39 



Treatment is the same as for the previous species. 

 Other species of sawflies occur on the Rose in Britain, 

 but are not of any importance.* 



The chief remedies for sawflies are (i) spraying 

 with hellebore wash or arsenate of lead, and (2) removal 

 of surface soil and dead wood during the winter. 



MOTHS (Lepidoptera) INJURIOUS TO ROSES. 



A large number of caterpillars of moths feed upon 

 the foliage of the Rose. At least twenty may be found 

 fairly commonly on them, but usually only as isolated 

 larvae, which do not do much damage. 



The caterpillars work in three different ways. They 

 eat the foliage (Vapourer Moth, Buff-Tip, etc.) They 

 eat into the unopened blossoms and spin the tender 

 leaves together (Tortrix Moth or Rose Maggot), and they 

 tunnel into the leaves (Rose Gelechia or Miner). After 

 the Green Fly the next worst Rose pest is undoubtedly 

 the Rose Maggot or Tortrix. 



The caterpillars of moths can be told by the number 

 of their legs. There are two types found on Roses. 

 The first and commonest, such as the Vapourer, has six 

 jointed legs in front, four pairs of prolegs and an anal 

 pair. The second (as the Winter Moth) has only one 

 pair of prolegs in the middle. 



A few only of those moths which are found in their 

 caterpillar stage on .the Rose can be mentioned here. 

 Those chosen are generally common and often occur in 

 great numbers, so causing marked damage. 



* Emphytus rufocinctus and Poecilosoma cand"idatunt. The 

 latter appears in April and lays her eggs singly in the point of the 

 young branches. The larvae eat about i inch into the branch, 

 bore a round hole in the side and fall to the ground to pupate. 



