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Bordeaux Mixture. [Jan., 1910 



sack sprayers the cost of spraying one acre of trees, about 

 10 or 12 years' old, and planted 10 feet apart, is approximately 

 55. for the material, and 10s. to 12s. for the labour. While! 

 knapsack sprayers, when kept in good order, and when on 

 the backs of men who pump sufficiently hard to maintain the 

 necessary pressure, are satisfactory, there is always the danger \ 

 of these two requirements not being fulfilled, when an inferior 

 spray is produced, and the full advantages of the use of 

 Bordeaux mixture will not be obtained. For spraying young 

 trees in newly-planted plantations a knapsack sprayer is 

 excellent. 



A very useful type of machine is shown in Fig. 14. The 

 pump is of Canadian make, and costs £3 15s.; it can be 

 fitted to a 30-gallon barrel provided with a "stretcher" or 

 hand-barrow arrangement — as shown in the illustration — at 

 an additional cost of £1 2s. 6d. The two iron lances are 

 fitted with a cluster of nozzles. This "Spramotor" nozzle 

 gives an excellent "misty " spray; it is best used in a cluster 

 of three (see Fig. 13). This machine can be carried by two 

 men in closely-planted plantations without damaging the trees 

 or bushes. It is used to a considerable extent in the Evesham 

 and Pershore districts, and has lately been introduced into 

 Kent. The pump is strong, and is in extensive use in 

 Canada. One of these pumps has been used for the past two 

 seasons by a grower in Kent for spraying both fruit trees 

 and hops. In this case the machine when used with a horse 

 in the hop-garden is adapted by attaching temporarily an 

 axle with two wheels to the front legs, and a whippletree to 

 the front handles of the "stretchers." The cost of this spray- 

 ing outfit (exclusive of wheels and whippletree), as shown in 

 Fig. 2, is £8 10s. 



A very convenient type of machine, with either wooden 

 or galvanized iron tank, of from 20 to 40 gallons' capacity, 

 is shown in Fig. 15. Machines of this type, very strongly 

 made, are now constructed by several firms in Kent. The 

 machine shown in the illustration contains 30 gallons, and 

 is built very narrow (measuring only 22 in. wide over all) for 

 use in closely-planted plantations. An air-chamber is sup- 

 plied of sufficient size to secure the maintenance of the neces- 

 sary pressure between the strokes of the pump. With a good 



