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Lilly Pilly Problems & FAQ: Troubleshooting Common Issues

Solve lilly pilly problems: psyllid, myrtle rust, yellowing leaves, root issues. FAQs answered for Australian gardeners.

Disclaimer: General gardening information only. This site does not provide professional horticultural or pest control advice.

Common Problems

Quick reference for the most frequently seen issues

Leaves Yellowing

  • Nutrient deficiency (often nitrogen or iron)
  • Poor drainage or "wet feet"
  • Heat or water stress

What to do: Check soil moisture, improve drainage if needed, and apply a balanced slow-release fertiliser in spring. Avoid overwatering.

Psyllid (Pimples)

  • Small insect causing bubbly bumps on new leaves
  • Most active in spring–summer
  • Can stunt new growth

What to do: Promptly remove and dispose of affected growth. Encourage beneficial insects. For severe infestations, consider horticultural oil or appropriate pest control, following label instructions.

Myrtle Rust

  • Fungal disease showing yellow-orange pustules
  • Spreads in warm, humid conditions
  • Affects new growth

What to do: Remove affected material and dispose of it (don't compost). Avoid overhead watering. Improve airflow around plants. Note: Notify local authorities if required in your area.

This is general guidance only. Check with your local nursery or agriculture department for region-specific advice.

Root Rot

  • Waterlogged soil
  • Poor drainage
  • Overwatering
  • Fungal infection

What to do: Improve drainage immediately. Reduce watering. In severe cases, the plant may not recover. Prevention is better than cure.

Sooty Mold

  • Black coating on leaves
  • Indicates sap-sucking insects (scale, aphids)
  • Reduced photosynthesis

What to do: Treat the underlying insect problem. Wash off mould with water. Improve airflow and encourage beneficial insects.

Leaf Drop

  • Water stress
  • Transplant shock
  • Sudden temperature changes
  • Nutrient imbalance

What to do: Check watering schedule. Protect from extreme conditions. Allow time for establishment if recently planted.

Frequently Asked Questions

Quick answers to common lilly pilly questions

Yes, lilly pilly fruit is edible. The magenta to purple berries can be eaten fresh, used in jams, chutneys, or sauces. Flavour varies between varieties — some are sweet and tart, others more bland. Wash before eating.