TREATMENT FOR ROSE GRUBS. 



The most general plan is to wait until we see the 

 buds being eaten, the leaves ruined and then pinch the 

 grub in the leaf and kill it. 



What we want to do is to prevent these creatures 

 from doing any damage, and this can only be done by 

 spraying with arsenate of lead early in the year, say the 

 middle of April and not later than mid May. Perhaps 

 this will have to be done twice, but at the same time we 

 poison the foliage for many of the other Rose caterpillars. 



The Rose Leaf- Miner (Nepticulaanomalella). 

 The leaves of Rose bushes in the months of July 

 and October are frequently found to be marked with 

 serpentine pale tracks, with a dark central line (Plate 

 VIII., Fig. 3). On opening one of these we find inside 

 the tunnel a small amber-yellow, semi-transparent 

 maggot with a dark yellow central line with a dark 

 head ; in size about one-sixth of an inch (Plate VIII., 

 Fig. 2). 



This is the larva of a minute moth one of the 

 Tineince, a group of very small moths with long fringes 

 to their wings. This attack on the leaves is sometimes 

 quite harmful, but it is mainly on the coarser kinds of 

 Roses that we are troubled with this pest. 



LIFE-HISTORY AND HABITS. 



The moth appears first in May. The wing expanse 

 is a little more than one sixth of an inch. The front 

 wings are pale bronze, a little paler beyond the middle, 

 the apex abruptly dark violet and the fringe long and 

 grey ; the hind wings are grey with pale cilia ; thorax 

 the same colour as the base of the wings and the body 

 dark grey (Plate VIII., Fig. i). We find them resting 

 on the Rose leaves, and on palings, stakes, etc. 



