THE CANADIAN HORTICULTURIST. 



Sour Cherries for Succession 



^Y^ HE same gentleman writes for advice 

 JL in selecting varieties of sour cherries 

 adapted to keep up a succession of fruit dur- 

 ing the season. 



" When my Early Richmond cherries," says 

 he, " begin yielding anything like a crop, I shall 

 be compelled to engage a great deal of help. I 

 should like a sequence of sour cherries to justi- 

 fy my having a gang of pickers until raspberry 

 time. I have about 140 Early Richmond, and 

 about 40 May Duke, and should like to put out, 

 say, 50 Montmorency and 50 Morello. I should 

 like to hear what you have to say for these 

 varieties, or if you would suggest any others." 



There is no better sour cherry for profit 

 to succeed the Early Richmond than the 

 Montmorency. It hangs well on the tree 

 until about August ist, and always sells 

 well ; while the English Morello hangs still 

 longer and is about the latest of market 

 cherries. Of the Dukes, one or two should 

 be mentioned and in particular the Califor- 

 nia Advance, which in season immediately 

 succeeds the May Dtike. It is probably 

 identical with the Late Duke, and is not only 

 a beautiful cherry but also a most abundant 

 bearer. Another wonderfully fine cherry, 

 as grown in sandy loam in our experimental 

 plot, is the Reine Hortense, of which the 

 season is also about the middle of July. 

 Though of the Duke class, the tree is more 

 vigorous and spreading, and the fruit is 

 very large and luscious. The cherries are 

 evenly distributed on the tree, and are so at- 

 tractive in appearance that they command 

 their own market. 



Power Sprayers 



WITH so many manufacturers work- 

 ing to meet the present demand 

 among fruit growers for some satisfactory 

 power sprayer, we hope for one both 

 economical and effective before very long. 

 Already we have a sprayer which is run by 

 carbonic acid gas pressure, by which the 

 power is estimated to cost only about 25 

 cents a barrel, and to give double the pres- 

 sure of hand power. Gasoline engines are 



expensive, so that at present these are not 

 likely to be used except by the professional 

 sprayman, who may make it pay to apply 

 spraying mixtures at a certain price per gal- 

 lon. Another scheme, which is not new, is 

 to have the pump run by a sprocket chain 

 from the wagon wheel, but so far this has 

 been imperfect, because the power ceased 

 when the wheel stopped. In a new sprayer of 

 this kind, recently invented in Illinois, there 

 is an air chamber of half a barrel capacity 

 in which the air is so compressed, as the 

 wagon moves, that the power is kept up for 

 some minutes after stopping. Surely this 

 is hopeful progress. 



Bark Lice 



MR. JAMES SHAW, of Lakeport, 

 has a young apple orchard seven 

 years planted, which is growing nicely, but 

 is affected already with the oyster shell bark 

 louse. He writes : 



" I have been advised to grease the trees, but 

 before doing so I write for your advice. If 

 grease or oil is recommended please state what 

 kind is preferred and in what season it should 

 be applied." 



The oil that is most destructive to the 

 bark louse is kerosene, which is at the same 

 time injurious to the trees unless applied 

 with great care. Painting with linseed oil 

 is also said to be helpful. 



We would advise our correspondent to 

 scrape off all loose bark, and then about the 

 1st of June, when the young lice begin to 

 move, wash thoroughly all parts affected 

 with a strong solution of soft soap and 

 washing soda; or spray thoroughly the 

 trunk and branches with washing soda and 

 water, ^ of a pound to a pail of water. 



Kniffen System of Grape Pruning 



MR. W. C. WEBSTER, Stoney Creek, 

 writes : 



" In the November number of your journal I 

 notice a reference to the Kniffen system of 

 grape pruning. I would be very glad if you 

 would explain it. I changed my vineyard 

 to this system last year for convenience, labor 



