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Difference between revisions of "Tree health troubleshooting guidelines"

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<font size=3>'''Tree health troubleshooting guidelines (adapted from Johnson et al., 2008)'''.</font size><br>
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<font size=3>'''Tree health troubleshooting guidelines (adapted from [https://www.fs.usda.gov/Internet/FSE_DOCUMENTS/stelprdb5368392.pdf Johnson et al.], 2008)'''.</font size><br>
 
Link to this [[Tree health troubleshooting guidelines|table]]<br>
 
Link to this [[Tree health troubleshooting guidelines|table]]<br>
  
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</tr>
 
</tr>
 
<tr>
 
<tr>
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<td colspan=3><center>TRUNK</center></td>
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<td colspan=3><center>'''TRUNK'''</center></td>
 
</tr>
 
</tr>
 
<tr>
 
<tr>
−
<td></td>
+
<td>A flat-sided trunk at the base of the tree</td>
−
<td></td>
+
<td>Encircling root restriciting the flow of water and nutrients between the roots and rest of the tree</td>
−
<td></td>
+
<td>Excavate to check for encircling root</td>
 +
</tr>
 +
<tr>
 +
<td>Bark damage near the bottom of the tree</td>
 +
<td>Rodent or string trimmer</td>
 +
<td>Apply mulch/trunk guard to protect from further damage</td>
 +
</tr>
 +
<tr>
 +
<td>An elm tree with liquid oozing from the trunk</td>
 +
<td>Slime flux or wetwood</td>
 +
<td>Not worry about health</td>
 +
</tr>
 +
<tr>
 +
<td colspan=3><center>'''BRANCHES'''</center></td>
 +
</tr>
 +
<tr>
 +
<td>An elm tree with bright yellow leaves on one or two branches</td>
 +
<td>Dutch elm disease</td>
 +
<td>Immediately call the university* or an arborist</td>
 +
</tr>
 +
<tr>
 +
<td>Webs in the branches or webs covering the tips of branches</td>
 +
<td>Fall webworm or Eastern tent caterpillar</td>
 +
<td>Not worry about health</td>
 +
</tr>
 +
<tr><td>Many branch tips snipped off and laying on the ground</td>
 +
<td>Squirrel damage</td>
 +
<td>Not worry about health</td>
 +
</tr>
 +
<tr>
 +
<td>Black clumps on branches of a cherry tree</td>
 +
<td>Black knot</td>
 +
<td>Call for advice*</td>
 +
</tr>
 +
<tr>
 +
<td>Very little growth</td>
 +
<td>Many</td>
 +
<td>Call for advice*</td>
 +
</tr>
 +
<tr>
 +
<td>Hole in trunk or branches</td>
 +
<td>Many</td>
 +
<td>Call for advice*</td>
 +
</tr>
 +
<tr>
 +
<td colspan=3><center>'''LEAVES'''</center></td>
 +
</tr>
 +
<tr>
 +
<td>Leaves sticky and covered with a black velvety coating (like soot)</td>
 +
<td>Piercing, sucking insect and sooty mold</td>
 +
<td>Hose down leaves to get rid of sap</td>
 +
</tr>
 +
<tr>
 +
<td>Leaves wilted</td>
 +
<td>Many</td>
 +
<td>Call for advice*</td>
 +
</tr>
 +
 
 +
<tr>
 +
<td>Spots on leaves</td>
 +
<td>Many</td>
 +
<td>Call for advice*</td>
 +
</tr>
 +
 
 +
<tr>
 +
<td>Small leaves</td>
 +
<td>Many</td>
 +
<td>Call for advice*</td>
 +
</tr>
 +
 
 +
<tr>
 +
<td>Sparse leaves</td>
 +
<td>Many</td>
 +
<td>Call for advice*</td>
 +
</tr>
 +
<tr>
 +
<td>Yellow or brown leaves</td>
 +
<td>Many</td>
 +
<td>Call for advice*</td>
 +
</tr>
 +
<tr>
 +
<td>Holes in leaves</td>
 +
<td>Insect feeding</td>
 +
<td>Not worry about health</td>
 +
</tr>
 +
<tr>
 +
<td>Bumps on leaves</td>
 +
<td>Many</td>
 +
<td>Not worry about health</td>
 +
</tr>
 +
<tr colspan=3>
 +
<td><font size=2>*Call an arborist or other qualified professional</font size></td>
 
</tr>
 
</tr>
 
</table>
 
</table>
  
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<noinclude>[[category:table]]</noinclude>
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<noinclude>
 +
[[Category:Level 3 - General information, reference, tables, images, and archives/Tables/Trees, tree trench, tree box]]
 +
[[Category:Level 3 - General information, reference, tables, images, and archives/Tables/Operation and maintenance]]
 +
[[Category:Level 3 - General information, reference, tables, images, and archives/Tables/Plants, vegetation]]
 +
</noinclude>

Latest revision as of 16:50, 7 August 2022

Tree health troubleshooting guidelines (adapted from Johnson et al., 2008).
Link to this table

If you see: Potential cause: You should:
TRUNK
A flat-sided trunk at the base of the tree Encircling root restriciting the flow of water and nutrients between the roots and rest of the tree Excavate to check for encircling root
Bark damage near the bottom of the tree Rodent or string trimmer Apply mulch/trunk guard to protect from further damage
An elm tree with liquid oozing from the trunk Slime flux or wetwood Not worry about health
BRANCHES
An elm tree with bright yellow leaves on one or two branches Dutch elm disease Immediately call the university* or an arborist
Webs in the branches or webs covering the tips of branches Fall webworm or Eastern tent caterpillar Not worry about health
Many branch tips snipped off and laying on the ground Squirrel damage Not worry about health
Black clumps on branches of a cherry tree Black knot Call for advice*
Very little growth Many Call for advice*
Hole in trunk or branches Many Call for advice*
LEAVES
Leaves sticky and covered with a black velvety coating (like soot) Piercing, sucking insect and sooty mold Hose down leaves to get rid of sap
Leaves wilted Many Call for advice*
Spots on leaves Many Call for advice*
Small leaves Many Call for advice*
Sparse leaves Many Call for advice*
Yellow or brown leaves Many Call for advice*
Holes in leaves Insect feeding Not worry about health
Bumps on leaves Many Not worry about health
*Call an arborist or other qualified professional
Retrieved from "https://stormwater.pca.state.mn.us/index.php?title=Tree_health_troubleshooting_guidelines&oldid=60971"

This page was last edited on 7 August 2022, at 16:50.