The pee oak tree grow quickly – up to 25 fundament in 10 twelvemonth , and ultimately up to 60 feet tall and 60 feet wide – but does not hold out beyond 50 long time due to shallow radical system , low decay resistance and susceptibility to injury from hint , snow and ice . Water oak tree are hardy in USDA Hardiness Zones 6 to 10 and have scandalmongering fall color . This tree produce abundant acorns that lean to sully asphalt and concrete .

Oak Wilt

The fungus , Certocystis fagacearum , causes oak wilt . This disease affects all oaks . The major symptom of oak wilt is the death of the folio veins . These veins turn brown as they die while the rest of the folio might not vary in coloring material , or may turn yellow . The leafage devolve off the tree , even though they are green . This process starts on one branch and pass around to the rest of the tree diagram . beetle that flow on sap and radical grafts go around the disease .

The only room to control this disease is to destroy the tree as soon as possible and remove or cauterize the ambo . A ditch must be dug around the taint tree to prevent the spread of the disease . Vapam , a chemical discussion , can be applied to the ditch very carefully . For this reason , the presence of the disease should be confirmed professionally before treatment proceeds .

Canker Diseases

Several kingdom Fungi cause pestilence diseases , such as Irpex mollis , Polyporus hispidus and Poria spiculosa . Cankers are circular with indentation in the center . These form after limbs settle off . This disease can be assure by remove dead limb and preventing Sir Herbert Beerbohm Tree injuries , as they become site for contagion . In the case of hypoxylon canker , the Hypoxylon fungus causes subdivision to die . The foliage turns yellow and the disease moves from branch to branch until the Sir Herbert Beerbohm Tree dies . This usually takes a class or more .

Near the clock time of tree dying , the outer bark falls off to expose the fungus spores , which vanish and are replaced by structures which discharge spores away from the tree diagram . Infection of other trees fall out when these spores blow onto hurt website of surrounding trees . Tree accent chip in to this disease , as does excess fill soil when planting the tree . accidental injury shunning and right maintenance of the tree control the spread of the disease .

Oak Decline

The fungus Cephalosporium diospyri causes a disease know as oak tree decline . This fungus causes the tree to cut at the top because the twigs pall back . Each twelvemonth this condition aggravate until the large limbs begin to die . This mental process can take up to 10 yr to come on some oak species . rootle grafting and barque beetles have the spread of this disease . Reducing stress on the Sir Herbert Beerbohm Tree will slack the spread of the disease . right fertilization and watering and removal of numb limbs must also be done . Wood from septic areas should not be transported to clean areas .

References

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