94 



SPRAYING CROPS 



same time are covered with brown patches of mycelium, 

 which may readily be peeled off from the smooth skin 

 of the fruit/' 



Remedies — Spray with a solution of potassium 

 sulphide (liver of sulphur) at the rate of one-half 

 ounce to i gallon water. Begin as soon as the leaves 

 commence unfolding, and repeat the application at 

 intervals of eighteen to twenty days. The sulphide 

 dissolves more readily in hot than in cold water. 

 This treatment has proven entirely efficacious for a 

 number of years at the New York experiment station. 

 Early in the season the Bordeaux mixture may be 

 used instead of the sulphide if more convenient, and 

 it is desirable to spray with Bordeaux mixture after 

 the fruit is gathered, to prevent the various spot- 

 diseases, that often cause the foliage to drop off late 

 in summer. 



General Treatment — One of the most successful 

 currant growers in New England gives his bushes 

 three sprayings each season, namely : first, with copper 

 sulphate solution in early spring before buds open ; 

 second, with Paris green as soon as leaves come out ; 

 third, with Bordeaux mixture and Paris green after 

 fruit is picked. 



