40 



THE CANADIAN HORTICULTURIST. 



" a teaspoouful of Paris Green to a pail 

 of water " is about the right proportion 

 to use in destroying insect life, yet the 

 uncertainty as to its effects on the foliage 

 is as strongly felt as ever. This uncer- 

 tainty is no doubt produced by the 

 " indefinite quantity " as referred to by 

 Mr. Thompson, Ganad'mn Horticulturist 

 p. 156, used on a given surface of foliage 

 and in the manner of using it. During 

 the past five or six years I have used in 

 my gai'den and orchard about one pound 

 of Paris Green per acre per annum, and 

 have never known any injury to the 

 foliage. I mix a quarter of an ounce 

 of Paris Green and about double the 

 bulk of flour with two gallons of water, 

 and apply while thoroughly mixed, with 

 a hand syringe having a very fine rose 

 nozzle. 



The quantity to be applied to each 

 tree must depend upon the size of the 

 tree, one gallon being sufficient for a 

 tree with bloom enough to produce four 

 or five barrels of fruit. 



It should be applied when the tree is 

 in full bloom, and again about a week 

 later. 



Injury to the foliage is caused by 

 using too much Paris Green. Anyone 

 may see however that the quantity of 

 poison used on each tree is not neces- 

 sarily in proportion to the quantity of 

 Paris Green to each gallon of water, but 

 to the quantity of the mixture apjilied to 

 each tree. 



As to the manner of applying the poi- 

 son to the apple tree so as to accomplish 

 the greatest good, with" the least injury 

 to the foliage, it should be understood 

 ( 1 ) that the poison, to be effectual, must 

 be applied to the centre of each blossom 

 and that the smallest atom is sufficient, 

 and {'!) that any of the poison falling 

 upon any other part of the ti-ee will in 

 no way pi-event the operations of the 

 Codlin moth. The spray should be so 

 projected that it may fall on the blos- 

 soms in a very fine mist. 



THE 



Canabimi iBortkulturist. 



)N Illus- 

 trated 

 Monthly Journal, de- 

 voted to the interests 

 ' of Fruit Growers, 

 Kardeners, and Gentle- 

 men owning rural or su- 

 burban homes. 



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 anniial distribution of premium plants and 

 trees. 



Pd. 86. — If your address label reads 

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This Journal is not published in the in- 

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