Aphids — how to identify and get rid of them without chemicals

Aphids — quick diagnosis and effective chemical-free control

Small, soft, green or black. They feed in colonies on young shoots, deform leaves and transmit viruses. Aphids can destroy seedlings within a week.

How to identify:

• Clusters of small insects on shoot tips and undersides of leaves
• Curled, sticky or deformed young leaves
• Sticky honeydew on leaves and stems (aphid excretions)
• Ants running on the plant — they farm aphids for this honeydew

  Natural control methods:

  1. Soapy water (cheapest and fastest)
  Dissolve a tablespoon of gray soap or dish soap in a liter of water. Spray thoroughly, especially leaf undersides. Repeat every 3–4 days for 2 weeks. Soap destroys the aphid's waxy coating.

  2. Nettle extract
  Pour water over fresh nettles (1:10), soak for 24 hours. Dilute 1:5 and spray plants. Deters aphids and strengthens plants.

  3. Natural enemies
  Ladybugs, lacewings, hoverfly larvae — one adult ladybug eats 50–100 aphids daily. Planting dill, fennel and flowering herbs attracts predators.

  4. Strong water stream
  Washes aphids off mechanically. Simple and effective with moderate infestations.

  Prevention:
  Avoid nitrogen over-fertilization — it causes lush, soft growth that aphids love.

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