BOSES. 369 



eating out all the green portion and leaving them skeletonized, 

 thus giving the Eose trees a most imsightly appearance. This 

 insect usually appears just as the flowers are beginning to open, 

 and when there is a great number of them, the whole bush is 

 soon over-run, and all the leaves destroyed. We have found 

 the use of white hellebore, applied in the same manner as recom- 

 mended for the Gooseberry Saw-fly, sure destruction to them. 

 The hellebore was stirred into the water in the morning, allowed 

 to stand until about sundown, and then appHed with a sprinkler 

 from a common wat«ring-pot. This is a very convenient and 

 cheap means of getting rid of these disgusting slugs. 



In some seasons the Aphis or Green-fly become very numerous, 

 completely covering the ends of the young shoots, and sucking 

 out the sap. They increase very rapidly, and should not be 

 neglected. The little Leaf-hopper also will appear in thousands 

 sometimes, and feeding on the underside of the leaves, cause very 

 serious injury by their operations. The Leaf-hopper that affects 

 the Grape Vine is figured and described at page 112 of the 

 Report of the Fruit Growers' Association of Ontario for 1870^ 

 and so similar are its habits to those of the Eose Leaf-hopper, 

 that what is there said concerning that insect will apply equally 

 well to this. 



The best means with which to combat both the Aphis and the 

 Leaf-hopper is, frequent syringing with strong tobacco water. This 

 is sure destruction to the Aphis, and tolerably efficient upon the 

 Leaf-hopper. We have been nearly exempt from the Leaf-hopper 

 since we have used the white hellebore in water for the slugs, 

 but, whether their decrease is owing to the hellebore or to one of 

 those periodical diminutions in their number, arising from the 

 operation of imknown causes, to which they are subject, we are 

 as yet iinable to say. 



The Eose-bug is a small beetle which feeds upon the leaves. 

 They are very destructive, and when suffered to live, soon become 

 very numerous, and exceedingly troublesome. They will feed 

 not only upon the Eose, but upon the Grape Vine, the Cherry 



