. The dying hickory trees : Cause and remedy . Fig. 2.—Complete brood galleries of th hickory barkbeetle on surface of wood. (Author's illustration. > the wood on the main trunks will reveal curious centipede-like bur- rows (figs. 1, 2) in the bark and grooved on the surface of the wood. These are the galleries and burrows of the parent beetles and of their broods of young grubs or larvae. The girdling effect of these gal- leries is the real cause of the death of the tree-.


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Keywords: ., bookauthorunitedst, bookcentury1900, bookdecade1910, bookyear1912