92 Roses for Amateurs. 



of mustard dross if it can be procured. Kainit, similarly 

 treated, might also prove effectual. As Eehvorms are barely 

 visible to the unaided eye, the soil will need to be carefully 

 examined. In form, as the popular name suggests, they 

 resemble eels. Each extremity of the body is pointed, and 

 the creature measures just about a millimetre. 



Frog Hopper (Typhlocyba Rosce). 



Related to the Aphides, these disgusting-looking 

 creatures, at . any rate in the larval state when they are 

 surrounded by the protective secretion that has given rise to 

 the popular name of " Cuckoo Spit," prove weakening to 

 Roses if present in any numbers. Bentley's Quassia 

 Solution, if applied early in the season, will make the bushes 

 distasteful to the insects. Gardo and White's Abol may also 

 be usefully applied. The perfect insects have marvellous 

 leaping powers, and are seldom identified by the Rosarian. 

 The larvae are helpless when the protective covering is 

 removed. 



Gall-Flies. 



Several species of Gall Fly of the genus Rhodites make 

 most conspicuous galls on wild and cultivated Roses ; but 

 it is a moot point whether or not any great amount of harm 

 is done by their presence. Still, the galls are such well- 

 known objects, particularly the large Bedeguar one, that 

 those interested in Roses are, sooner or later, almost 

 certain to make its acquaintance. We have, therefore, 

 deemed it advisable briefly to refer to the interesting little 

 insects responsible for such a structure as the Bedeguar. 

 This is well shown in the illustration. The grubs actually 

 responsible for the "galls" live in the "cells" shown in 

 the section of gall in the illustration ; they also become 

 pupae therein, and finally emerge as black insects of 

 the form shown. Another species, R. centi folia, makes 



