12o EXPERIilEXTAL FARMS 



7-8 EDWARD VII., A. 1908 



Following are the emnlsions made, one barrel of each: — 



July 11. — 10 lbs. flour, 4* gallons kerosene, 36 gallons .vater, churned for 6 minutes 

 Practically no separation of oil after standing 14 hours. 



July 11. — Ditto, churned for 5 minutes. Practically no separation after 14 hours. 



Jiily 11. — Ditto, churned 4 minutes. Practically no separation after 14 hours. 



July 12. — 5 lbs. flour, 4^ gallons kerosene, 36 gallons water, churned for 5 minutes. 

 Only a very slight separation after 3 hours. Emulsion was used after stirring. 



July 12. — 10 lbs. fl.our, 4^ gallons kerosene, 36 gallons 'water. In this case the 

 flour was added to the kerosene without stirring and then 20 gallons water added with- 

 out stirring, then churned for five minutes and the rest of the water added. After 

 standing for 17 hours there was practically no separation of oil. 



July 12. — 5 lbs. flour, 4^ gallons kerosene, 36 gallons water. In this case the flour 

 was emptied into the coal oil, then 10 gallons of water added and churned for 4 min- 

 utes, after which the barrel was filled with water. 



After standing 2 hours there was no separation of kerosene, biit after standing 

 over night more than half the oil had separated. The oil and part of the emulsion were 

 then dipped out into another barrel, 5 lbs. of flour were added to it and then churned 

 for 3 minutes, when the emulsion was found quite satisfactory. 



From these experiments it was clearly demonstrated that a satisfactory emulsion 

 containing approximately 11 per cent of kerosene could be made by using only 5 

 pounds of flour to the barrel, in other words only 5 lbs. of flour are necessary, when 

 an emulsion is formed, to hold in suspension 4i gallons of kerosene for two hours. A 

 poor grade of floiir answers the purpose well. 



The cost of one barrel of emulsion would thus be: — 



Cents. 



5 lbs. flour at $1.75 per 100 lbs ^ 9 



^ 4| gallons kerosene at 16 cents 72 



Total 81 



When the emulsion is not to be used at once or within two hours, twice th(^ 

 quantity of flour should be used, with which quantity the oil will not separate in 

 twelve hoiirs and more. 



Formula. 



Formula recomm.ended for kerosene emulsion made with flour for destroying- aphis 

 on apple and plum trees. 



5 pounds flour (or 10 lbs. if emulsion is not used within 2 hours). 



4^ gallons kerosene. 



36 gallons water. 



Pour the kerosene into the barrel, put in the flour and stir thoroughly, then pour in 

 20 gallons of water and churn violently for from 4 to 5 minutes, now add remainder 

 of water and the emulsion is ready for use. 



There were about 700 gallons of kerosene emulsion made with flour used at the 

 Central Exi>erimental Farm in 1906. The chief advantage of using flour is that the 

 emulsion can be made easily and quickly. 



VEGETABLES. 



farmers' list of best vegetables. 



The results of variety tests of vegetables for the past eighteen years are sum- 

 m.arized in the following table, where a list is given of the vnrieties of each kind of 

 vegetable which are considered the best to plant. 



Asparagus.- — Conover's Colossal is the best aH round variety, but this is more 

 subject to rust than Palmetto or ArgenteuiL 



