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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 ]
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.
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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 found in North America. It is found in North America.
Agrilus biguttatus is a species of beetle in the family Buprestidae, the jewel beetles. Common names include oak splendour beetle , oak buprestid beetle , and two-spotted oak borer . [ 1 ] This beetle is known as a pest that causes damage to oak trees and is a major factor in oak decline .
Spathius agrili is a parasitic non-stinging wasp of family Braconidae which is native to North Asia.It is a parasitoid of the emerald ash borer (Agrilus planipennis Fairmaire), an invasive species which has destroyed tens of millions of ash trees in its introduced range in North America.