What is causing the silver patches on the leaves of my Pyracantha?
Our Advice
This is leaf miner, a small grub which tunnels inside the leaf and causes the outer skin to separate and form an air pocket, giving the leaf a silver appearance. Spray the plants from May to June and again in August to September with Resolva Bug Killer from Westland or Sprayday Bayer Greenfly Killer'>Greenfly Killer from SBM Life Science.
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