Show horticultural PO oin ints s ko SPRAY OUTFIT FOR ORCHARD compressed air devices are used but are not as popular as gasoline engines prepared by the united stacee department of 0 agri agriculture cu iture spraying out outfits fits fa for r commercial orchards and vineyards are generally operated operated by gasoline engines although alt hougil traction sprayers sp and compressed air outfits are also in use in the traction type of sprayer the pump Is geared to or connected with the wheels and the pressure Is generated while the spray rig Is moving these sp are used in vineyards but more especially for low growing crops the difficulty of having sufficient pump capacity and pressure Is a serious objection to the traction type of 0 sprayer prayer for orchard and vineyard use compressed air sp have been used more or less in orchard spraying but are much less popular than n gaso line power outfits compressed air are mounted low and owin owing to their small size and light weight may sometimes be used to advantage on steep hillsides hill sides here inhere the ordinary power sprayers sp are impracticable the compressed air outfit consists of two tanks one for the air and the other for the spray material As the air Is released into the spray tank the spray spra material Is forced out under a constantly decreasing pressure the gar ir tank is charged at a central pumping station by means of a compressed air pump spray pumps operated by gasoline engines are by tar far the most useful type of sprayer spray erand and tire ire made in various sizes and styles to suit almost any requirement the smallest power sp tire are nothing more than an ordinary barrel pump equipped with a small engine of 0 1 to 11 1 4 horse power these bin small all mechanical outfits are higher in ili price than the hand pump but are usually worth the additional first cost they may be operated at a comparatively small cost and will give a steadier spray and at a higher pressure than will the pumps operated by hand with the small power outfit one lead of hose Is generally used but two leads may be employed it if the pump has sufficient capacity large power sp are made with pumps of from 2 to 4 cylinders having a capacity of 5 to 15 or more gallons per minute under a pressure of to pounds these sprayers sp are operated by gasoline engines of from 2 to 12 horse power for the 4 cylinder pumps of large capacity autotype auto type 4 cylinder engines of 10 to 12 horse power are sometimes used the spro spraying ying outfits used by the majority of commercial con N ii 14 I 1 1 i compressed air sprayer not much used except in orchards planted on steep rough hillides Hil sides alst of a 2 to P cylinder pump with a capacity of 8 6 to 9 gallons of spray material per minute rind and able to furnish a pressure of to pounds these outfits are equipped with gasoline engines of from 2 to 4 horsepower and usually are provided with a gallon tank and good agitation the makes of spray machines now on the market vary a good deal in durability and effle efficiency lency the fru fruit t grower before selecting an outfit should consider carefully the sever several I 1 designs and choose an outfit that wl will I 1 best meet his requirements |