102 ORCHARD MANAGEMENT 



when united form a fine white precipitate, which remains for a 

 long time in solution. 



Green Arsenoid and Paragreen are cheaper than Paris 

 Green. They do not settle so quickly, and are fully as destruc- 

 tive to insects. 



Much time will be saved by combining the Bordeaux mixture 

 and the insecticides, in spraying fruit trees for insect pests and 

 fungous diseases in one application. Use same quantity of 

 each as though spraying separately. 



Kerosene Emulsion. Dissolve one-half pound of hard soap 

 in one gallon boiling water, add one gallon kerosene, churn 

 with spray pump five to ten minutes. Dilute with five to 

 twenty parts of water before using. Kills by contact only. 



Hellebore. Apply dry or in water at the rate of one ounce in 

 three gallons. 



Potassium Sulfid Solution: Potassium sulfid (Liver of Sul- 

 phur) one ounce, water three to four gallons. This solution 

 will not remain unchanged. The potassium sulfid must be 

 kept in a well-stoppered bottle. 



The Lime, Sulphur, and Salt Solution is the invariable 

 remedy for the San Jose scale in California and much of the 

 Pacific coast, and wherever the weather conditions happen to be 

 favorable, duplicating, in a measure, the conditions on the Pa- 

 cific coast, this wash is effective in the East also. It has the 

 advantage of leaving a limy coating on the trees, which acts as 

 a deterrent to the young scale lice, and where it is not washed 

 by rains, retains its value as an insecticide coating for some 

 time, remaining in evidence on the trees for several months. 



f Unslaked Lime 30 pounds. 



Flour of Sulphur 20 pounds. 



Formula: \ ^. u 14 . -in-n^^A* 



Common bait 15 pounds. 



Water to make 60 gallons. 



Take ten pounds of lime and twenty pounds of sulphur and 

 boil thoroughly in twenty gallons of water for an hour and a 

 half. When the solution assumes an amber color it is an indi- 

 cation that the sulphur is all dissolved. The remainder of the 

 lime, twenty pounds, should be slaked thoroughly by pouring 

 hot water over it, adding fifteen pounds of salt while it is still 

 boiling. Stir until salt is all dissolved. The lime and salt ma- 

 terial should then be added to the lime and sulphur material, 



