144 Psyche [October 



6. A remedy tried by the writer which proved effective, yield- 

 ing sound fruit in a heavily infested region, was to cover the entire 

 bush with mosquito netting, thus keeping the flies away from the 

 berries. This should be done immediately after the fruit has 

 set; the fly does not attack very young currants or gooseberries. 

 Plate II, fig. 1 shows stages at which both fruits become infested; 

 the small currants at the end of the cluster have not been stung 

 and should be covered at this stage; the same is true of the smaller 

 gooseberries. 



This remedy was tried only on a small scale in gardens where 

 the fruit is grown for table purposes. It is not known whether 

 the method could be applied commercially. One large currant 

 bush required three and one half yards of double width netting 

 costing ten cents a yard. The netting should be tied closely about 

 the base of the bush to exclude the flies. The bush itself may be 

 tied together before applying the net, to make it smaller. 



BIBLIOGRAPHY. 



'73. Loew, H. In Smith. Miss, colls. 256. Monograph of thcDipteraof N. Amer- 

 ica. Pt. 3, p. ^S5. Dec. 1873. 



'83. Saunders, W. Insects Injurious to Fruits, 1883, p. 352. 



'92. Gillette, C. P. Bull. Colorado Exp. Sta. No. 19, p. 18, May, 1892. 



'91. Editors Insect Life. Injurious Insects of 1891 in Colorado. Ins. Life, Vol. 4, 

 p. 355. 1891-2. 



'94. Snow, W. A. Kansas Univer. Quar., Vol. 11, No. 3, p. 159, 1894. 



'95. Harvey, F. L. The Currant Fly, Goosberry Fruit-Fly. Ann. Rep. State 

 College, Maine, 1895, Pt. 2, p. 111. 



'97. Harvey, F. L. The Currant Fly, Gooseberry Fruit-Fly. Bull. 35, Maine 

 Agric. Expt. Sta. 1897. Also in 13th Ann. Rept. Maine Ag. Expt. Sta., 

 1897, p. 25. 



'98. Piper, C. V., and R. W. Doane. Insects Injurious to Currants and Goose- 

 berries. Washington Ag. Ex-p. Sta. Bull. No. 36, 1898. 



'10. Johannsen, O. A. Insett Notes for 1909. Maine Agric. Expt. Sta. Bull. 

 No. 177, p. 36. 1910. 



