218 STATE BOARD OF AGRICULTURE. 



The soap is to be dissolved in the water and while it is still boiling 

 hot the acid is added and the whole churned by forcing the stream 

 from the nozzle into the kettle, just as is done in making kerosene-emul- 

 sion. Dilute with thirty times its bulk of water and apply. If any 

 injury results from the use of this emulsion, dilute it still more. Use 

 the crude carbolic-acid in making the emulsion as it is very much 

 cheaper and just as good. 



STOMACH POISONS, FOR INSECTS THAT CHEW. 



PARIS-GREEN AND LIMB. 



Always use lime with paris-green, it makes the poison stick better, 

 beside greatly reducing the danger of burning the foliage. 



For spraying from a barrel, the writer has found the following method 

 very useful, — Place from one-quarter to one-half pound of good quick 

 lime or unslaked lime, in each of three or four tin pails which will hold 

 about three quarts or less. Old cans or crocks will answer just as well. 

 Add enough hot water to slake it into a thin cream or paste. Now add 

 to each lot, one-quarter pound of paris-green, previously weighed out, 

 and placed in paper bags, stir while the lime is hot and allow to stand 

 for some time. Now measure out about forty-four gallons of water in 

 your spraying barrel and make a mark that will show you how high it 

 comes in the barrel, add the contents of one tin pail (viz., one-quarter 

 pound of paris-green and one-half pound of quick-lime slaked) into the 

 forty-four gallons of water in the barrel. Stir well and spray. The pails 

 or crocks can be used one at a time and refilled occasionally so that the 

 stock is always on hand ready for use. Keep the pails or crocks for this 

 purpose alone. 



KEDZIE MIXTURE (ARSENICAL). 



This mixture, originated by the late Dr. R. C. Kedzie, of this station, 

 is cheap, but it has the disadvantage of lacking a warning color. It is 

 a good substitute for paris-green, but must be made with care, and stored 

 in well labeled jugs. 



Dr. Kedzie in giving directions for its preparation says: "Dissolve 

 the arsenic by boiling with carbonate of soda, and thus insure complete 

 solution; which solution can be kept ready to make a spraying solution 

 whenever needed. To make the material for eight hundred gallons of 

 spraying mixture, boil two pounds of white arsenic with eight pounds 

 of sal-soda (crystals of carbonate of soda — 'washing soda' — found in 

 every grocery and drug-shop) in two gallons of water. Boil these ma- 

 terials in any iron pot not used for other purposes. Boil for fifteen 

 minutes or until the arsenic dissolves, leaving only a small muddy sedi- 

 ment. Put this solution into a two gallon jug and label Toison,' stock 

 material for spraying mixture." 



"The spraying mixture can be prepared whenever required, and in 

 the quantity needed at the time by slaking two pounds of lime, adding 

 this to forty gallons of water; ])our into this a pint of the stock arsenic 

 solution. Mix by stirring thoroughly and the spraying mixture is ready 



