SPRI'NG PRACTICE IN ECONOMIC ZOOLOGY. 



73 



The hind wings are pale dusky. The moths appear about the time 

 the bushes are in bloom and lay their eggs on the newly set berries. 

 The pupal stage is passed in a brown, paper-like cocoon, among the 

 leaves on the ground, the pupal period extending from July until 

 the following spring. 



Hand-picking the wormy berries is the most reliable remedy 

 but this must be deftly done, since the worms, when disturbed, have 

 the habit of quickly wriggling from the berries and making a rapid 

 descent to the earth by means of a silken thread spun for the occasion. 

 Burning the trash from under the bushes in early spring is also of 

 help in destroying the pupae. 



The Gooseberry Midge, Cecidomyia grossulariae, is a small, 

 yellowish fly, about one-tenth of an inch long, which deposits its 

 eggs beneath the skin of the young fruit. Remedy, hand-picking 

 and destruction of the infested berries. 



The Currant Fly, Epochra Canadetisis, is an orange-colored fly, 

 about the size of an ordinary housefly, and has the same general 

 habit as the preceding species. The white maggot, which develops 

 in the fruit, acquires the length of about one-third of an inch when 

 mature. Remedy, handpicking and destruction by burning of the 

 infested berries which color and prematurely fall to the earth. 



GENERAL PROGRAM FOR TREATMENT OF CURRANT 

 AND GOOSEBERRY. 



