46 NEW YORK STATE MUSEUM 



inclined to believe that fumigation with this material could be done 

 to the best advantage in eariy July and thus destroy the young mag- 

 gots before there was any material injury to the foliage. The ex- 

 periments referred to above were conducted in October and conse- 

 quently after much of the injury had been caused. There is a bare 

 poSvSibility that the physiological resistance of the small larvae is 

 greater than that of those half grown, a matter which should be care- 

 full}^ tested another season. 



Bibliography 



1764 Geoffrey, E. L. Hist, abreg. d. Insectes, Paris (Cecidomyia) 

 1873 Laboulbene, Alexandre. Soc. Ent. Fr. Ann., ser. 5, 3:313-26, pi. 9 

 (Cecidomyia) 



1890 Decaux, F. Soc. Ent. Fr. Bui., p. 68 (Cecidomyia) 

 1892 Rubsaamen, E. H. Berln. Ent. Zeitschr., 37: 329, 381 



1896 Kieffer, J. J. Wien. Ent. Zeit., 15: 92, 94 



1897 Syn. Cecid. de Eur. & Alg., p. 30 



1910 Rubsaamen, E. H. Zeitschr. Wissenschaft. Insektenbiol., 15:284 



191 1 Felt, E. P. N. Y. Ent. Soc. Jour., 19: 58 



1913 Chaine, J. Comp. Rend. Hebdom. Soc. Biol., 74: 156-58 



1913 Sci. Nat. Zool. x^nn. (Paris) ix ser., 17:269-359 



1 913 Anon. Tree Talk No. 2, Nov., p. 18 



1914 Felt, E. P. Econom. Ent., Jour. 8:94-95 



GRASSHOPPERS 



New York State suffered last summer from an almost unpre- 

 cedented grasshopper outbreak. The pests were confined largely 

 to the sandy areas bordering the Adirondacks and extending from 

 Poland, Herkimer county, through Fulton and Saratoga counties 

 north to Warren and Clinton counties, though isolated outbreaks 

 occurred on limited areas in other sections of the State. 



Reports of the unusual abundance of grasshoppers and accompany- 

 ing injuries came in earl 3' June. Press bulletins giving directions 

 for the control of the pests were prepared and sent to newspapers in 

 the infested region. This was supplemented by personal observa- 

 tions in and about Glovers\Hlle July loth, and a week later, at the 

 request of the Governor, the Entomologist went to the infested 

 region and, in cooperation with agents of the State Department of 

 Agriculture and others, proceeded to push an aggressive campaign 

 against the pests. It was ascertained at the outset that while the 

 grasshoppers moved freely from field to field and invaded the more 

 attractive grain, yet in a wider sense the insects were local. The 

 extended flights recorded of western species did not occur and a study 

 of the situation con\'inced us that individual effort would, as a rule. 



