Maple trees are often under a great hand of stress when planted in suburban options due to urban pollution , stain disturbance and urban growth . The stress can de-escalate the tree and make it more susceptible to a wide-eyed range of diseases . When a maple tree begins to refuse it is often only referred to as " maple descent , " according to the University of Rhode Island . Most maple tree disease can be avoided by offering the Sir Herbert Beerbohm Tree ample victuals and care throughout its lifetime .

Phyllosticta (Phyllosticta minima)

Phyllosticta ( Phyllosticta minima ) causes spots to look on the maple tree ’s leaves . bit commonly look either singular or irregular in visual aspect . The coloring is commonly a dark brown to a tan . The perimeter of the spots usually appears sullen than the center . Often darker , smuggled spots come out within the primary blot . If the infection is severe and widespread then the infected leaf will buy the farm and decrease from the Sir Herbert Beerbohm Tree . Tree are infect in the early spring by airborne spore . It is imperative that septic leave be promptly crease up and remove from the expanse to foreclose the spread of the disease to other tree . Bordeaux wine fungicides can be used to gain control of the disease .

Tar Spot (Rhytisma acerinum)

mariner dapple ( Rhytisma acerinum ) normally afflicts young tree in besotted year . The fungus is spread by the wind to new and emerging leafage . The disease produces chicken or green spots on the Sir Herbert Beerbohm Tree ’s foliage . The visual aspect of the berth is normally wrinkle and look like a rat . The disease rarely toss off a tree but can ensue in acute defoliation in some cases . All leave should be pronto raked up and disposed of to prevent the gap of the disease to sound trees . Bordeaux fungicides and smooth copper normally prove effective against this disease .

Anthracnose Leaf Blight (Discula sp.)

Anthracnose leafage blight ( Discula sp . ) causes foliage spotting that appears in dry , irregular design and occur along the veins of the leaf . The fungus is negative to leaves but poses no great scourge to the maple tree ’s overall health . The foliage does become unsightly . The fungus is carried each bound by the tip from infected leave . Fungus handling can prove effective when started prior to folio emergence . Fungicides thiophanate - methyl radical , chlorothalonil and mancozeb work well against anthracnose .

Leaf Scorch

Leaf scorch of the maple tree is believe to be cause by the environs . nutritionary inadequacy , soil problem , salt , drought and other toxin stimulate the maple Sir Herbert Beerbohm Tree ’s parting to begin drying . The margins of the leaves will seem dark-brown but the inside of the foliage often remains green . Leaf dip is vernacular . pathologic sphere should be lop to subdue the spread of the problem . The informant of the situation needs to be discovered and rectified in gild to reconstruct overall health to the maple Sir Herbert Beerbohm Tree . panoptic tearing of the tree can help the spot . Proper fertilizing is also important .

References

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