82 Report of State Board of Horticulture. 



syringe, pumping out of and into a bucket or barrel through 

 a nozzle until completely emulsified. If the mixture is suffi- 

 ciently hot it will thicken in from five to ten minutes, and 

 will be, when cold, of the consistency of butter or of soft soap. 

 Dilute with seven to twelve parts of water to one of emulsion, 

 as occasion requires, and this will kill almost anything in the 

 form of plant lice. 



FOR CURRANT AND GOOSEBERRY WORM. 



Spray the bushes just before blooming, and again after the 

 fruit has set, with one large tablespoonful of powdered white 

 helleboiie, dissolved in two and one half gallons of water. 



HYDROCYANIC ACID GAS FOR NURSERY STOCK. 



Ingredients — C. P. cyanide of potassium, twenty-eight 

 percent, one ounce. 

 Sulphuric acid, one fluid ounce. 

 Water, two fluid ounces. 



Directions — First place the vessel in which the gas is to be 

 generated in a convenient place in the shed, and then put in 

 the cyanide of potassium ; pour the water over the cyanide, 

 and then add the sulphuric acid very slowly. Close the door 

 and submit the trees to the fumes for about forty minutes. 

 Open the door and allow the gas to escape before attempting 

 to remove the trees, as it is poisonous to inhale. 



REMEDY FOR APHIS (LICE) ON CABBAGE, CAULIFLOWER, 



TURNIPS, ETC. 



Ingredients — Quassia chips, one pound. 

 Whale-oil soap, one pound. 

 Water, one gallon. 



Directions — Boil quassia chips for five hours, then add 

 whale-oil soap, while boiling ; when dissolved, dilute to ten 

 gallons of water and spray warm. 



PEACH-ROOT BORER. 



The worst insect pest of the prune and peach trees in the 

 Willamette Valley, and probably over the entire state, is the 

 jDeach-root borer. The moth lays its eggs at the base of the 



