CALIFORNIA FRUITS: HOW TO GROW THEM 



15. Sulphur: 



a. Dry. Thoroughly dust over foliage, preferably when moist with 

 dew*. Hydrated lime about equal parts with sulphur will increase 



adhesiveness. 



b. Spray. Commercial sulphur paste, 30 pounds; water 200 gallons. 



c. Spray Commercial lime sulphur, 4 to 5 gallons; water 200 gallons. 

 For Red Spiders and Silver Mite. 



16. Lead Arsenate: 



The basic type of lead arsenate contains less arsenic per pound than 

 the acid type, and is a weaker and slower-acting poison. It is iot de- 

 composed, however, by chemicals of an alkaline nature, such as are us- 

 ually applied with it as a combination spray, nor by the damp weather of 

 the coast regions. It is considered the only safe arsenical to use on stone 

 fruits, beans or other susceptible plants. 



The lead arsenates are usually sold as a paste containing about 50 per 

 cent of water, or as a dry powder. The paste should be thinned with 

 water and worked into a smooth cream before adding to the spray tank. 

 The powder may be added directly to the tank and mixed by means of 

 the agitator. 



For codlin moth and defoliating insects, use: 

 Acid lead arsenate paste, 4 to 8 pounds; water, 100 gallons or 

 Basic lead arsenate paste, 5 to 10 pounds; water, 100 gallons. 



Dry or powdered lead arsenate contains twice as much arsenic as the 

 paste, therefore use only one-half as much as in the above formulas. 



17. Paris Green: 



Paris green, 1 1-3 to 2 pounds; water, 200 gallons. 



For Codlin Moth and most defoliating insects. 



Not to be used along coast or moist situations where injury is likely 

 to result to foliage. 



On a small scale use Paris green, 1 teaspoonful (% oz.); lime, 3 tea- 

 spoonfuls; water, 2 gallons. 



18. Zinc Arsenate: 



Zinc arsenite, 2 to 6 pounds; water, 200 gallons. 



A powerful poison for resistant insects, as the Tussock Moth, or for 

 early spraying for Canker Worm and Codlin Moth in the dry interior 

 climates. 



19. Poison Bran-Mash: 



Bran, 25 pounds; white arsenic, 1 pound; molasses (cheap blackstrap 



preferred), 2 quarts. 



Mix the arsenic and the bran dry, and add the molasses, which has 

 been diluted with enough water to mix thoroughly to make a dry mash 

 which will broadcast easily. 



19a. Citrus Bran-Mash: 



White arsenic, 1 pound; molasses (cheap blackstrap preferred), 2 

 quarts; lemons (or oranges), 6 fruits; water (about), 4 gallons; 

 bran, 25 pounds. 



Stir thoroughly the arsenic, molasses and water. Grind the lemons, 

 including the rinds, in a meat grinder, or chop fine, and add to this 

 liquid. Then slowly pour this over the bran and stir thoroughly until 

 an even mixture is secured. 



For Cut Worms and Grasshoppers, distribute a small handful about 

 the base of the vine or tree, or scatter about plants in the garden. May 

 be distributed broadcast for Grasshoppers and Army Worms. 



20. Carbon Bisulphide: 



For treatment of stored products and underground insects. 

 Usual dosage, 1 pint to 1,000 cubic feet space. 



Place liquid in saucers or shallow vessels above material to be treated. 

 Inflammable; avoid lights. 



For underground insects, a tablespoonful in holes 3 or 4 feet apart. 



