How to treat the infection

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Cure red pustular disease with pruning shears - this is how it works

The unmistakable damage pattern leaves no doubt that a maple is infected with red pustule disease. Are mostly affected by improper Cut back or care-bug weakened species, such as sycamore maple and norway maple. Fungicides are ineffective. The fight is more straightforward than expected. Typical symptoms and the correct procedure can be read here:

  • First signs in spring and summer: withered leaves and sagging shoot tips, brownish discolored bark
  • Unmistakable symptom: vermilion, tiny, round fruiting bodies on branches and trunk
  • Control: cutting back into healthy wood

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The best time for the healing cut is a dry, overcast day in September. It is important to note that you remove all clippings from the garden. Otherwise, the insidious fungal spores will look for another victim.

Fight against tar spots - goodbye to black spots

The fungus Rhytisma acerinum causes one of the most common damage patterns Maple species emerged. In the rainy spring, the spores attack the lush green foliage and initially cause yellowish discoloration. In the further course, black, shiny, slightly raised spots with a yellow halo form, from which the disease owes its name.

Successful control takes advantage of a strategic mistake made by fungal pathogens. The next generation of infectious spores do not develop until spring on the fallen leaves of the previous year. Affected gardeners consequently break the development cycle by removing all leaves in autumn.

Powdery mildew mushrooms capitulate to fresh milk - this is how it works

In the triumvirate, the most common cause of fungal attack on the maple, may mildew not missing. Mealy white fungal lawn on the beautiful leaves is the classic symptom. In the early stages of the infection, you can fight the infection with fresh milk. Add 125 milliliters of fresh milk to 1 liter of water and spray all the maple leaves on the top and bottom until no white ones Toppings occur more.

Tips

Unfortunately, not all fungal diseases on maples can be combated simply and without chemicals. The Verticillium wilt can be identified by the leaves and shoots that are dying in places within the Treetop. In the very early stage of infestation on young maples, an immediate Transplanting maybe save the tree. In most cases you cannot avoid clearing.