1 — Group of Dead Balsam. 

 2 — Tunnels (f.l ?'■'/"'■ aw.Y/H.sGory, in Birch. 

 3 — Balsam Bark Weevil. Bleeding spots on 

 bark of a green Balsam. 



4 — Balsam Bark Weevil. Inner face i 

 Balsam hark, showing larval mines. 

 .=;— Birch, killed hy Agrilus anxiiis Gory. 

 6— Dying Balsam. 



