LIME-SULFUR 



257 



centrate to make the stated amount. Do not measm-e out the 

 stated amount of water and add the concentrated solution to it. 



(3) Commercial concentrated hme-sulfur. — As manufactured 

 and placed on the market is a clear amber liquid, and should test 

 32° to 35° Beaume. It costs about 20 cents per gallon retail, 

 and comes ready to pour into the spray tank. For ap{)le and 

 pear diseases. Arsenate of lead can be used with this .solution, and 

 increases its fungicidal value. 



(4) Self-boiled lime-sulfur. This is a mechanical mixture of the 

 two substances, and is really not boiled, the heat being supplied by 

 the slaking lime. In a small barrel or keg place 8 pounds of 

 good quicklime. Add water from time to time in just sufficient 

 amounts to prevent burning. As soon as the lime begins to slake 

 well, add slowly (preferably through a sieve) 8 pounds of 

 sulfur flour. Stir constantly, and add water as needed. As soon 

 as all bubbling has ceased, check further action by adding a 

 quantity of cold water, or pour into a barrel or tank and make 

 up to 50 gallons. Keep well agitated. Very effective against 

 peach scab and brown rot. Several other formulas have been 

 used : 10-10-50 and 5-5-50. Arsenate of lead can be used with 

 this mixture. 



By using boiUng water and allowing the hot mixture to stand for 

 half an hour, a stronger spray mixture of the above can be secured. 

 It cannot be used safely on peaches, but has been used success- 

 fully on grapes for surface mildew. The addition of sulfate of 



