INJURIOUS INSFXTS OF 1903. 101 



Borax — 



For cockroaches spread powdered borax on bread, sweet 

 potatoes or banana peelings, or mix with sweetened choco- 

 late and place the bait where the roaches can get it. — (Col. 

 Bui. 71, 1902.) 



See also Olive Oil, Kerosene. Or use borax freely about 

 sink, wainscoting, etc. See p. . . . F. L. W. 



Bordeaux Mixture — 



For use as a liquid spray there are several formulae 

 for this very important fungicide, but the principle of 

 making is the same in each. 



Have a stock solution of copper sulphate made by sus- 

 pending copper sulphate (blue vitriol) in a bag just below 

 the surface of a tub of water, at the rate of i pound to a 

 gallon of water. Make also a stock solution of lime; use 

 a known quantity of good lime, slake slowly and add 

 water to make a thick milk of lime ; allow to cool before 

 using, and always keep the lime covered with water. 

 When ready to spr'ay dilute the required amount of each 

 of the stock solutions to 25 gallons, and then pour the two 

 diluted solutions together. 



For dormant trees use : 

 Cu So*, 6 pounds ; 

 Lime, 6 pounds ; 

 Water, 50 gallons. 



For plants in foliage use: 

 Cu So^ 4 pounds ; 

 Lime, 6 pounds ; 

 Water, 50 gallons. 



For tender foliage, such as plum, cherry and peach, 

 use: 



Cu So*, 3 pounds ; 

 Lime, 6 pounds ; 

 Water, 50 gallons. 



— (Oregon Bui. 75, 1903.) 



