Treat apple tree diseases with biological agents

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You can see it from afar when the trees are infected with apple tree diseases. Urgent treatment with biological agents is necessary and can be the salvation.

Trees can get sick.
Trees can get sick.

What you need:

  • Nettle brew
  • Nasturtiums
  • compost
  • Sun

Scab and powdery mildew are among the apple tree diseases

  • The most common apple tree diseases include scab and mildew. The mushrooms spread on leaves, fruits and shoots in damp summers.
  • You can recognize the scab by the olive green to dark brown spots. The leaves deform noticeably and finally fall from the branches. You will discover dark, cracked spots on the fruits, into which putrefactive germs like to penetrate.
  • The powdery mildew first becomes noticeable through a whitish layer on individual parts of the plant and especially covers the soft parts more and more. The tree can perish.

Strong defenses and biological treatment

  • The spread of parasites is mostly due to weak defenses. Biological treatment should be carried out before the buds begin to sprout. The harmful pathogens can even hibernate as a fungal network and infect the plant again and again.
  • The parts that have already been infected by apple tree diseases must be removed, collected and destroyed as quickly as possible - but not on the compost. It is best to check the buds and shoot tips in winter and cut them back into the healthy wood if they are infected.
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  • Plant garlic and nasturtiums on the tree trunk. Burying zinc residues should also help. Spray the tree with a boiled brew of water (10L) filled with nasturtiums that has grown for 10 minutes.

Prevent apple tree diseases

  • If the fruit tree is to stay healthy, it needs sun and air. If there is too much shade and moisture, it does not dry well and a breeding ground for apple tree diseases is created.
  • In addition, a healthy plant needs a diverse and lively environment. This keeps the ecological balance and promotes the settlement of beneficial insects.
  • Clear away windfalls or mash them up to prevent diseases and pests from spreading. Disused trees are to be removed.
  • For the strengthening of the immune system can be appropriate fertilizer or spreading compost around the base of the tree will help. Every now and then a brew, mixed with water and nettle plants, is a good aid.

For a new planting, it is best to choose varieties that are insensitive to apple tree diseases.

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