LOUISIANACIRCULAR No. 4. 



spraying material invariably gets all over the operator am] 



through his clothing. The use of such pumps under any circum- 

 stances for spraying any material whatsoever is only a make-shift 

 that can hardly be commended. 



The use of knapsack pumps with the lime-sulphur is nor 

 practicable. 



For use with the lime-sulphur wash a substantial, well-made 

 pump of brass should be used and it should in all eases be 

 equipped with a long line of hose and an extension pipe so 

 that the operator can conveniently reach all parts of the trees or 

 pi ants to be sprayed. 



In private grounds and in small orchards a bucket pump, 

 costing in the neighborhood of $7.00 to $9.00 is amply sufficient 

 for the work when properly provided with hose and pipes. As 

 sent out by the factories, these bucket pumps are equipped with a 

 three-foot length of hose to which the nozzle is attached. To 

 spray tall orchard trees with such an outfit is impossible. How- 

 ever, the short length of hose can be removed and a hose ten to 

 fifteen feet in length can be substituted. To the distal end of the 

 hose an extension pipe (w'hich need be nothing more elaborate 

 than a, length of ordinary iron gas pipe upon which threads are 

 cut for screwing on the nozzle) should be attached and on the end 

 of this the nozzle should be placed. Almost any factory or dealer 

 in spraying machinery will furnish bucket pumps equipped in 

 this manner if requested to do so. While such an outfit can be 

 used by one man working alone, better and more satisfactory 

 spraying can be accomplished by two. In the latter case one 

 man can pump while the other directs his entire attention to the 

 use of the nozzle, the long lead of hose and extension pipe 

 (which latter should be about six feet in length), permitting him 

 t> move about with perfect freedom and reach all parts of the 

 tree. An outfit of this kind is shown in Figure 10. 



In orchards of over one or two hundred trees the spraying 

 can be carried on much more rapidly by the use of a barrel pump, 

 costing from $12.00 to $20.00. While the bucket pump outfit can 

 of course be used for spraying any number of trees, still the use 

 of a barrel pump equipped with two leads of hose ami having a 

 capacity of about 50 gallons at each filling affects such a saving 

 of time that its use is economical in the end. Like the bucket 



