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Slime flux, also known as bacterial slime or bacterial wetwood, is a bacterial disease of certain trees, primarily elm, cottonwood, poplar, boxelder, ash, aspen, fruitless mulberry and oak. A wound to the bark, caused by pruning, insects, poor branch angles or natural cracks and splits, causes sap to ooze from the wound. Bacteria may infect ...
Acer rubrum, the red maple, also known as swamp maple, water maple, or soft maple, is one of the most common and widespread deciduous trees of eastern and central North America. The U.S. Forest Service recognizes it as the most abundant native tree in eastern North America. [ 4 ] The red maple ranges from southeastern Manitoba around the Lake ...
Leptocoris trivittatus. The boxelder bug (Boisea trivittata), also called box bug, maple bug or, inaccurately, box beetle, is a species of true bug native to eastern North America. The western boxelder bug Boisea rubrolineata is a relative of this species and is native to western North America. Boxelder bugs are found primarily on boxelder ...
Carya glabra, the pignut hickory, is a common, but not abundant species of hickory in the oak-hickory forest association in the Eastern United States and Canada. Other common names are pignut, sweet pignut, coast pignut hickory, smoothbark hickory, swamp hickory, and broom hickory. The pear-shaped nut ripens in September and October, has a ...
Beech bark disease is a disease that causes mortality and defects in beech trees in the eastern United States, Canada and Europe. [ 1 ][ 2 ][ 3 ] In North America, the disease occurs after extensive bark invasion by Xylococculus betulae and the beech scale insect, Cryptococcus fagisuga. [ 4 ] Through a presently unknown mechanism, excessive ...
Description. [edit] Acer negundo is a fast-growing and fairly short-lived tree that grows up to 10–25 metres (35–80 feet) tall, with a trunk diameter of 30–50 centimetres (12–20 inches), rarely up to 1 m (3 ft 3 in) diameter. It often has several trunks and can form impenetrable thickets. [ 4 ] The typical lifespan of box elder is 60 ...
Heart rot. In trees, heart rot is a fungal disease that causes the decay of wood at the center of the trunk and branches. Fungi enter the tree through wounds in the bark and decay the heartwood. The diseased heartwood softens, making trees structurally weaker and prone to breakage. Heart rot is a major factor in the economics of logging and the ...
Acer circinatum, or vine maple, is a species of maple native to northwestern North America.Vine maple typically grows as a low-elevation coastal tree in temperate areas of high precipitation such as the west coast of Oregon and northern California, as well as the temperate rainforests of Washington and British Columbia. [1]