Bui. 273, U. S. Dept. of Agriculture. 



Plate IV. 



















■ 



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ii 1 







I— — — ^xba^ 



!ra^^^r <; ; ".<-•' ;#r1 



'"'--.Vi'"~ -' 







Fig. 1.— Screen on Lunging Island, Isles of Shoals, N. H., on which 57 Larv/e 

 were Caught During May, 1314. Ocean in Background. Vegetation in 

 Foreground is Unfavorable Food for the Larv/e. (Original.) 



Fig. 2.— Screen on Holts Hill, Henniker, N. H., where Two Larv/e were 

 Caught in 1914. (Original.) 



SCREEN TRAPS FOR WIND-BLOWN GIPSY-MOTH LARV/E IN NEW 



HAMPSHIRE. 



