EXPERIMENT STATION BULLETINS. 



295 



phate solution (2 lbs. in 50 gals, of water), just before the growth starts 

 and the vines should be sprayed with Bordeaux mixture as soon as the 

 fruit has set. Whether other applications can be made with profit will 

 depend upon the character of the weather during July and August. If 

 wet and muggy, and the disease was present in the vineyard in previous 

 years, it will be well worth while to repeat the application of Bordeaux 

 mixture every two weeks up to the first of September, provided the 

 weather during the period is favorable for the development of the disease. 

 No application of a fungicide will be found effectual unless it is made 

 before the disease has developed and the treatment should be so thor- 



FiG. 10. Power Vineyard Outfit. 



ough that every part of the plant is covered. In sections where the 

 appearance of this disease may be expected it is advisable to so prune 

 and train the vines as to permit of free circulation of the air. This will 

 not only tend to dry off the vines and thus lessen the danger of the ap- 

 pearance of the disease, but it will facilitate the work of spraying and 

 make it possible to cover not only the foliage but the bunches of fruit 

 with the spray. 



MACHINERY FOR SPRAYING GRAPES. 



Special spraying outfits have been placed upon the market for use in 

 vinevards. These do not differ materiallv from those described for 

 spraying potatoes except th^t the spraying spars are arranged on either 

 side at the rear of the cart so as to throw the spray horizontally against 

 the vines. 



