In making this mixture the best stone lime procurable should be placed in 

 a barrel and slaked, using precautions not to drown the lime in slaking it. 

 W. M. Scott recommends that enough water be applied to nearly cover the 

 lime when slaking. As soon as the lime has commenced to slake and some 

 heat has generated, apply the sulfur through a fine sieve to break up the 

 lumps. The mixture should be stirred and more water added gradually, 

 bringing it to a thin paste. As soon as the lime is well slaked, more water 

 should be added to cool the mixture. 



Since there is much difference in lime as regards the development of heat, 

 it is difficult to specify any particular time to add the water for the purpose 

 of cooling, but it should be done before the sulfur goes into solution and 

 forms sulfides, which are injurious to peach foliage. Under ordinary condi- 

 tions, the mixture should not be allowed to remain hot over ten or fifteen 

 minutes after slaking. With the intense heat developed from slaking and 

 constant stirring a uniform mixture of fairly finely divided sulfur and lime 

 is obtained with only a small trace of sulfides in solution. It should be 

 strained before using. 



Mr. Scott has used this successfully for peach brown rot and scab. In 

 this formula he also mixed two pounds of arsenate of lead, which proved 

 effective in helping to control the plum-weevil and other insect pests. Mr. 

 Scott believes that the arsenate of lead is less likely to burn tender foliage 

 when in combination with lime and sulfur than when used alone. 



Concentrated Lime and Sulfur Solutions. 



There are a number of these solutions on the market which are apparently 

 similar in composition. Their specific gravity varies from 30^10 34° Baumd, 

 and in using them it is necessary to dilute according to the strength of the 

 solution and the nature of the foliage to which they are to be applied. The 

 directions furnished by manufacturers for the dilution of their own product 

 for different purposes can usually be relied upon. 



Arsenate of lead at the rate of 3 pounds of paste or li pounds of pow- 

 der to 50 gallons of the mixture may be combined with these commer- 

 cial lime and sulfur solutions as a summer spray. Extreme care should be 

 taken to mix the two substances thoroughly as injuries have been reported 

 from this combination of arsenate of lead with the commercial solutions, 

 especially in the eastern part of the state. To do away entirely with the 

 risk of injury to the foliage and fruit it would be safer to combine the arse- 

 nate of lead with the self-boiled lime and sulfur solutions as outHned in the 

 previous section. 



Home Made Lime and Sulfur Solutions. 



Very few orchardists find it profitable to prepare the home-made lime and 

 sulfur solutions now that the commercial solutions are so much more conven- 

 ient to use and are virtually as efficient. Information concerning the prepa- 

 ration of the home-made solutions may be found in bulletins Nos. 329 and 

 339, of the New York (Geneva) Agricultural Experiment Station, which 

 mav be obtained from the director of that station. 



