84 THE COXXECTICUT POMOLOGICAL SOCIETY. 



thorough spraying-, (2) that salt is useless both in making the 

 mixture effective, and in making it stick upon the trees, (3) 

 by the use of liver of sulphur (potassium sulphide) we can 

 make an effective mixture without the trouble and expense of 

 boiling, (4) lime and water (whitewash) is ineffective in kill- 

 ing the scale and does not stick well upon the trees, (5) strong 

 Bordeaux mixture is not effective in killing the scales, though 

 it adheres nicely to the trees. 



Other experiments show: (i) that we can use a smaller 

 quantity of lime, (2) that less boiling may suffice. 



From the points gained in conducting these experiments, then, 

 we shall make up a mixture without salt, containing less lime, 

 and boiled for a shorter time than we have supposed necessary. 

 We can begin to practice economy in the preparation of the 

 mixture by adding the sulphur before slaking the lime, and thus 

 utilizing the heat of the lime in slaking to help dissolve the 

 sulphur. 



Recent Experiments in Fall Spraying zi'ith Lime and Sulphur. 



Following the indications of last season's experiments which 



I have just mentioned, we can suggest the following formula: 



Lime 14 pounds. 



Sulphur 14 pounds. 



Water 40 gallons. 



A mixture prepared after this formula was used at Bridgeport 

 on plum, pear and peach trees on December loth. The sulphur 

 was made into the form of a paste and put with the lime before 

 slaking the latter. These materials were placed in the barrel, 

 and the lime slaked carefully. By this method we can utilize 

 the heat of the lime in slaking to help dissolve the sulphur, and 

 a slight amount is dissolved by the slaking of the lime. Water 

 was added to make the barrel about one-third part full. Steam 

 from a Bigelow boiler, used for sawing wood in a wood yard, 

 was then conducted into the barrel through a rubber hose con- 

 nected with the safety valve. The boiler could then be used 

 for sawing wood, while we were cooking the mixture, and 

 almost no pipe connections were required. 



After the mixture began to boil, we cooked it for thirty 

 minutes, then strained it into the spray barrel and filled the 

 barrel with cold water, and applied to the trees. 



