ROSE PESTS. 



241 



Scale Insects — The liose Scale (Diaspis rosie) and 

 the Brown Scale (Lecanium persicae) infest the shoots and 

 leaves of roses, especially those grown under glass. The 

 first-named attacks wild roses, and may also be frequently 

 found on garden roses. The Brown Scale lays its eggs 

 about the middle of May, and the larvae appear in June. 

 The latter are of a yellow or pale-red tint, and furnished 

 with fine filaments at both ends. During the summer 

 they wander about the shoots, piercing the epidermis and 

 sucking out the sap. The following spring they moult 



[Photo : H. A. Smi' 

 EOSE LEAVES EATEN BY WEEVILS. 

 One of tht5 weevils may be seen on a leaf busy f€edin« 



and soon attain maturity, their presence being indicated 

 by their reddish-brown oval or hemispherical bodies at- 

 tached firmly to the bark. The Eose Scale females lay 

 their eggs in August. In due course orange larvae are 

 produced, and these settle themselves down to sucking 

 out the sap. Eventually they clothe themselves with a 

 deep red scale, and when they reach maturity lay eggs, 

 and finally die. 



Remedies. — Spray with a Soft Soap and Quassia Solu- 

 tion (Formula No. 14) in Alay and June for the Brown 



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