Difference between revisions of "Tree health troubleshooting guidelines"
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<td>Call for advice*</td> | <td>Call for advice*</td> | ||
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<td>Yellow or brown leaves</td> | <td>Yellow or brown leaves</td> | ||
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<td>Holes in leaves</td> | <td>Holes in leaves</td> | ||
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<td>Bumps on leaves</td> | <td>Bumps on leaves</td> | ||
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<font size=2>* Call an arborist or other qualified professional</font size> | <font size=2>* Call an arborist or other qualified professional</font size> | ||
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Revision as of 15:54, 15 July 2015
Tree health troubleshooting guidelines (adapted from Johnson et al., 2008).
Link to this table
| If you see: | Potential cause: | You should: |
|---|---|---|
| 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 |
| 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 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