346 PESTS OF ORCHARD AND SMALL FRUITS 
fruit in midsummer. When full grown, the maggot leaves the fruit 
and enters the ground, its skin contracting and hardening to form a 
puparium. It remains there until the following season. ___ 
Where trees are badly infested, chickens may be made use of to 
scratch up and eat the puparia. 
No measures in the way of 
spraying are available. 
The Pear Midge 
(Contarinia pyrivora Riley) 
Early in the season the 
young fruit of pears becomes 
stunted and distorted. If a 
Fig. 545.—Section through young pear, 
showing work and larva of the Pear 
Midge. Original. 
fruit is cut open, tiny maggots will be >) i 
ye 
found within, working especially in and 
around the core. 
Eggs are laid when the buds first open Fic. 546. —Larve of the 
by an exceedingly small midge. After Pear Midge, enlarged and 
completing its growth the maggot leaves SRS Ee: Ea 
the fruit and enters the ground, where it remains until the follow- 
ing spring. There is one brood 
annually. 
No satisfactory means of con- 
trol has been devised. 
The Currant Fruit-fly 
(Epochra canadensis Loew.) 
In early summer a small, white 
maggot may be found working in 
the berries of currants or goose- 
berries. The parent insect is a 
Fre.547.—Workol the Currant Fruit: Yellowish, two-winged fly with 
fly. Original. barred wings. Eggs are laid 
