. Insect pests of farm, garden and orchard . con-venient to fill, though the newermodels are much improved, isnot readily repaired, has noagitator, and recjuires frequentpumping. On the other hand,they are easily carried, do not leak, and leave both hands free, ^f ^ of the best types of knapsack sprayers. Note foot-so that one might be used for rest, agitator, handle, and wide spraying a small tree from a step- ^^P- (Deming Co.)ladder. These compressed-air sprayers cost from $5 to $8. Barrel Pumps.—The most serviceablespray pump for theaverage farm is thebarrel pump. With agood barrel pu
. Insect pests of farm, garden and orchard . con-venient to fill, though the newermodels are much improved, isnot readily repaired, has noagitator, and recjuires frequentpumping. On the other hand,they are easily carried, do not leak, and leave both hands free, ^f ^ of the best types of knapsack sprayers. Note foot-so that one might be used for rest, agitator, handle, and wide spraying a small tree from a step- ^^P- (Deming Co.)ladder. These compressed-air sprayers cost from $5 to $8. Barrel Pumps.—The most serviceablespray pump for theaverage farm is thebarrel pump. With agood barrel pump 100to 150 full-grownapple trees may besprayed in a day, sothat it will be foundsufficient for an or-chard of 500 trees orless. By using a row-spraying attachment,a few acres of pota-. FiG. 31.—The knapsack sprayer in use.(Spramotor Co.) 64 INSECT PESTS OF FARM, GARDEN AND ORCHARD toes or other row crops may be sprayed with a Inirrel pump muchmore quickly than by hand. In buying a row attachment, be surethat it is adjustable for rows of different widths. A good barrelpump costs from $15 to $25. Most of the pumps sold at $10or less are too light to do effective work or are not well pump companies advertise in the agricultural papers,and after considering the following points one may select asuitalile pump from their catalogs:
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Keywords: ., bookcentury1900, bookdecade1910, bookpublishernewyo, bookyear1915
