Yellow Leaves on My Mimosa Tree

Written by hayley smith
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Yellow Leaves on My Mimosa Tree
Mimosa trees have bipinnate leaves. (Jupiterimages/ Images)

The mimosa tree (Albizia julibrissin) is a fast-growing shrub or tree that occurs regularly in the wild and is a popular garden plant. Mimosa vascular wilt is the most serious mimosa tree disease, according to New Mexico State University's College of Agriculture.

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Symptoms of mimosis vascular wilt include yellowing and wilting leaves and leaf drop. Seriously infected trees start to secrete a sticky brown substance to try to block the infection from climbing up the tree.


The disease caused by the fungus Fusarium oxysporum attacks the roots and then works its way up the tree. The fungus thrives on the tree's inner flesh and sends spores through the mimosa's vascular system to infect the rest of the tree.


According to NMSU's College of Agriculture, most infected mimosa trees die within a year of first showing symptoms. There is no chemical cure for mimosa vascular wilt. To prevent this disease, plant mimosa cultivars that are designed to resist it. Consult your local nursery for disease-resistant cultivars.

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