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Canker: symptom produced by the pathogen. Eutypella canker infects many species of maple trees, most prevalently the sugar maple (Acer saccharum).Others commonly affected are the red maple (Acer rubrum), box elder (Acer negundo), striped maple (Acer pensylvanicum), Norway maple (Acer platanoides), sycamore maple (Acer pseudoplatanus), silver maple (Acer saccharinum), and black maple (Acer nigrum).
Acer negundo, also known as the box elder, boxelder maple, Manitoba maple or ash-leaved maple, is a species of maple native to North America from Canada to Honduras. [3] It is a fast-growing, short-lived tree with opposite, ash-like compound leaves.
Trunk injection or endotherapy also known as vegetative endotherapy, [1] [2] [3] is a method of target-precise application of pesticides, [4] [5] [6] plant resistance activators, [7] or fertilizers [8] into the xylem vascular tissue of a tree with the purpose of protecting the tree from pests, or to inject nutrients to correct for nutrient deficiencies.
This method has also been demonstrated to reduce pests such has anthracnose. [4] Proper sanitation of equipment could reduce exposure of contracting the pathogen. This would be equipment used in transportation, packing, storage, etc. [ 6 ] Crop rotation, as well as the removal of weeds is also helpful in reducing the pathogen in the soil. [ 4 ]
The disease can affect every part of the tree, from the fruit to the trunk. [14] Infected trees may die within months or can linger for years with severely reduced yields. In addition to the scorched appearance of the plant parts that gives the disease its name, plant tissues infected with the bacteria will exude milky or reddish-brown ooze.
Rhytisma acerinum is a plant pathogen that commonly affects sycamores and maples in late summer and autumn, causing tar spot.Tar spot does not usually have an adverse effect on the trees' long-term health. [1]
The fungal pathogen Cristulariella depraedans is found in Europe and North America and mostly affects trees in the genus Acer.Trees affected in Germany and Britain are primarily the sycamore (A. pseudoplatanus) and the Norway maple (A. platanoides), while in North America the most affected are A. platanoides, the red maple (), the sugar maple (A. saccharum), the silver maple (A. saccharinum ...
Acer oblongum is a medium-sized evergreen to semi-deciduous tree reaching a height of approximately 15–22 metres (49–72 ft). Unique among maples, this plant stays green all winter. Unique among maples, this plant stays green all winter.
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