16 



N. H. AGRI. EXPERIMENT STATION [Bulletin 247 



JUNE 



10 15 10 iS 



JULY 



5 10 15 30 25 



1926 



AUGUST 



^ 'P '?> ^,0 3S 



SEPTEMBEIR 



5 10 15 20 ;5 



OCTOBER 



CHART I. Life history of the white pine weevil. 



