540 STATE BOARD OF AGRICULTURE. 



of it as if 40% nicotine were employed, and any strengtlis of nicotine 

 other than those mentioned should be diluted in proportion to their 

 strengths. 



KEROSENE EMULSION. 



J'lace two gallons of ordinary kerosene in a warm place, either in a 

 warm room or in the sun, and allow to become as warm as possible with 

 out dnnger from fire. Boil 1 pound of laundry soap or whale oil soa]) 

 in a gallon of soft water until completely dissolved. Remove the soap 

 solution from the fire, and while still boiling hot, add the kerosene and 

 agitate vigorously for 10 minutes, or until the oil is emulsified, with a 

 spraying pump by forcing the liquid back into the vessel from whieli it 

 was pumped. When the liquid is perfectly emulsified it will appear 

 creamy in color and will flow evenly down the side of the vessel when 

 allowed to do so. Care should be taken to completely emulsify the oil 

 and this is accomplished much more easily when the mixture is hot. 



This strong emulsion may now be readily diluted with water and used, 

 or it may be stored away for future use. When cold it becomes like sour 

 milk in appearance and should be dissolved in three or four times its 

 bulk of hot water before diluting witli cold water. If the water is at all 

 hard, ''break" it by adding a little sal-soda before putting in the soap. 



Small amounts of this emulsion may be made by using the ingre<lients 

 in small quantities, but in the same relative proportion. It is used at 

 the rate of 8 or 10 parts of water to 1 part of emulsion. 



HELLEBORE. 



White hellebore is the powdered root of a plant. It kills both by con- 

 tact and as an internal poison. It may be applied either dry or in the 

 form of a liquid. When used dry it should be mixed with three or four 

 times its weight of flour or of plaster and then dusted on the insects. 

 Applied wet, one pound should be mixed with twenty-five gallons of water 

 and this liquid applied as a spray. 



INSECT POWDER^ BUHACH, PYRBTHRTTM. 



This valuable remedy has one drawback — its cost. It is too expensive 

 for use on a large scale. It kills insects through their breathing pores, 

 but is harmless to man and beast. It will kill many of the insects of the 

 garden if dusted on or applied as a spray at the rate of 1 ounce to 2 

 gallons of water. 



Use the powder when it is undesirable to use poison, but never buy 

 any unless it comes in tightly sealed packages. It loses its strength 

 on short exposure to the air. An hour will suffice to weaken it. It 

 must be applied from time to time, as it quickly loses its strength. 



HYDRATBD LIjME. 



Freshly hydrated lime is sometimes useful, because of its slight caustic 

 properties. It is especially useful against such larv.ne of saw-flies and 

 beetles as are sticky, as well as those of the cherry slug and of the 

 asparagus-beetle. The lime may be dusted on and used as a substitute 



