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Agrilus anxius, the bronze birch borer, is a wood-boring buprestid beetle native to North America, more numerous in the warmer parts of the continent and rare in the north. [1] It is a serious pest on birch trees (Betula), frequently killing them. The river birch Betula nigra is the most resistant species, while other American birches are less so.
Agrilus is a genus of jewel beetles, notable for having the largest number of species (about 3000) of any single genus in the animal kingdom. [3] Species of the genus have a cosmopolitan distribution on all continents except Antarctica, [ 4 ] and feed on a wide variety of flowering plant hosts. [ 5 ]
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Like other North American birches, gray birch is highly resistant to the bronze birch borer (Agrilus anxius). [10] This is due to birches in North America sharing a coevolutionary relationship with the borer, allowing it to develop resistance to the bug. Despite this, the borers can still damage the trees if they are weakened by other means.
Bronze birch borer is a major pest among birch species. [25] Under repeated infestation or stress to the tree from other sources, bronze birch borers may kill the tree. [25] The insect bores into the sapwood, beginning at the top of the tree and causing death of the tree crown. [26] The insect has a D-shaped emergence hole where it chews out of ...
Agrilus cuprescens, known generally as the rose stem girdler or bronze cane borer, is a species of metallic wood-boring beetle in the family Buprestidae. It is found in Europe and Northern Asia (excluding China) and North America. [1] [2] [3]
Agrilus granulatus, commonly known as the granulate poplar borer, is a species of metallic wood-boring beetle in the family Buprestidae. It is found in North America. It is found in North America. [ 1 ] [ 2 ] [ 3 ]
Agrilus cephalicus, known generally as the dogwood agrilus or dogwood cambium borer, is a species of metallic wood-boring beetle in the family Buprestidae. It is ...
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