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| Classification |
Black Walnut |
| Height: |
10 - 20 m |
| Leaf: |
alternate, pinnate |
| Bloom: |
May, inconspicuous |
| Fruit: |
stone-fruit (nut), green fruit
shell |
| Branches: |
olive, thick |
| Bark: |
gray, smooth, later covered in bark and black |
| Root: |
deep roots |
| Location: |
sun to half-shade |
| Soil: |
sandy-loamy to clayey |
| ph-value: |
slightly acidic to basic |
| Diseases: |
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Black Walnut |
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| Leaf spot illness (Marssonina juglandis) |
| first small brown spots in the middle, light then
more extensive. Black discoloration on the green nuts. Action: Leaf
disposal in the fall. |
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| Gallmite (Aceria erinea) |
| Changes in the leaf are caused by mites. This is
not dangerous for the tree. |
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| Gallmite (Aceria tristriata) |
| Changes in the leaf are caused by mites. This is
not dangerous for the tree. |
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| Fungi |
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