# My Hawthorn Tree Is Turning Brown
Hawthorn trees (Crataegus spp.) are known for their showy flowers and distinct, long thorns. The deciduous trees grow 15 to 30 feet tall and have a moderate water requirement. Hawthorns adapt to a range of growing conditions and prefer areas of full sun. A pest infestation is the likely cause of brown trees.
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Identification
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Hawthorn trees are prone to infestation from the roundheaded or longhorned borers. The pests are bright-colored beetles that are medium- to large-sized with elongated bodies and antennae.
Damage
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Initial signs of pest presence include small holes in bark accompanied by secretion of a liquid. Affected tree foliage starts to discolor, brown and wilt. As damage progresses, the tree starts to suffer branch and limb die-back. The whole tree is eventually killed. Rounded borers are frequent pests of poorly growing and damaged trees.
Control
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Make sure that the selected tree variety is well adapted to weather and site conditions. Keep trees in good health with adequate irrigation, fertilization and minimal injuries. Prune and remove all affected tree areas. Dispose wood from the landscape as the beetles can emerge and re-infest plants.
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