34 CULTURE OF THE ROSE. 



Two thorough and well-timed applications will suffice to 

 destroy the year's crop of slugs. 



The rose-bug is endowed with a constitution which 

 defies tobacco and soap ; and, though innumerable remedies 

 have been proposed, we know no better plan than to pick 

 them off the bushes by hand, or, watching a time when 

 they are chilled with cold, to shake them off upon a cloth 

 laid on the ground beneath. In either case, sure work 

 should be made of them by scalding or crushing them 

 to death. 



The following account of the rose-bug and the slug is 

 from Dr. Harris's work on "Insects Injurious to Vegeta- 

 tion:" 



" The saw-fly of the rose, which, as it does not seem to have 

 been described before, may be called Selandria Rosce, from its 

 favorite plant, so nearly resembles the slug-worm saw-fly as not to 

 be distinguished therefrom except by a practised observer. It is 

 also very much like Selandria barda, Vilis, and pygm&a, but has 

 not the red thorax of these three closely-allied species. It is)f a 

 deep and shining black color. The first two pairs of legs are 

 brownish-gray, or dirty white, except the thighs, which are almost 

 entirely black. The hind legs are black, with whitish knees. 

 The wings are smoky and transparent, with dark-brown veins, 

 and a brown spot near the middle of the edge of the first pair. 

 The body of the male is a little more than three-twentieths of an 



