INJURIOUS AND BENEFICIAL INSECTS 45 



Arsenite of lime. Dissolve 1 pound white arsenic, 4 pounds sal 

 soda (washing soda, carbonate of soda) in 1 gallon water by boil- 

 ing in an iron vessel 15 minutes, or till the arsenic dissolves^ 

 leaving only a little muddy sediment. Add water lost in boiling, 

 use 1 pint of this solution to 40 gallons water, to which has been 

 added 2 pounds freshly slacked lime, or add 1 pint of the solu- 

 tion to 40 gallons bordeaux mixture. 



Arsenate of lead. Dissolve 11 ounces acetate of lead (sugar of 

 lead) in 4 quarts water and 4 ounces arsenate soda (50^ purity) 

 in 2 quarts of water, each lot in a wooden pail, then add solutions 

 to 100 to 150 gallons water. May be used much stronger without 

 injury to plants, and is unexcelled for use against insects which 

 feed for a considerable time^ as does the elm leaf beetle. It will 

 not burn the foliage, even if applied in very large amounts, and 

 will adhere for an indefinite period, in spite of rains. Prepare 

 as directed above, or use one of the paste forms on the market; 

 the latter are better than the dry or crystalline article. 



Poisoned baits. Dip fresh clover or other attractive leaves in 

 strongly poisoned water and place in infested localities. 1 pound 

 paris .green, 50 pounds bran, sweetened with molasses or cheap 

 sugar, mixed to a soft mash with water is very attractive to 

 grasshoppers. 20 pounds dry middlings, 1 pound paris green, 

 is good for cutworms. 



Poison carrier.^ Heat 1 pint fish oil or cheap animal oil except 

 tallow, 5 pounds pulverized resin in iron kettle with 1 gallon 

 water till resin softens; then add lye solution (1 pound concen- 

 trated lye dissolved as for soap); stir thoroughly; add 4 gallons 

 water and boil 2 hours, or till mixture will unite with cold water, 

 making a clear, amber colored liquid. Add water to make 5 gal- 

 lons. Use 1 gallon of the solution to 16 gallons water, and add 

 3 gallons milk of lime and J pound paris green. 



Contact insecticides are effectual only when applied directly to 

 soft bodied insects, and the results will be proportional to the 

 number of insects actually hit with the insecticide. 



1 Recommended by Mr Sirrlne for poisoning insects on cabbage. 



