Botryodiplodia and Oak Decline Complex
Multiple fungi including Botryodiplodia querci, Fusarium solani, Cephalosporium diospyri, Pestalotia macrosporum, Diplodia quercina, Phialophora sp., Dothiorella querci, Verticicladiella sp., Fusarium oxysporum, Verticillium albo-atrum
A complex of fungal pathogens causing oak decline, often following drought stress and root damage. The disease can cause rapid death in 2-3 months or gradual decline over 3-8 years. Infection typically occurs through roots from soil-borne phases of the fungi.

Identification & Symptoms
What to Look For
Potential Damage
Lifecycle
Lethal infection generally occurs through roots from soil-borne phases of fungi. Some fungi (Botryodiplodia, Diplodia) may establish as twig-canker initiators causing slower decline. Falling branches and twigs may introduce fungus to root area, creating new infection sites.
Professional Treatment Approach
Improve soil drainage and reduce compaction
Provide supplemental watering during drought
Avoid root damage during construction
Remove infected branches promptly
Fungicide injection may help in early stages
Maintain tree health through proper care
Recommended Mauget Products
Fungisol
Professional-grade treatment specifically effective against botryodiplodia and oak decline complex.
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Professional-grade treatment specifically effective against botryodiplodia and oak decline complex.
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