. The nut culturist : a treatise on the propagation, planting and cultivation of nut-bearing trees and shrubs, adapted to the climate of the United States ... Nuts. 196 THE NUT CULTPEIST. depredators are scarcely known, except to a few profes- sional entomologists, and unless they become more de- structive in the future than they are at present, or have been in years past, nut culturisbs have little to fear from their depredations. Among the most common species of insects injurious to the hickory, the following may prove most annoying to the cultivator. The hickokt-twiq gibdler {Oncideres cing
. The nut culturist : a treatise on the propagation, planting and cultivation of nut-bearing trees and shrubs, adapted to the climate of the United States ... Nuts. 196 THE NUT CULTPEIST. depredators are scarcely known, except to a few profes- sional entomologists, and unless they become more de- structive in the future than they are at present, or have been in years past, nut culturisbs have little to fear from their depredations. Among the most common species of insects injurious to the hickory, the following may prove most annoying to the cultivator. The hickokt-twiq gibdler {Oncideres cingula- tus. Say).âA small yellowish-gray beetle, a little less thau an inch long, usually appearing in this latitude during August, the females depositing their eggs in the twigs of from a quarter to a* half-inch in diameter. On old large trees the loss of a few or many of these is scarcely noticed; but on young seedlings or grafted stock it is quite a different affair, for on such plants the females usually select the leader in prefer- ence to the lateral twigs in which to de- posit their eggs. The female- girdles the twigs for the purpose of providing proper and acceptable food for her progeny; that lis, first the green, then the slowly drying, then the perfectly hard, seasoned hickory or whatever kind she may have attacked. Selecting a suitable twig, she rests upon it, usually with head downward (Fig. 70), and with her n;andibles cuts out a ring of bark about one-twelfth of an inch wide, and deep enough to reach the firm wood â â¢nderneath. The place selected for this annular inci- foot below it, and in some instances she will cut two incisions on the same twig some distance apart, but usually there is only one on a twig. While cutting this incision she will sometimes rest long enough from her labors to deposit an egg in the bark above. The num- ber of e^gs she deTDo-sits in the twig is probably variable,. FIG. Please note that these images are extracted from scanned
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Keywords: ., bookcentury1800, bookdecade1890, bookpublishernewyo, bookyear1896
