72 Report of State Board of Horticulture. 



FOR TWIG BORER AND BUD MOTH. 



Spray in the fall, as soon as all the leaves have dropped, 

 with sulphur, lime, and salt solution, followed up in the spring, 

 as soon as the buds begin to swell, with the following wash : 

 Sulphate of copper, three pounds ; lime, four pounds ; paris 

 green, four ounces ; w^ater, forty-five gallons ; and again with 

 the same wash the latter part of May. 



FOR CLOVER MITE. . 



Spray with sulphur, lime, and salt solution in the fall as 

 soon as all the leaves have dropped. 



RESIN WASH. 

 By Professor Koebele. 



This is a summer spray for all scale insects, woolly and 

 green aphis. 



HOW PREPARED. 



Ingredients — Resin, four pounds. 



Sal soda, three pounds. 



Directions — Place resin and sal soda in kettle with three 

 pints of cold water. Use soft or rain water always. Boil or 

 simmer slowly until thoroughly disolved, when it will look 

 black. The sal soda will adhere to the side of the kettle, 

 and must be scraped down. When it looks dissolved, if there 

 are pieces of resin in the bottom of the kettle it needs more 

 boiling. When sufficiently boiled, add enough hot water to 

 make fifty gallons. After adding the w^ater it will become 

 thick, but after boiling again it becomes thin. The above is 

 ready for immediate use, and should be applied cold or only 

 lukewarm. If desired for future use, boil the above amount 

 of ingredients as directed, and add water to make five gal- 

 lons ; boil until thick. This w^ll stand any length of time, 

 and is always ready for use. When required, use one part or 

 gallon of compound with the following number of gallons of 

 boiling water, and stir thoroughly w^hen applying : For hop 

 louse, one gallon of compound to nine gallons of water ; for 

 woolly aphis, one gallon of comjDound to seven gallons of 

 water ; for San Jose scale, one gallon of compound to six 

 gallons of water. The foregoing spray is not injurious to the 

 tree, for after three or four days of sunshine it dissolves and 

 leaves the pores of the bark open. 



