APPLE SPRAYING EXPERIMENTS IN I914. lOl 



of glue to the gallon. Place the sulphur in a pail or other con- 

 venient receptacle, and pour on half of glue solution called for 

 above, i. e., one gallon of glue solution to seven or eight pounds 

 of sulphur. Work the sulphur into the glue solution until it is 

 thoroughly wetted and forms a smooth, creamy mass by stirring 

 with a stick or kneading with the hands, breaking up all the 

 lumps as thoroughly as practical." 



For straining he recommended the construction of a special 

 strainer of wire cloth, preferably of brass, 10 or 12 meshes to 

 the inch, supported by a piece of one-fourth to one-half inch 

 mesh galvanized wire cloth, and backed by a piece of cheese 

 cloth attached to a removable wooden frame placed in the box. 

 According to directions the remainder of the glue solution was 

 to be used to wash the sulphur paste through the strainer, this 

 process to be facilitated by brushing with a cheap paint brush. 



Since the main object to be attained in this straining was 

 simply to thoroughly break up all small masses of sulphur stick- 

 ing together, as well as to remove foreign bodies which might 

 clog the spray nozzles, a more simple method of straining was 

 tried with fair success. In this the ordinary strainer used for 

 straining other spray materials was employed. This strainer is 

 a rectangular box, open at the top. One of two opposite sides 

 of this box is several inches shorter than the other, so that the 

 bottom of the strainer, which is covered with strong brass wire 

 cloth, about 40 meshes to the inch, forms an acute angle with 

 the sides. By rubbing with the hands or a piece of shingle most 

 of the sulphur was worked through this strainer with the re- 

 maining glue solution, and what was left was readily washed 

 through with ordinary water from a hose. 



As a rule this sulphur and glue paste after straining and 

 diluting was immediately placed in the spray tank and applied. 

 If allowed to stand for a time after straining the sulphur would 

 settle and form a rather stifif paste or semi-solid mass at the 

 bottom of the container, but no difficulty was experienced in 

 again bringing it into suspension in condition to be diluted for 

 final application. 



TIME AND MANNER OF APPLICATION. 



Except as mentioned below the spray applications to the 

 different plots were all made on the same day. Especial care 



