REPORT OF THE STATE ENTOMOLOGIST I908 I9 



the almost total destruction of the hloom in the acre of early IMoore 

 grapes noticed above. It is possible that this new American pest 

 is an introduced species, brought to the Chautauqua region on re- 

 cent importations of grape. It is to be hoped that it will not mul- 

 tiply greatly and become a serious menace to this important 

 industry. 



Remedial measures. Nothing very definite can be advised in 

 the way of control measures. Clean culture, supplemented by lib- 

 eral feeding, is the most hopeful method of avoiding serious in- 

 jury, as we have yet to find this insect very abundant throughout 

 large, well cultivated vineyards. Most of the infested clusters so 

 far as our observation goes, occur near the outside of a vineyard 

 in the vicinity of abundant natural shelters. The burning over of 

 grassy headlands and margins of ditches in early spring could 

 hardly cause much injury and might be of service in destroying the 

 v/andering maggots. The delicate parent insects would succumb 

 readily to pyrethrum powder and presumably would be stupefied 

 by heavy smoke. These insects fly mostly during the quieter part 

 of the day and it might be practical, in the case of a badly infested 

 vineyard, to watch for the appearance of the adults and then 

 stupefy or destroy them by generating a heavy smudge throughout 

 the vineyard. Attempts to control this midge by applications to 

 the vines before the flies appear are very likely to result in failure. 



Bibliography 



1904 Slingerland, M. V. & Johnson, Fred. Cornell Agric. Exp. Sta. 

 Bui. 224, p. 71-73. (Brief illustrated account with description of larva 

 and gall, as Cecidomyia) 



1908 Felt, E. P. Grape Belt, June 12; Buflfalo News, June 13; Country 

 Gentleman, June 18, 73:607; Economic Ent. Jour. 1:243. (Brief records of 

 injury, as Cecidomyia) 



1909 Grape Belt, May 18 (Records rearing of adult, outlines the life 



history and discusses remedies) 



1909 Economic Ent. Jour. 2 :257 (Records rearing and discusses im- 

 portance) 



Gladioli aphid 



Aphis gladioli n. sp. 

 The abundant occurrence of a plant louse upon gladioli bulbs is 

 something unusual. No outbreak of the kind had been previously 

 brought to our attention, and Dr L. O. Howard informs the writer 

 that he is unable to find any record of an aphid occurring upon 

 this showy plant. This new form of injury was first brought to 



