26 FRUIT INSECTS 



Many of the first brood larvae pupate in the fruit and the empty 

 pupa case is frequently found protruding from the burrow. 

 Apples infested by small larvae are frequently placed in storage 

 where they continue to feed and often cause considerable loss. 



The lesser apple worm moth has also been reared from plum, 

 from black-knot, a fungous swelling on plum branches, and from 

 certain insect galls on ehu and oak. 



Remedial ineasures. 



The treatment suggested for this insect is the same as that 

 for the codlin-moth, except that there is especial need of mak- 

 ing the second spraying, 3 to 4 weeks after the petals fall, very 

 thorough. To kill the young larv« entering at the stem and side 

 at that time the foHage and fruit siiould l)e tlioroughly coated 

 with a fine arsenical sj)ray. 



References 



U. S. Bur. Ent. Bull. 68, Pt. V. 1908. 

 Taylor, Jour. Ec. Ent., II, pp. 237-239. 1909. 

 U. S. Bur. Ent. Bull. 80, Pt. III. 1909. 



Apple Fruit-miner 



Argyresthia conjugella Zeller 



The larva of this small Tineid moth is a serious pest in the 

 apple orchards of western Canada. It also occurs in northern 

 Europe, where it frequently destroys the entire apple crop. In 

 Europe it originally fed on the berries of the Mountain Ash 

 and in Canada on the fruit of the Wild Crab (Pyrus fusca) 

 but it has now become thoroughly established on the culti- 

 vated apple. In England and Scandinavia it has been found 

 infesting the cherry. 



The injury is caused by the pinkish white larva, about | 

 inch in length, which burrows in all directions through the 

 fruit during July, August and September. The tissue around 



