants. The material. Fig. 211.—For spraying apple orchards lime-sulfur and arsenate of lead (shown above)are better than Bordeaux mixture and arsenate of lead, (shown below). Upper and lowerlots each from a tree sprayed three times. (Illinois Station.) used for these three purposes are of different character. Oneshould not be used for the other, but sometimes the poison spraysfor chewing or eating insects may be combined with the materialsused to prevent disease. Spraying pays in dollars. The best orchardists spray spray for definite purposes, with suitable materials at propertimes. Spraying will then improve the quality of the product andincrease the yield. This is true of both fruits and vegetablecrops.(Fig. 212). Spray Materials to Prevent Disease.—Nearly all of the pl
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Keywords: ., bookcentury1900, booksubjectfruitculture, booksubjectgardening
