Verticicladiella (Oak Decline Complex)
Verticicladiella sp.
A complex of fungi that causes oak decline throughout the continental United States. Predisposed by drought stress, root damage from construction or transplanting, and soil compaction. Can kill trees in 2-3 months or cause gradual death over 3-8 years.
Identification & Symptoms
What to Look For
Potential Damage
Lifecycle
Lethal infection generally through roots from soilborne phaseSome fungi may establish as twig-canker incitersFalling branches and twigs introduce fungus to root areaComplex interactions between multiple fungal speciesPredisposed by drought and mechanical root damage
Professional Treatment Approach
Maintain adequate soil moisture during drought
Avoid root damage from construction activities
Improve soil compaction around affected trees
Fungicide treatments for high-value trees
Remove and destroy infected material
Plant resistant oak species in problem areas
Recommended Mauget Products
Arborfos
Professional-grade treatment specifically effective against verticicladiella (oak decline complex).
View Product DetailsFungisol
Professional-grade treatment specifically effective against verticicladiella (oak decline complex).
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