EXPERIMENT STATION BULLETINS. 



289 



to use a barrel pump which can be placed either on a stone boat or in 

 a wagon or cart and drawn through the orchard by a horse. These 

 pumps should be easy working and so constructed as to be durable and 

 not likely to get out of order. Where to be used also for Bordeaux mix- 

 ture the working parts at least should all be of brass but if to be used 

 for sulphur and lime, some of the combination pumps will be even more 

 durable and considerably cheaper. These pumps should have not only 

 spraying rods from eight to twelve feet in length, according to the size 

 of the trees, but the connecting lines of hose should be of a length of 



Fig. 5. Wallace Traction Spraying outfit. 



fifteen to twenty -five feet so that those handling the spraying rods can 

 stand some distance away from each other and from the pump, thus 

 lessening the amount of spray that will reach the other workmen and 

 the team. Care should also be taken that there is no leak in the hose 

 and that all joints are tight. To prevent the liquid running down the 

 spray rod to the hands a gasket of rubber, or leather, can be placed 

 upon the spray rods which will cause it to run off to the ground. With 

 a little care in spraying, the amount that will get upon the persons of 

 the workmen can be reduced to a minimum. It will also be well, how- 

 ever, for them to wear rain coats and some kind of gloves or mittens 

 that will keep the spray mixture from the hands. In some sections 

 heavy canvas mittens, or gloves, that have been soaked in oil are used. 

 Blankets for the horses will also be necessarv. 

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