The Bulletin. 29 



COMMERCIAL LIME-SULPHUR WASH. 



The commercial lime-sulphiir washes can be bought ready-made from 

 the manufacturers or their agents in larger towns. Most of them are 

 of about the same strength, and can be reduced to proper strength for 

 spraying merely by adding water. 



For winter use against San Jose Scale, use 1 gallon of commercial 

 lime-sulphur to 10 or 12 gallons of water. 



For use in spring and summer on foliage and fruit of apples, use only 

 1 1-2 gallons of commercial lime-sulphur to 50 gallons (one barrel) of 

 water. 



Arsenate of lead may be added to the lime-sulphur wash and should 

 be used at rate of about 3 pounds to the barrel. It must be remembered 

 that the lime-sulphur alone, while excellent against fungous diseases and 

 some insects, is not eilective against Codling Moth and Curculio; for 

 them the poison (arsenate of lead) must be added. Dip out a pailful 

 of the liquid and stir the arsenate in it until it is thoroughly dissolved 

 into the solution, then pour back and stir. 



HOME-MADE LIME-SULPHUR WASH. 



Many growers still prefer to make their own lime-sulphur Avash; 

 therefore, we give the formula and directions for it : 



Stone lime (unslaked) • 15 pounds. 



Sulphur (flowers) 15 pjDunds. 



Water (to make) 50 gallons. 



Heat from 4 to 6 gallons of water to boiling over fire in large iron or 

 brass kettle. Mix the sulphur with enough hot water to make a thin 

 paste and pour it into the kettle with the hot water. ISTow add the lime, 

 part at a time, and as it slakes dash in a little cold water as needed, to 

 keep it from boiling over or to keep it from becoming dry. Keep the 

 fire going and stir the mixture frequently. As the slaking ceases, keep 

 it boiling from the fire for half an hour longer, then dilute with water 

 (cold is all right) to make 50 gallons; strain through a fine wire screen 

 or cloth to remove all sediment, and spray. 



This wash, which contains 15 pounds sulphur to the barrel, is only 

 for use in winter when the trees are dormant. It is an excellent remedy 

 for San Jose Scale, but all treatments with it should be finished before 

 the buds open in spring. The later the treatment is made the better, 

 just so the buds are not open. 



BORDEAUX MIXTURE. 



(Poisoned with Arsenate of Lead.) 



Let it be plainly understood that the exact position that Bordeaux 

 Mixture should take in orchard spraying is now open to some question. 

 It is pretty well agreed that it is better not to use it at all on peaches, 



