Ads
related to: apple tree bark disease pictures and treatment
Search results
Results From The WOW.Com Content Network
Apple rubbery wood virus, also known as apple rubodvirus is a viral disease that causes apple rubbery wood in apple and pear cultivars. There are two varieties: ARWV 1 and ARWV 2 . It gets its name from its distinctive effect that it has on its host trees, which show unusual flexibility in the stems and branches after a few years of infection.
Viral diseases; Apple chlorotic leafspot ... Hollow apple High temperature Internal bark necrosis = measles Low pH and mineral nutrient imbalance Internal browning
Apple scab is a common disease of plants in the rose family that is caused by the ascomycete fungus Venturia inaequalis. [1] While this disease affects several plant genera, including Sorbus, Cotoneaster, and Pyrus, it is most commonly associated with the infection of Malus trees, including species of flowering crabapple, as well as cultivated apple.
Fungal diseases; Alternaria fruit rot Alternaria spp. Anthracnose canker and bull's-eye rot Pezicula malicorticus Cryptosporiopsis curvispora [anamorph] Armillaria root rot (shoestring root rot) Armillaria mellea Rhizomorpha subcorticalis [anamorph] Bitter rot Glomerella cingulata Colletotrichum gloeosporioides [anamorph] Black rot, leaf spot ...
The disease is caused by a fungus, Cryptostroma corticale. Normally, the fungus grows in dead wood as part of the normal decaying process. But the fungus has been increasingly found in living trees.
Slime flux, also known as bacterial slime or bacterial wetwood, is a bacterial disease of certain trees, primarily elm, cottonwood, poplar, boxelder, ash, aspen, fruitless mulberry and oak. A wound to the bark, caused by pruning, insects, poor branch angles or natural cracks and splits, causes sap to ooze from the wound. Bacteria may infect ...
In southern Germany apple and pear trees have been a part of the landscape for a long time, and are difficult to protect. The decline of apple and pear trees from their landscape can be expensive to replace and could have a negative effect on tourism. In the long-run, fire blight is a very important factor of economy and society. [citation needed]
Tree cankers (right) are caused by injuries to the bark that allow pathogens or insects in to infect the tree. Compared above is a healthy tree and segment (left) to a tree infected and containing a canker. Apple canker, caused by the fungus Neonectria galligena formerly Nectria galligena. [2]