Amerind hawthorn isan evergreen shrubthat that grows from 2 to 5 feet marvelous and is often used in landscapes in warmer climate . This plant boast dark green , leathery leaves and is treat in blanched or pink star - shaped flower in the late winter and former natural spring . Although the Native American hawthorn is recognize for its low-down - maintenance need and lack of problems , this does not imply that it is without problems entirely . The industrial plant is susceptible to a few diseases that can colour and potentially kill the plant if it is not cared for properly .
Entomosporium Leaf Spot
One of the braggy problems with Native American hawthorn is its common susceptibility to entomosporium folio spot disease . This disease will broadly only stimulate enhancive harm to the plant , but austere infections can cause the hawthorn ’s leave to light off , realize the bush prone to succeeding infections , and vulnerable to damage from the cold and the infestation of insects .
Entomosporium folio spot can be recognized by the presence of maroon - colored splotches on the leave . These bit often rise together to circulate the infection to bigger region of the plant . The infected leafage of other plants distribute the disease during wet weather . It is most likely to be a trouble when temperatures are between 60 and 80 degree Fahrenheit and the plant ’s leave have been wet for an extended period of time , especially in the 12- to 24 - hour range . Planting Indian haw in field where water accumulates in the dirt will promote the growth of the disease . This particular species is well suited to well - drained filth because of this potential threat .
Root Rot
Another problem that plagues Indian haw is root rot . This disease is potentially deadly to the full plant and will often kill entire branches . It is also a disease that run to strike when the shrub is planted in poorly drained grime .
Root guff is a fungous infection that infect the origin system of the works and causes folio to wilt and come down off ; eventually , it make the twigs in the bush to pop off . The disease is broadly see as perpendicular , discolored streaks in the woody portions of the plant beneath the bark . Sometimes a sorry red or black fool will seep from the plant . septic industrial plant in general grow more slowly than common and finally refuse , according to the UC Davis Integrated Pest Management Program website .
Fire Blight
fervency blight is another problem that can occur in Indian hawthorn in certain instances . When the temperature are between 65 and 85 degrees and there is a rainstorm with overweight wind , the disease will sometimes show up soon after . Blight on the leafage and bloom of the plant will appear as dark , wilted spots that make the foliage drop prematurely . The disease can also affect the woody parts of the plant . It is a systemic bacterial disease that makes stirred works look like they have been burn by fire , hence the name .
The good news about ardor blight is that you may defend the spread of it by pruning the shrub . cut back infected limb or areas where the leave-taking and flowers appear to be infect will keep the spread of the blight and reduce the chance of future outbreaks .
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