Annual report . Fig. 8 Hickory bark smaller figure shows thegallery of the adult and theegg notches, the larger the gal-leries of young larvae (orig-inal) 64 NEW YORK STATE MUSEUM the identity of this pest. In very early stages of the attack thelongitudinal gallery described above, with a series of minute notchesfor the reception of eggs on either side, may be all that can befound. Only a little experience is necessary before one can recog-nize the characteristic galleries of this borer. They are almost in-variably to be found somewhere upon infested trees, since an at-tack is rarel
Annual report . Fig. 8 Hickory bark smaller figure shows thegallery of the adult and theegg notches, the larger the gal-leries of young larvae (orig-inal) 64 NEW YORK STATE MUSEUM the identity of this pest. In very early stages of the attack thelongitudinal gallery described above, with a series of minute notchesfor the reception of eggs on either side, may be all that can befound. Only a little experience is necessary before one can recog-nize the characteristic galleries of this borer. They are almost in-variably to be found somewhere upon infested trees, since an at-tack is rarely discovered before at least some of the grubs havecommenced working- across the bast Fig 9 Hickory bark beetle, galleries made by the adult and the full-grown larvae (original) Life history and habits. The life history of this borer may besummarized as follows: The beetles appear from the last ofJune till the last of July and may be found in Xew York State up REPORT OF THE STATE ENTOMOLOGIST 10,12 65 to the middle of August. Observations at Bronxville on July iothshowed numerous dead leaves and tips of branches upon affectedtrees. The beetles were then just beginning to enter the bark. OnAugust 5th a number of beetles were still working in the leaf stem,others were entering the bark and some had evidently become wellestablished. The beetles bore the young twigs and burrow in theterminal buds and green nuts, evidently for food, and in this man-ner frequently cause the wilting of leaves and the death of they attack the bark of the trunk and the larger branches,each female making a vertical gallery an inch or more in length,along the sides of which she deposi
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Keywords: ., bookcentury1900, bookdecade1900, booksubjectscience, bookyear1902
