Insecticides. 



1 1 



Kerosene and water emulsion.— Goff: atomizes kerosene and water 

 as follows : To the Woodason atomizing bellows a small cup 

 is attached directly in front of the fount for holding the 

 liquid to be atomized. From this cup a very slender copper 

 tube is passed through the side of the fount where it 

 enteres the larger tube that conducts the liquid from the 

 fount to the mouth of the bellows. It then curves upward, 

 passing through the center of this tube as far as the mouth 

 of the bellows, where both come to an end at the same point. 

 Kerosene is then placed in the added cup and water in the 

 fount. On working the bellows the liquids are atomized 

 together. The proportion of kerosene emitted will depend 

 upon the relative diameters of the two tubes, but it may also 

 be regulated by the relative depths of the liquid in their 

 respective founts. A better way would be to use but a single 

 fount and to divide this into two parts, one for kerosene and 

 the other for water. This would permit the mouth of the 

 bellows to be brought nearer to the plant to be atomized. 



Lime spray. — Slake y 2 peck or a peck of lime in a barrel of 

 water, straining the lime as it enters the barrel to prevent 

 its clogging the pump. Apply in a spray until the tree 

 appears as if whitewashed. For rose-chafer. 



London purple. — See Arsenites. 



Lye wash.— 1 pound concentrated lye. or potash 1% pounds, to 

 3 gallons water. On an average, 1 bushel of good wood- 

 ashes contains about 4 pounds of potash. For scale insects. 



Common home-made lye is often diluted with water and 

 applied to apple branches with a brush as a remedy for the 

 bark-louse. It is also recommended as a remedy for the cab- 

 bage-worcn. being crinkled on the cabbages with a water- 

 ing pot. If concentrated lye is used, a pound should be 

 diluted with a barrel of water. 



Lye and sulphur wash. — Concentrated lye. 1 pound, or potash, 

 \% pounds; sulphur. 1J£ pounds; water. 3 gallons. For 

 scale insects. 



Lye and whale-oil soap wash.— (a.) Dissolve 1 pound of concen- 

 trated lye in one gallon of water ; add to this \% pounds of 

 sulphur and boil until sulphur is dissolved, (h.) Dissolve 

 14 pounds of the best whale-oil soap in 54 gallons of water ; 

 add solution a to & and boil for a short time. For scale; 



