220 STATE BOARD OF AGRICULTURE. 



when shaken. This box can then be shaken over the infested plants and 

 the insects peppered or dusted with the poison. 



Hellebore is especially useful against all moist-bodied insects, such as 

 currant-worms, pear and cherry slugs, etc., for the poison sticks to their 

 bodies. 



BORDEAUX MIXTURE. 



Copper sulphate, crj^stals (Blue vitriol) ... 4 pounds 



Fresh lime (unslaked) 6 pounds 



Water 40 gallons 



Dissolve the copper sulphate in a wooden pail of water, by suspend- 

 ing it in a coarse cloth near the surface of the water. In this way it 

 will dissolve much more quickly than if allowed to settle to the bottom. 

 Use wood as the copper will deposit out on metal thus weakening the 

 solution. 



Slake the lime, with hot water if possible, in any case if only a small 

 quantity is to be used. Dilute the copper sulphate to twenty gallons in 

 one barrel, and dilute the lime to twenty gallons in another, then dip 

 alternately from each of these barrels into the spraying barrel, stirring 

 the mixture all the time. 



If large amounts are to be made, it is often expedient to make a stock 

 solution of the coi)per sulphate using one pound to a gallon of water, 

 then when ready to mix, dilute four gallons of the stock solution in 

 place of four pounds of the crystals. The required amount of lime may 

 be ascertained by slaking six pounds in a metal pail and noting just how 

 full it fills the pail. The same amount may be measured each time from 

 a stock of freshly slaked lime and diluted to twenty gallons before mix- 

 ing. Larger and smaller amounts may be made in the same proportion. 



TREATMENT FOR INSECTS IN STORED GRAINS AND SEEDS. 



The treatment for dried grains containing insects is comparatively 

 easy, providing the grain or seeds is in tight bins or barrels, capable 

 of being tightly and quickly closed. Old carpets, blankets, etc., often 

 will be found useful in helping to make the bins tight. 



Measure the inside of the bin, counting in the air space above the 

 grain, if the bin is not entirely full, and place some old pans or plates 

 on top of the grain. Then for every cubic foot of space in the bin, put 

 a dram of liquid carbon bisulphide in the pans and quickly close the 

 bin. Thus a pound of the liquid will suffice for about one hundred 

 cubic feet of sjiace or a little more, or for about one hundred bushels of 

 grain. 



If the seed or grain is more than two or three feet deep in the bin, 

 (he liquid should be poured into it at some depth in order to insure its 

 spreading evenly and filling all the s[)ace treated. This is easily done 

 with a piece of gas-pipe fitted with a wooden stick for its entire length. 

 The pipe with the stick in place is thrust down half way to the bottom 

 of the bin, the stick withdrawn and the liquid poured down through 

 the pipe. The stick merely prevents the pipe from becoming filled when 



