[Fruit culture] . Fig. 14 should be made of copper. 30 ESSENTIALS OF FRUIT CULTURE §2 HAND SPRAYS 39. Bucket Spray Pump.—^For a few small trees orbushes, a bucket spray pump, a type of which is shown inFig. 14, may be used. This pump has a removable nozzle aand is made entirely of brass and has a small air chamber bthat helps to equalize the pressure and cause the spray to flowmore steadily. The foot rest c helps to hold the pimip whileit is being operated. A part of the pump is shown removed,. Fig. 15 exposing the lower valve d and the valve e in the of the valves are made of bra
[Fruit culture] . Fig. 14 should be made of copper. 30 ESSENTIALS OF FRUIT CULTURE §2 HAND SPRAYS 39. Bucket Spray Pump.—^For a few small trees orbushes, a bucket spray pump, a type of which is shown inFig. 14, may be used. This pump has a removable nozzle aand is made entirely of brass and has a small air chamber bthat helps to equalize the pressure and cause the spray to flowmore steadily. The foot rest c helps to hold the pimip whileit is being operated. A part of the pump is shown removed,. Fig. 15 exposing the lower valve d and the valve e in the of the valves are made of brass. A strainer shown at /is placed in the bottom of the pump to prevent the entranceof particles that would injure the pump or clog the nozzle. 40. Knapsack Sprayer.—The outfit illustrated in Fig. 15consisting of a brass force pimip surrounded by a copper ora galvanized-iron tank, is known as a knapsack sprayer,and may be used for small trees or bushes. The tank holds §2 ESSENTIALS OF FRUIT CULTURE 31 about 5 gallons and is made to fasten to the back by means ofthe straps c. The material of which the tank should be madedepends on the spray solution to be used. If lime-sulphuris to be used, the tank should be of galvanized iron, as thesolution will very quickly destroy copper. If Bordeaux mixtureis to be used, the tank should be of copper, as the Bordeauxmixture has a somewhat injurious effect on iron. The tank isshown in (a) with a portionbroken away to expose thepump to view. The pt
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Keywords: ., bookcentury1900, bookdecad, booksubjectfruitculture, bookyear1912
