Elm trees are very fragile when it comes to pruning . Once an elm is pruned it is left helpless to prevent pests ( such as elm barque beetles ) and disease ( such as Dutch elm disease ) from attacking and spreading into its delicate Mrs. Henry Wood . Help your elm tree avoid pest and disease by using proper pruning proficiency .
Timing
Elm trees appeal a bug known as the elm bark mallet from mid - April through late - July . As a effect , rationalize an elm tree diagram during these calendar month is monish – and many states have ordinances against it . Elms should also never be pruned in the spill due to their susceptibility to fungi . The idealistic time of twelvemonth for lop an elm tree diagram is early outflow . This allow the tree plenty of fourth dimension to recover .
Technique
obviate excessive trauma to the tree diagram by always cutting near the branch collar . The branch collar is place near where the limb is attached to the proboscis or main limb . To cut off the branch , make a small undercut 1 in away from the collar . Next , flawlessly cut the offset from the top . eventually , cleanly reduce the offset the ease of the way just alfresco of the ramification collar . Never top veer an elm tree , as it can lead to blister , infestations and lower property value .
Wound Care
If you must cut the branches during the summertime or declension , wound care is vital for the overall protection of the tree . After removing the limb , paint the injury with a fungicide to avoid the tree contracting any fungus while the wound mend . Next , paint the tree with a mixture of half latex paint and half weewee to protect the injury of blister . ultimately , clear away any brush from under the Sir Herbert Beerbohm Tree to forestall winter bug from climbing the Sir Herbert Beerbohm Tree and damage it .
Kills Elm Trees?
were once an everyday sight along sidewalk and roadways in North America , The most common wasUlmus americana , also known as the American or white elm . The arrival of a virulent strain of Dutch elm tree disease ( DED ) in New England in the early 1900s had a withering effect on the elm population . Fortunately , it is not as virulent or far-flung as DED , which is a fungus spread by elm bark beetle . When infect with the fungus that causes DED , the tree diagram responds by secreting Department of Defense compounds that gather up in the sapwood just under the barque . The branches must then be burned or otherwise disposed of . chemic intervention consist chiefly of injecting a antifungal agent into the lower trunk of an touched tree . This treatment is most effective after a good pelting or a cryptical lachrymation . elmwood yellowness is a systemic disease that affects the whole tree , and while an infected Sir Herbert Beerbohm Tree may survive for two or three years , it will step by step wilt and die . At first , the yellowing may impress only a undivided branch , and if you undress back the bark , you may find discoloration that resembles the staining because of the DED fungus . They include smooth - leafed elm ( U. carpinifolia ) , Scotch elm ( U. glabra ) , European lily-white elm ( U. laevis ) , Formosan elm ( U. parvifolia ) and Siberian elm ( U. pumila ) . Spot Anthracnosecan affect the leave-taking or the tree diagram ’s vascular organisation , causing light brownish spot and wilting on leaves and offshoot . The fungus overwinters in the barque of the Sir Herbert Beerbohm Tree and can be hold by cauterise dead leaves and spraying the tree with a antimycotic agent . Leaf scorch _ can be due to excessive sunlight or fertilizer , but when it appear on elm trees , it is ordinarily the employment of the bacteriumXylella fastidiosa , which is carried by leafhoppers and spittle microbe .
References
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