THE APPLE. 



309 



Ichneumon flies contribute greatly towards check- 

 ing their increase by laying their eggs in their 

 bodies. 



GRUBS OF ER3IIXE MOTH. 



Several kinds of beetles, either in their larva 

 or perfect state, attack the leaf, bark, or wood 

 of the Apple. 



^' Then the grub, 

 Oft unobserved, hiA-ades the vital core, 

 Pernicious tenant, and her secret cave 

 Enlarges hourly, preying on the pulp 

 Ceaseless." 



This grub is produced either from the egg of the 

 Codlin Moth {Tortrix pomonand) or, more rarely, 

 from that of the Apple- vVeevil {Curculio Bacchus). 

 The moth lays one of its eggs in the eye of an 



