1 86 Lime-sulphur Wash for Use on Foliage. Uune, 



Orange Pippin, Bismarck, Worcester Pearmain, Duchess' 

 Favourite, Belle de Pontoise, and Golden Spire. No 

 " scorching" of the foliage resulted. In the United 

 States a lime-sulphur wash is being officially recom- 

 mended by the Department of Agriculture for use against 

 attacks of "scab," (or "black spot") on those varieties of 

 apples (such as Ben Davis, Jonathan, Hubbardston) which 

 are liable to be injured on their foliage or fruit by the use 

 of Bordeaux mixture. As I have recently pointed out (see 

 this Journal for May last), certain varieties of apples grown 

 in this country are likewise liable to be injuriously affected 

 by Bordeaux mixture — the foliage becoming "scorched," or 

 yellowing and falling off, or the fruit becoming "russeted " or 

 "rusty." In the case of these varieties, when they are 

 threatened with attacks of "scab," the English apple-grower 

 should use, on an experimental scale, the lime-sulphur wash 

 here described. 



Preparation of the Wash. — The lime-sulphur wash used in 

 the above experiments may be made first in a very concen- 

 trated form by boiling together the following quantities of 

 lime and sulphur : — 



This formula, as well as the method of making and diluting 

 the wash which is described below, is that recommended in 

 Bulletin No. 92 of the Pennsylvania State College Agricul- 

 tural Experiment Station. 



Some form of heating apparatus is necessary, such as a 

 copper. Iron or zinc coppers are suitable, but copper ones 

 must not be used. 



Place 10 gallons of water in the copper, and start the fire. 

 Add the 50 lb. of quicklime. When the slaking is well 

 started, add the 100 lb. of sulphur gradually, and mix until 

 a thin, even paste is formed, taking care to break up all the 

 lumps of sulphur as far as possible. If too thick, a little more 

 water can be added. When thoroughly mixed, add water 

 up to the 50-gallon mark (using a measuring stick). Boil 

 for one hour, adding water when necessary to keep it at the 

 same level. 



Quicklime (in lumps) 

 Flowers of Sulphur 

 Water 



5o lb. 



100 lb. 

 50 gallons. 



