380 EXPERIMENTAL FARMS 



1-2 EDWARD VII., A. 1902 



that it will be still more effective. It is a cheap and efficient remedy for this trouble- 

 some pest. The spraying was done March 26, and two sprayings were given each tree 

 on that date. 



The lime should be slacked with hot water, enough being used to well cover the 

 lime. As soon as slacked pour in cold water and stir until the whole mass is thor- 

 oughly mixed. It will need to be strained through a wire sieve before using. The 

 mixture should be kept agitated in the barrel, and a nozzle used which by reversing can 

 be easily cleaned. This mixture, with the addition of 15 pounds of salt per barrel, 

 makes a good whitewash for buildings, which work can be easily done with a spray 

 pump. 



KEROSEXE EMULSIOX EOR THE OYSTER-SHELL BARK LOUSE. 



An experiment to gain information as to the value of kerosene emulsion for de- 

 stroying the young lice when they have just hatched on apple trees was made in a 

 neighbour's orchard. The work was done on young trees two years planted, which 

 were all badly covered with the insect. Three experiments were made with this emul- 

 sion, and rive trees were treated in each case. 



The emulsion was made by dissolving one-half pound of hard soap in 1 gallon of 

 rain water which was brought to the boiling point when 2 gallons of kerosene was ad- 

 ded and churned briskly through a pump when it was quickly formed into an emulsion. 

 Experiment Xo. 1 was with this emulsion diluted with water in the proportion of 1 

 part of the oil used to 4 parts of water ( not 1 part of the emulsion to 4 parts of water). 

 Experiment Xo. 2 contained 1 part of oil to parts of water, and Experiment Xo. 3, 1 

 part of oil to 9 parts of water. 



While this mixture proved fairly effective, yet in every case the trees were not en- 

 tirely freed of the young insect. The spraying was thoroughly done, and it seems 

 strange that some of the trees were completely cleared while some had quite a few still 

 remaining. By giving two sprayings, one about a week after the other, this remedy 

 has been found quite effective. 



The spraying was done July 4, and notes taken later in the season. The emulsion 

 was put on during a bright day, and no noticeable damage was done to the leaves or 

 bark by the mixture. During a bright day the oil evaporates more quickly, and hence 

 perhaps is not so liable to injure the tree. 



TOBACCO WATER EOR THE OYSTER-SHELL BARK LOUSE. 



An experiment with tobacco water was also tried on five trees in the same orchard. 

 The solution was made by soaking 15 pounds of tobacco stems in a barrel of water 2-4 

 hours, and the liquid was used as a spray. The trees were badly covered with the in- 

 sects just hatched. The spraying Avas done July 4. It was found that this was of 

 little value, and the notes subsequently taken would indicate that not more than 10 

 per cent of the hatched insects were killed. 



GARDEX PEASE. 



Experiments were conducted with 84 varieties of garden pease. The object being 

 to determine the relative value of the different kinds for early, medium and late market 

 <-rops. The seed was sown on April 27 in two plots each, one row 06 feet long. The 

 rows were 4 feet apart and the seed was planted l£ inches deep and 2 inches apart. The 

 marketable green pease with pods were pulled when fit for use, and the yield per plot 

 obtained. The other plot was allowed to ripen, and the yield of ripened seed obtained. 



