elm sapwood beetle

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• Dutch elm disease — a disease of elms characterized by wilting, yellowing, and falling of the leaves and caused by a fungus, Ceratostomella ulmi, transmitted by bark beetles. [1920 25] * * * Widespread disease that kills elms, caused by the fungus Ceratocystis ulmi …   Universalium

• Bark beetle — The unrelated sawyer beetles (Monochamus) and some other wood boring beetle taxa (especially Cucujoidea) are sometimes called bark beetles too. Bark beetles Mountain pine beetle, Dendroctonus ponderosae …   Wikipedia

• angiosperm — /an jee euh sperrm /, n. Bot. a plant having its seeds enclosed in an ovary; a flowering plant. Cf. gymnosperm. [ANGIO + SPERM] * * * ▪ plant Introduction       any member of the more than 300,000 species of flowering plants (division Anthophyta) …   Universalium

• Oak wilt — Scientific classification Kingdom: Fungi Division: Ascomycota Subdivision: Pezi …   Wikipedia

• plant disease — ▪ plant pathology Introduction       an impairment of the normal state of a plant that interrupts or modifies its vital functions.       All species of plants, wild and cultivated alike, are subject to disease. Although each species is… …   Universalium

• Black Tupelo — Taxobox color = lightgreen name = Black tupelo status = secure image width = 240px image caption = Black Tupelo foliage and young fruit regnum = Plantae divisio = Magnoliophyta classis = Magnoliopsida ordo = Cornales familia = Cornaceae… …   Wikipedia