How to eliminate spider mite on geraniums? - briefly
Apply a thorough spray of water to dislodge the mites, then treat the plants with insecticidal soap or neem oil, repeating every 5–7 days until none are visible. Remove heavily infested foliage and maintain higher humidity to prevent re‑infestation.
How to eliminate spider mite on geraniums? - in detail
Spider mites are tiny arachnids that feed on geranium foliage, causing stippling, yellowing, and leaf drop. Early detection and swift action are essential to prevent severe damage.
Identify the pest by inspecting the undersides of leaves for fine webbing and speckled discoloration. Use a magnifying lens to confirm the presence of moving mites.
Control measures fall into three categories: cultural, mechanical, and chemical.
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Cultural practices
- Keep plants well‑watered but avoid over‑watering; stressed foliage attracts mites.
- Provide adequate air circulation by spacing plants and pruning dense growth.
- Remove heavily infested leaves and dispose of them away from the garden.
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Mechanical methods
- Spray leaves with a strong jet of water to dislodge mites; repeat every 2–3 days until populations drop.
- Apply insecticidal soap or neem oil, covering both leaf surfaces. Follow label instructions for concentration and re‑application intervals (typically 7–10 days).
- Introduce predatory insects such as Phytoseiulus persimilis or Amblyseius swirskii, which consume spider mites and reproduce on the plant.
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Chemical options
- Use miticides containing abamectin, spirodiclofen, or bifenthrin for severe outbreaks. Rotate products with different modes of action to delay resistance.
- Observe pre‑harvest intervals and safety precautions; wear protective gloves and avoid drift onto edible crops.
Monitor the garden weekly after treatment. If mite numbers rebound, increase the frequency of water sprays and consider a second application of neem oil or a different miticide. Maintaining healthy plants through proper fertilization (balanced N‑P‑K) and regular pruning reduces the likelihood of future infestations.