/duy"bak'/, n. Plant Pathol.
a condition in a plant in which the branches or shoots die from the tip inward, caused by any of several bacteria, fungi, or viruses or by certain environmental conditions.
[1885-90, Amer.; DIE1 + BACK2]

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 common symptom or name of disease, especially of woody plants, characterized by progressive death of twigs, branches, shoots, or roots, starting at the tips. staghead is a slow dieback of the upper branches of a tree; the dead, leafless limbs superficially resemble a stag's head. Dieback and staghead are caused by many fungi and a few bacteria that produce cankers, anthracnose, wilts, and stem or root rots. Nematodes, stem- or root-boring insects, mechanical damage, paving over roots, winter injury from cold or deicing salts, and a deficiency or excess of moisture or an essential element may cause dieback, directly or indirectly.

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Universalium. 2010.

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Look at other dictionaries:

  • Dieback — may refer to a number of plant problems and diseases including: Forest dieback caused by acid rain, heavy metal pollution, or imported pathogens The death of regions of a plant or similar organism caused by physical damage, such as from pruning… …   Wikipedia

  • dieback — ☆ dieback [dī′bak΄ ] n. a disease of vascular plants characterized by a dying backward from the tip of twigs and branches and caused by parasites, insufficient moisture, etc …   English World dictionary

  • dieback — /ˈdaɪbæk / (say duybak) noun a condition of plants observed to start at the outer leaf tips causing gradual yellowing, loss of leaves and progressive lifelessness; may be caused by a variety of agents including salinity, drought, insect damage or …  

  • dieback — noun Date: circa 1886 a condition in woody plants in which peripheral parts are killed (as by parasites) …   New Collegiate Dictionary

  • dieback — noun The browning and death of a plant shoot starting at the tip; either due to disease or climate conditions …   Wiktionary

  • dieback — n. disease of plants characterized by gradual decay; dying of the outer portions of a plant caused by disease or due to weather damage; decay of part or all of the woody part of a plant …   English contemporary dictionary

  • dieback — noun a condition in which a tree or shrub begins to die from the tip of its leaves or roots backwards …   English new terms dictionary

  • dieback — die•back [[t]ˈdaɪˌbæk[/t]] n. 1) ppa any disease of plants characterized by the death of branches or shoots from the tips inward to the trunk or stem 2) ecl the unseasonal decline and loss of foliage in a forest or stand of vegetation • Etymology …   From formal English to slang

  • dieback — noun a disease of plants characterized by the gradual dying of the young shoots starting at the tips and progressing to the larger branches • Derivationally related forms: ↑die back • Hypernyms: ↑plant disease …   Useful english dictionary

  • Forest dieback — Dieback is a condition in trees or woody plants in which peripheral parts are killed, either by parasites or due to conditions like acid rain.Two of the nine tipping points for major climate changes in the next century are directly related to… …   Wikipedia

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