INSECTS INJURIOUS TO BERRIES 



netting taking care to tie it carefully around the bottom. If 

 this is done just after the berries have formed, and before the 

 flies appear, none of the berries can become infested. 



A radical remedy is to destroy all of the fruit while it is 

 quite small before any of the larvae have had a chance to pupate. 

 Thus by the loss of one crop all the flies in the garden will be 

 destroyed, and reinfestation can only come from a neighbor's 

 field. As the flies do not often fly far from the bushes this in- 

 festation will come but slowly. 



FIG. 224. Yellow currant-fly, Epochra canadensis, laying eggs on currants 

 (Somewhat enlarged; photo by Paine.) 



The Dark Currant-fly (Rhagoletis ribicola). This fly is not 

 as well known as the preceding species, but in the state of 

 Washington and other places it is often very abundant and 

 destructive. The adult is only about half as large as a house- 

 fly. The body is shining black, the thorax marked by four 

 narrow yellow lines and a conspicuous yellow spot. The 

 wings are marked with four broad, brown cross bands, the 

 outer pair of which are united anteriorly. The habits are 

 similar to those of the preceding species, and the control 

 measures the same. 



