70 Report of State Board of Horticulture. 



Boil together for 45 minutes and keep in a tight vessel. Add 

 one quart of this to a barrel (50 gallons) of water for use. 



This insecticide has been recommended by a nimiber of experi- 

 ment stations. 



INSECTS that suck THE JUICES OP FRUITS OR TREES. 

 SPRAY NO. 4 — SULPHUR; LIME, AND SALT. 



Oregon Formula. 



50 pounds unslacked lime. 

 50 pounds flower of sulphur. 

 25 pounds common salt.* 



Slack the lime in enough water to do it thoroughly ; add the sul- 

 phur and boil for an hour at least, adding water if necessary. Then 

 add the salt and boil 15 minutes more. Add water to malce 150 gal- 

 lons and spray hot through a coarse nozzle. 



SPRxVY NO. 5 — SULPHUR, LIME, AND SALT. 



Marlatt's Formula {from. Smith). 



30 pounds unslacked lime. 

 30 pounds sulphur. 

 15 pounds salt. 

 60 gallons water. 



Boil with steam for four hours and apply hot. 



SPRAY NO. 6 — WHALE-OIL SOAP, OR QUASSIA CHIPS. 



Boil one pound of soap dissolved in four gallons of water ; or boil 

 for two hours one pound of quassia chips ; add water to extract to 

 make four gallons. 



FUNGICIDES. 



SPRAY NO. 7 — BORDEAUX MIXTURE. 



6 pounds copper sulphate (blue vitrol). 

 6 pounds lime (unslacked). 

 50 gallons water. 



Dissolve the copper in hot or cold water, using a wooden or 

 earthen vessel. Slack the lime in a tub, adding the water cau- 



* Exhaustive experiments at Illinois station prove that spray No. 4 will be more 

 effective by substituting for the salt one and one-half pounds sulphate of copper for 

 each fifty gallons of water. 



