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[1] [2] It affects members of the Prunus genus such as; cherry, plum, apricot, and chokecherry trees in North America. The disease produces rough, black growths that encircle and kill the infested parts, and provide habitat for insects. The disease was first described in 1821 in Pennsylvania, but has spread across North America. While it was ...
Choke cherry is the most common reservoir host and a favorite food for the cherry leafhoppers. Other reservoir hosts include clovers and dandelions. [2] Sweet/sour cherries, as well as almonds and Japanese plums are all fruit tree reservoir hosts for the Cherry X disease. All of these, once infected, can act as a source for the disease to be ...
The bark of chokecherry root is made into an asperous-textured concoction used to ward off or treat colds, fever and stomach maladies by Native Americans. [17] The inner bark of the chokecherry, as well as red osier dogwood, or alder, is also used by some tribes in ceremonial smoking mixtures, known as kinnikinnick. [18]
Some trees were sprayed in 1945 at the end of the growing season and some trees were not. All of the trees that were sprayed in the fall of 1945 survived and produced fruit in 1946. Yields for the unsprayed trees that survived were 36 pounds per tree. Sprayed trees yielded nearly three times more than the controls with 107 pounds per tree. [22]
Long-distance spread of the disease occurs through the planting of infected trees, as well as budding and grafting of infected tissue. To prevent the establishment of the disease, guidelines typically call for testing of rootstocks and budwood before planting, removal of all trees known and suspected to be infected and eradication of ornamental and wild cherry trees from the surrounding area.
Prunus is a genus of flowering trees and shrubs from the family Rosaceae, which includes plums, cherries, peaches, nectarines, apricots and almonds (collectively stonefruit).The genus has a cosmopolitan distribution, [4] being native to the temperate regions of North America, the neotropics of South America, and temperate and tropical regions of Eurasia and Africa, [5] There are about 340 ...
The disease can infect trees as young as 6 years-old, and infects trees throughout their lifespan. [2] Diagnostic symptoms include crown yellowing and thinning, a distress crop of cones, red brown stained outer heartwood, and laminate decay (decay that separates along annual rings).
Chokecherry gall midge infected fruit later stage. Tiny yellowish-orange maggots feed on the developing fruit. As feeding continues, the developing fruit becomes enlarged (gall). The gall is the enlarged fruit, which is pear-shaped and hollow. There may be a combination of normal berries and galls on the same fruit cluster.