Horticulture, a text book for high schools and normals, including plant propagation; . Fig. 224.—A double-acting hand pump and tank arranged to spray through two leads ofhose from a farm wagon. From the tower platform the tops of orchard trees may be sprayed.(Indiana Station.) HOSE AND EXTENSION RODS 323 Elevated Towers.—Frequently trees are so high that the manusmg the spray rod needs to stand at a high elevation above thetank. Towers are then built on wagons holding the spray plan makes it possible to reach the upper parts of the treeswhich might otherwise be Fig. 225.—W
Horticulture, a text book for high schools and normals, including plant propagation; . Fig. 224.—A double-acting hand pump and tank arranged to spray through two leads ofhose from a farm wagon. From the tower platform the tops of orchard trees may be sprayed.(Indiana Station.) HOSE AND EXTENSION RODS 323 Elevated Towers.—Frequently trees are so high that the manusmg the spray rod needs to stand at a high elevation above thetank. Towers are then built on wagons holding the spray plan makes it possible to reach the upper parts of the treeswhich might otherwise be Fig. 225.—With a gasoline or oil engine a high pressure may be easily maintained,makes a fine mist. (Michigan Station.) This Hose and Extension Rods.—The hose used in spraying should bestrong and durable. On the other hand it should be easily handledand not too heavy. Extension rods should be of lengths to suit the kind of large trees, rods eight to twelve feet in length are sometimesused. At the base of the rod is a shut-off cock so that the operatorin moving the rod from tree to tree, will not lose much nozzle is attached to the end of the rod. Extension rods areusually made of thin brass surrounded by a bamboo tube. Some- 324 PRINCIPLES OP SPRAYING times they are merely sections of gas pipe made of galvanized or black iron. The inside diameter may be about one-fourth inch. Nozzles.—Spray nozzles are of ^ many types. They can be used in connection with any of the spraymachines except the atomizer. Most • • sprays require that the liquid be made as
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Keywords: ., bookcentury1900, bookdecade1920, booksubjectgardeni, bookyear1922
