. Department bulletin. 172 I'KACH LEAF CURL: TTS NATURE AND TREATMENT. For orcliurds of nuHliuin to Lirgc size it is hotter to obtain more powerful puin])s—those t'ap{il)leof throwing"four strong sprays. The pumps shown in tigs. 8, iK and 10 are admirably suited for this class of work. Pumps of the type shown in tig. 8 are used in the 1,600- acre Rio Bonito orchard. In this orchard one man pumps for four men spraying (Pis. XXVII and XXVIII). In man}^ portions of California the pneumatic pump, shown in fig. 10, is a favorite-. It has been used extensively in the spraying of orange groves w
. Department bulletin. 172 I'KACH LEAF CURL: TTS NATURE AND TREATMENT. For orcliurds of nuHliuin to Lirgc size it is hotter to obtain more powerful puin])s—those t'ap{il)leof throwing"four strong sprays. The pumps shown in tigs. 8, iK and 10 are admirably suited for this class of work. Pumps of the type shown in tig. 8 are used in the 1,600- acre Rio Bonito orchard. In this orchard one man pumps for four men spraying (Pis. XXVII and XXVIII). In man}^ portions of California the pneumatic pump, shown in fig. 10, is a favorite-. It has been used extensively in the spraying of orange groves where the trees are large and where high pressure is necessary to throw the spray to their tops. The pumps shown in tigs. 8 and 9 have perpen-. Fio. 7.—Spray pump for use on hiirrcl or tank. di(;uhu' levers, thus avoiding the ])ending or stooping motion of the operator. Th(; l(U'(;rs of each of the three styles shown are long, and both th(; str(*ngth and capacity of the pump is sufiicient. The style of pumps, })otli for small and hirge orchards, to Avhich attention is here called, will Im" i'oniid ligured and listed in catalogues usually to be found in tlui hands of leading hardware dealers. AVithin the past few years leading orchardists and otliers have t(!sted, with varying success, the ap})licati()n of ditl'erent motive powers to the operation of spray pum])s. Steam and gasoline engines have received most attention toi- this |)ui|)ose. Many of the power. 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 United States. Dept. of Agriculture; Patterson, Flora. Mushrooms . .; Pierce, Newton Barris. Peach leaf curl . .. Washington, Govt. Print. Off.
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Keywords: ., bookcentury1900, bookdecade1900, bookpublisherwashingtongovtprin
