VARIOUS INSECTICIDES 



13. Paris Green: 



Lime, 5 pounds; Paris Green, i 1-3 pounds; Water, 200 gallons. 

 For Codling Moth, and all defoliating insects. 



14. Hydrocyanic Acid Gas: 



Potassium Cyanide, i part; Sulphuric Acid, I part; Water, 3 parts. 



Place water and acid in earthenware vessel and add cyanide. To be used 

 under tents or in tight rooms or boxes. 



For fumigating buildings and the like, i ounce of cyanide to each 100 cu- 

 ft. of space for one hour or more. 



For use against scales on citrus trees. Ordinary dosage in ounces found 

 by multiplying distance around by distance over top of tented tree and pointing 

 off two places. Example : 



Distance around bottom, 40 ft. X Distance over top, 20 ft. 8.08 oz. cyanide. 



15. Carbon Bisulphide: 



For the fumigation of stored products and underground insects, and for 

 squirrels. 



Usual dosage, i pint to 1,000 cu. ft. of space. 



Place liquid in saucers or shallow vessels near top of room if convenient. 

 Inflammable: avoid lights. 



For underground insects, a tablespoonful placed in holes a few feet apart. 



