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San Jose Scale
Plant disease guide · TerraceFarming
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Is this what's affecting your plant?
Upload a photo for an AI diagnosis — confirms San Jose Scale vs. look-alike problems and suggests the right treatment.
What causes San Jose Scale?
Tiny insects sucking sap from bark, appearing as grey ash.
How to treat San Jose Scale
Spray Tree Spray Oil (TSO) during dormancy.
How to prevent San Jose Scale
Winter pruning and scraping of old bark.
Crops commonly affected
Related questions
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