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If the Japanese Maple is in an unfavorable location, it is more likely to be attacked by the Verticillium wilt
Japanese maple threatened by diseases such as Verticillium wilt
Whether Japanese fan maple, golden maple or Japanese maple - the numerous species and varieties of Japanese maple are found in many gardens. Basically, the exotic woody is quite robust against diseases and pest infestation, only against the dreaded and dangerous Verticillium wilt it is not immune. Instead, the Japanese maple, like all maples, is considered to be particularly susceptible to this fungal plant disease.
symptoms
The Verticillium wilt is caused by fungi of the genus Verticillium, which live mostly in the soil and also penetrate from there into the plant. A possible infestation can be recognized by the following symptoms:
When diagnosing, however, it should be noted that some symptoms may have a different cause. Sleepy, dry leaves may also be an indication of lack of water or, on the contrary, waterlogging. Before you take drastic measures, the focus is first of all on finding the exact cause.
fight
Unfortunately, it is not possible to successfully treat the fungus with a fungicide, also various home remedies are not helpful. The only way to combat it should be as early as possible and at the very first sign - however, the infested Japanese Maple can only seldom be saved.
Above all, make sure not to use any plant susceptible to the Verticillium wilt, as the pathogen remains in the soil. Before a new planting the soil should necessarily be replaced.
prevention
You can only prevent infection with the Verticillium fungus by carefully selecting the location, for example by not planting susceptible plant species (such as the Japanese maple) where the pathogen has already appeared. Incidentally, this also applies to a new planting after a soil replacement, even then as resistant as possible woody plants should be selected.
Tips
Resistant to Verticillium wilting are pears, walnuts, oaks and willows. Even conifers are considered relatively insensitive.