-^ <!}^^(?tio9 DraLo^r. ^ 



Shaffer and Columbian. 



1103. SiK,— What is the difference be- 

 tween Shaffer's Colossal and Columbian rasp- 

 berries ? Is the parentage of this variety 

 known ? -T- M. B. 



Shaffer originated with George Shaf- 

 fer, of New York State, in 1869, and 

 was introduced by Chas. Green, of 

 Rochester. The late T. T. Lyon thought 

 it a hybrid between our two natives, 

 Occidentalis and Strigosus. 



Columbian resembles Shaffer very 

 much both in fruit and foliage. It is 

 said to be a seedling of the Cuthbert, 

 grown near Gregg. 



Both these varieties are vigorous grow- 

 ers, and the berries very large, purple, 

 in color, and excellent for canning. 



Aphis on Honeysuckle. 



1104. Sir, — I enclose a leaf from an 

 English "Honeysuckle." The plant is in- 

 fested with a bug of some kind and we find 

 it covering the vine. Will you please inform 

 me what it is and how to get rid of it ? 



The insect is a plant-ldus,e, which has 

 pioduced the honey-dew noticeable on 

 the leaves, and the remedies recom- 

 mended on the C. E. F. spraying calen- 

 dar for the apple aphis will be effectual 

 for this one. 



J. Fletcher. 



Central Experimental Farm. 



Oyster Shell Booklouse. 



1105* Sir, — I am sending you a twig cut 

 from a neighboring orchard. Can you tell me 

 what it is ? Is it or is it not the dreaded San 

 Jose scale? The tree from which the twig is cut 

 is literally covered with parasite. If it is as 

 destructive as it is ugly, and I presume it is, 

 will you please tell me how to destroy it? 

 Will anything short of burning the tree de- 

 stroy, and how can I prevent iti spreading ? 

 H. H. King. 

 Port Hope. 



This is not the San Jose scale, indeed 

 it has very little resemblance to it, being 

 of an entirely different shape, the latter 

 is round with a tiny dent in the centre, 

 the former is the shape of an oyster 



shell. Then, too, the San Jose scale ^^ 

 almost microscopic. 



This is the Oyster Shell booklouse, 

 unfortunately only too familiar to On- 

 tario apple-growers. Indeed very few 

 of the older orchards are free from it, 

 and some of them are almost ruined by 

 it. Under each of these oyster shaped 

 scales will be found masses of eggs, 

 varying from 20 to 100, which hatch 

 out in early June, and creep forth to a 

 fresh part of the bark, where they begin 

 sucking and soon become fixed, sub- 

 sisting upon the sap of the tree. The . 

 best means of destroying these scale 

 insects is by spraying with kerosene 

 emulsion. Perhaps the best time to 

 apply it is about June ist, when the 

 young lice are moving about. 



Woolly Aphis. 



IIO6. Sir,— Would you kindly give me 

 a remedy to extinguish the woolly aphis, 

 through your valuable paper. I have tried 

 pure coal oil No. 1 spray (lime, sulphur and 

 salt), also Paris green in bordeaux mixture, 

 but they are thriving better and spreading 

 more every year, and I do not wish their 

 company whatever, although it is very lonely 

 here. 



N. BUTCHART. 



Port Moody. 



This insect, known to entomologists 

 as schezoneura lanigera, is of the same 

 species as the apple root louse. It very 

 commonly affects the common thorn 

 bush in Ontario, from which it spreads 

 to various other fruit trees. Under 

 each patch of white down will be found 

 one large female with her young, and 

 late in the autnmn she deposits eggs for 

 the following spring, which are almost 

 microscopes. Both young and old de- 

 rive their nourishment from the sap of 

 the tree, thus weakening its growth. An 

 excellent wash is made of soft soap re- 

 duced to the consistence of paint by the 

 addition of a strong solution of washing 

 soda in water ; spraying with kerosene 

 emulsion will also be found efficaious. 



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