When the maple leaves become covered in mildew, it quickly becomes alarming. But how dangerous can the fungus actually be to the maple tree? Here you can find out what risk mildew poses and when you should intervene.
Is mildew on maple trees dangerous?
Mildew can be dangerous to maple trees by causing deformation of the leaves, leaf drop and loss of growth. In extreme cases, entire shoots can die. To combat the infestation, infected plant parts should be removed and the maple tree should be sprayed with a milk-water mixture.
How dangerous is powdery mildew for maple trees?
If you do not help an infected mildew, the leaves will deform,leaf dropand in some cases evenloss in growth In dangerous If felled, entire maple shoots can die. On young trees, powdery mildew can pose a threat to natural growth. Above all, the maple typically loses its leaves. If the foliage infected with the fungus is left under the maple, the fungus can spread or even infect the tree again the next year.
How do I recognize powdery mildew on maple trees?
You can recognize a powdery mildew infestation by awhite-gray coating on the leaves of the maple tree. Visually, this mushroom lawn is reminiscent of flour. This is where the name of the mushroom comes from. The mildew fungus causes such noticeable changes with its spores that you can quickly recognize an infestation. With this countermeasure you can prevent the mildew from becoming really dangerous to the affected maple:
- Consistently cut off infected plant parts.
- Mix 1 liter of water, 125 ml fresh milk and a little dish soap.
- Fill into spray bottle
- Spray maple with mixture.
Is powdery mildew on maple trees dangerous for people?
Mildew isnot poisonous, but you should still treat affected parts of the plant with caution. Herbs or vegetables that are covered in mildew should be washed before consumption. Since you probably rarely harvest anything from maple for your kitchen, this problem usually doesn't arise.
Does powdery mildew quickly become dangerous for nearby plants?
Mildew spreads viaair currents and quickly becomes dangerous for plants in the surrounding area. If you don't want nearby roses or vegetables such as cucumbers and zucchini to fall victim to mildew, you should combat the fungal disease early.
When does powdery mildew become dangerous for maples?
Mildew spreads whenwarm temperaturesof more than 20 °C come together withhigh humidity. The disease is therefore also known as fair-weather fungus and occurs seasonally in summer.
Which maple varieties often have problems with mildew?
EspeciallyNorway mapleandSycamore maple are often affected by powdery mildew. In principle, however, this fungal infection occurs on all maple varieties. Choosing a location without excessive humidity can also have a preventive effect against mildew.
Tip
Milk-water mixture has a preventative effect
In warm, humid climates, you can also spray the maple with the mixture of milk and water as a preventive measure. The home remedy leaves no harmful residue in your garden.
