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Girdled pecan twig Twig girdler on pecan twig This beetle is widely known for the damage it causes to pecan plantations, but also to lumber trees such as hickory , oak , poplar and elm . In late summer and fall, the adult female girdles small branches, 1 ⁄ 4 -to- 1 ⁄ 2 -inch (6.4 to 12.7 mm) diameter, with its mandibles, cutting through the ...
The dogwood twig borer is distributed in the United States of America wherever there are flowering dogwood trees. They are adaptable and although the bulk of a dogwood twig borer's diet is obtained from flowering dogwood trees, it can also feed on elm, azalea, and viburnum. Many species of fruit trees are attacked by the beetle.
Various animals can girdle trees through their feeding or others activities. In North America, trees are prone to damage by voles in particular girdling both their roots and trunk. [10] Among North American birds, the sapsuckers are the most common girdlers of trees. While sapsuckers will bore holes in tree trunks to feed upon insects, they ...
The hickory spiral borer kills many seedlings and young trees, and the pecan carpenterworm degrades both trees and logs. The twig girdler (Oncideres cingulata) attacks both small and large trees; it seriously deforms trees by sawing branches. Sometimes, these girdlers cut hickory seedlings near ground level.
A twig is a thin, often short, branch of a tree or bush. [1] The buds on the twig are an important diagnostic characteristic, as are the abscission scars where the leaves have fallen away. The color, texture, and patterning of the twig bark are also important, in addition to the thickness and nature of any pith of the twig. [2]
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Diseases that primarily or exclusively impact pecan trees. Pages in category "Pecan tree diseases" The following 13 pages are in this category, out of 13 total.
Various insects feed on the leaves, stems, and developing nuts. These include ambrosia beetles, twig girdlers, pecan nut casebearer, hickory shuckworm, phylloxera, curculio, weevils, and several aphid species. In the Southeastern U.S., nickel deficiency in C. illinoinensis produces a disorder called "mouse-ear" in trees fertilized with urea. [32]