228 DISEASES AND ENEMIES OF GROWING PLANTS. 



in the winged form. In this state it is the most easily / 

 destroyed, by hanging wide-mouthed vials of sweetened 

 water upon the trees, which attract not only these, but 

 also many other noxious insects. 



807. Figure 71, the rose-bug as it is very 

 generally but improperly called, is a bectlq be- 

 longing to the chafer family, and is very destructive 

 to flowers and foliage. When it occurs in great 

 numbers upon bushes that can be reached by 

 hand, it should be shaken off into pans of hot 

 The larva lives in the ground like the others of 

 this family, and when turned up by the plough is greedily 

 devoured by poultry. 



808. The common click-beetle or spring-beetle, 

 (Fig. 72,) is the parent of the wire-worm, and 

 should be killed whenever met with, as well as 

 all of this family, which can be readily distin- 

 guished by their faculty of springing into the 

 air when laid upon their backs, by means of a 

 Flg * 72 peculiar joint beneath the thorax. 



809. The striped potato-beetle, (Fig. 73,) 

 is often found eating holes through the 

 leaves, in both the perfect stage and in the 

 larva, which is the filthy slug so common 

 and so injurious in some seasons. Lime or 

 ashes sprinkled profusely upon the plants, 

 will often destroy them, and when this fails, 

 they can be shaken into dishes of boiling water or salt 

 ju id water. 



810. The oak-pruner, (Fig. 74,) is the parent of a white 

 grub, (Fig. 75,) which bores into the small branches and 

 twigs of the oak tree, making a cylindrical burrow, and 

 cutting the branch nearly through ; after which it retires 



