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  2. Hypoxylon canker of shade trees - Wikipedia

    en.wikipedia.org/.../Hypoxylon_canker_of_shade_trees

    Hypoxylon mammatum symptoms on aspen. Hypoxylon canker of shade trees has three primary species, through which the pathogen can infect a variety of hardwood shade trees. Hypoxylon atropunctatum is most commonly found on oak, Hypoxylon mammatum is a significant pathogen on aspen trees, and Hypoxylon tinctor infects sycamore trees.

  3. Dibotryon morbosum - Wikipedia

    en.wikipedia.org/wiki/Dibotryon_morbosum

    Included in this genus are multiple species of trees and shrubs, such as: Dibotryon morbosum infects are Prunus serotina (wild cherry trees), Prunus persica (peach trees), Prunus domestica (plum trees), and Prunus cerasus (sour cherry trees). [3] The main symptom of Dibotryon morbosum is its “knot-like” gall structure. These knots can vary ...

  4. Phytophthora ramorum - Wikipedia

    en.wikipedia.org/wiki/Phytophthora_ramorum

    Symptoms of the disease on larch trees include dieback of the tree's crown and branches, and a distinctive yellowing or ginger colour beneath the bark. [10] In August 2010, the disease was found in Japanese larch trees in counties Waterford and Tipperary in Ireland. [ 13 ]

  5. Armillaria root rot - Wikipedia

    en.wikipedia.org/wiki/Armillaria_root_rot

    Armillaria infects trees in temperate and tropical regions. Armillaria commonly infects stressed trees that have been weakened by insects, other pathogens and/or climate stresses. It can also kill healthy trees especially in dry areas, like coniferous forests in the western United States. This fungus is found worldwide, but prefers cool soils ...

  6. Spongy moth: Next invasive species destroying trees and ... - AOL

    www.aol.com/spongy-moth-next-invasive-species...

    The spongy moth is the newest forest-destroying insect, that feed off and destroys more than 300 types of trees and shrubs. What to know. The spongy moth is the newest forest-destroying insect ...

  7. Lymantria dispar in the United States - Wikipedia

    en.wikipedia.org/wiki/Lymantria_dispar_in_the...

    Trees use their energy reserves during re-foliation and may become weakened and exhibit symptoms such as the death of twigs and branches in the upper crown and sprouting of old buds on the trunk and larger branches. Weakened trees experience radial growth reduction of approximately 30 to 50 percent.

  8. Thousand cankers disease - Wikipedia

    en.wikipedia.org/wiki/Thousand_cankers_disease

    Thousand cankers disease (TCD) is a recently recognized disease of certain walnuts (Juglans spp.). The disease results from the combined activity of the walnut twig beetle (Pityophthorus juglandis) and a canker producing fungus, Geosmithia morbida. [1]

  9. List of poisonous plants - Wikipedia

    en.wikipedia.org/wiki/List_of_poisonous_plants

    jequirity, crab's eye, rosary pea, John Crow bead, precatory bean, Indian licorice, akar saga, giddee giddee, jumbie bead, ruti, weather plant Fabaceae: The attractive seeds (usually about the size of a ladybug, glossy red with one black dot) contain abrin, an extremely toxic ribosome-inactivating protein related to ricin.