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Juglone occurs naturally in the leaves, roots, husks, fruit (the epicarp), and bark of plants in the Juglandaceae family, particularly the black walnut (Juglans nigra), and is toxic or growth-stunting to many types of plants. [1] It is sometimes used as an herbicide, as a dye for cloth and inks, and as a coloring agent for foods and cosmetics.
Juglans nigra, the eastern American black walnut, is a species of deciduous tree in the walnut family, Juglandaceae, native to central and eastern North America, growing mostly in riparian zones. Black walnut is susceptible to thousand cankers disease , which provoked a decline of walnut trees in some regions.
Walnut trees are any species of tree in the plant genus Juglans, the type genus of the family Juglandaceae, the seeds of which are referred to as walnuts.All species are deciduous trees, 10–40 metres (33–131 ft) tall, with pinnate leaves 200–900 millimetres (7.9–35.4 in), with 5–25 leaflets; the shoots have chambered pith, a character shared with the wingnuts (Pterocarya), but not ...
deciduous: falling seasonally, as with bark, leaves or petals; herbaceous: not woody; usually green and soft in texture; perennial: not an annual or biennial; succulent (adjective): juicy or fleshy; unisexual: of one sex; bearing only male or only female reproductive organs; woody: hard and lignified; not herbaceous [12]
Print/export Download as PDF; Printable version; In other projects ... This article is a list of diseases of black walnuts (Juglans nigra). Bacterial diseases ...
Buckwheat. Despite its name, buckwheat doesn’t contain any wheat at all, making it a popular grain in gluten-free diets. While buckwheat groats, or kernels, contain a good amount of protein ...
Instead, in TCD the bark remains firmly attached to the canker face making the necrotic areas very difficult to observe. Branch cankers usually are not visible until the outer bark is shaved to expose the beetle tunnels, although during late stages of the disease a dark amber stain may form on the bark surface in association with the cankers.
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