Insects Injurious to the Apple. 



123 



pairs of sucker feet, exclusive of the anal pair, and by their dull 

 creamy-white appearance. 



The damage to the interior of the fruits is very different from 

 that of the Codling Moth. The sawfly larvae eat out large cavities 

 in the centre of the apple, and there is always a circular opening to 

 the exterior even when the larva? are quite small. The damage in 

 the young fruit checks the growth and it soon falls, the larva? 

 entering fresh fruitlets ; when more mature fruit is attacked the 

 whole of the interior is eaten out (Fig. 98) and a large black wet 

 cavity is formed. One or more larva? may be found in the same 



[F. Edenden. 



FIG. 98. APPLES EATEN OUT BY APPLE SAWFLY. 



The one on right shows exit hole of larva. 



apple. The larva? enter the fruit from the first infected fruitlet at 

 any part of its surface, very frequently they eat along the surface 

 first and then enter or they may pass on to the next fruitlet. The 

 mark shown in Fig. 99 is due to this habit of the sawfly larva, and 

 much disfigures and often deforms the apples. 



It is a widely distributed insect, but only locally common. So far 

 it has been recorded from Surrey, Kent, Bedfordshire, Cambridgeshire, 

 Nottinghamshire, Lincolnshire, Middlesex, Huntingdonshire, Hereford- 

 shire, and Lancashire, Manchester. West wood (1) described an attack 

 at Hammersmith. 



