| A Quick Note: |
| Armillaria mellea, known as Oak root fungus, Shoestring Fungus, and Honey Mushroom, is present throughout the western states. Often it is found infecting our native oaks. It causes little or no damage to the plant until the tree becomes stressed from drought, over watering, insect damage, or physical damage. This capitalistic fungus takes advantage of the lowered defenses of the tree and can cause a quick death. To prevent this fungus from attacking your garden, we discourage changing your gardening practices under any oak. If your oak has been gardened under for years, continue that practice. If your oak has barren soil under it, leave it that way or use plants from the list below that require minimal amounts of water. Below is a list of plants that are highly resistant, moderately resistant, and susceptible to this fungus. Use this list when working in affected gardens. |
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Highly Resistant
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Buxus |
Cupressus arizonica |
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Susceptible Acacia floribunda |
Euphorbia |