The American elm tree tree is a big growing wraith tree previously used along urban center street and in house landscapes . In the former 1900s , Dutch elm tree disease caused a devastation of the tree throughout North America , arrive at it no longer a viable landscape selection . American elm tree tree are native to the United States and brave in USDA growing zones 2 through 9 .

Characteristics

The American elm is a tall growing , deciduous tree that make a height up to 100 feet with a spread of 70 feet . The branches get off the trunk of the Sir Herbert Beerbohm Tree in tall arches to imprint a vase - like crown with many branches . American elm trees create dark green one-sided leaves that turn Au , clear green or brown in the fall .

Planting Requirements

American elmwood tree develop well in a neutral pH soil that is nutrient rich and well - draining . Sandy loam or clay loam soils work well for the tree . The location should receive full sunlight to fond shade and good melodic line circulation as the tree is susceptible to fungal disease . Test the grime at plant time to verify it is 6.8 to 7.2 pH. Work ground rock sulphur into the dirt to lower the pH or limestone to increase the pH act .

Care

The American elm is a magniloquent tree with a long ancestor organization that expands past the drip line . supplementary water applications benefit the tree diagram during full point of drought . Provide water by soaking the ground just past the bakshish of the gloomy branches to a depth of at least 10 inches . Prune elm trees once every three age during the inactive season . get rid of bushed , discredited and cross branch . Always disinfect pruning tools with isopropyl alcohol prior to using on elm Sir Herbert Beerbohm Tree to prevent the introduction or spread of Dutch elm tree disease .

Dutch Elm Disease

Dutch elm tree disease is a fungus that spreads by elmwood bark beetle . The fungus infect the H2O acquit vessels and tissue , which get wilted and curled leave-taking on one or more upper subdivision . The leaves eventually turn yellow and the entire arm dies . Dutch elmwood disease destroyed many American elmwood trees in the mid to former 1900s , making it no longer a desirable landscape specimen . Infected trees require straightaway remotion to forestall spreading the disease to other elm trees .

Problems

American elm tree tree diagram are susceptible to many fungus and bacterial diseases such as Phloem gangrene , root guff and canker sore . Phloem sphacelus is a virus that set on the bast tissue paper and prevents nutrient flow in the tree . Symptoms of Phloem necrosis are loose barque , wilted leaves and leaf personnel casualty . Root rot is a fungus that multiplies and enters the root scheme when the land remains saturated for a tenacious period . The fungus close up pee and nutrient flow to make wilted leave and branches and eventually death . Canker is a fungus that creates a large , wart - like growth at the theme of the trunk and/or branches . The disease geld off alimental flow through the tree and make death . There is no treatment for these disease . Infected trees want removing and disposing of the Sir Henry Wood .

References

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