Sulphur , 131 



blue. Some persons prefer to add about a pound of the 

 soda and then neutralize with lime water, as there is not 

 so much danger of getting it too strongly alkaline and 

 burning the fruit. 



This spraying material is not so easily made up as bor- 

 deaux mixture, but it has the added advantage of not soil- 

 ing maturing fruits and ornamental plants. When care- 

 fully made good results can be expected, but on account of 

 its scalding the plants unless carefully neutralized, it is 

 not generally recommended. 



Ammoniacal Copper Carbonate 



Copper carbonate, 5 ounces. 

 Ammonia, 26 degrees Baume, 3 pints. 

 Water, 50 gallons. 



Dilute the ammonia with five or six quarts of water 

 and make a paste of the copper carbonate in water. Pour 

 the ammonia over the paste, using just enough to dissolve 

 it Do not apply more than is necessary. If any copper 

 carbonate remains undissolved after standing in the am- 

 monia for some few minutes, add a little more ammonia. 

 Then dilute to fifty gallons. 



This makes a deep blue solution that is not as effective 

 a fungicide as either bordeaux mixture or the soda bor- 

 deaux, but it has the advantage of containing no sediment 

 and can be used on ripening fruits and ornamental plants. 

 It deteriorates after standing exposed to the air for some 

 time. 



Potassium Sulphide 



Potassim sulphide, 3 ounces. 

 Water, 10 gallons. 



This material should be dissolved and it is ready for use. 

 Chiefly used for the control of powdery mildew on goose- 

 berries. 



Sulphur 



Dry sulphur is used in a small way for the prevention 

 of some of the mildews which attack plants in the field, 



