Leaves
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Black spots
Delphinium black blotch
Hellebore black death
Hellebore leaf spot
Holly leaf blight
Pyracantha scab
Rose black spot
Brown/Yellow/White spots
General
Bacterial canker
Oedema
Phytophthora ramorum
Powdery mildews
Thrips
Specific plants
Antirrhinum rust and other problems
Brassica white blister
Broad bean leaf diseases
Canna viruses
Chrysanthemum white rust
Daffodil viruses
Fuchsia rust
Glasshouse leafhopper
Glasshouse red spider mite
Green spruce aphid
Holly leaf miner
Horse chestnut leaf-mining moth/leaf blotch
Impatiens necrotic spot virus; also attacks Begonia, Cyclamen, Fuchsia
Leek rust
Lettuce downy mildew
Mint rust
Oak - holm oak leaf-ming moth
Onion white rot
Pear rust
Pelargonium viruses
Photinia leaf spot
Primula leaf spot
Raspberry leaf and bud mite
Rose rust
Sage leafhopper; also attacks lavender, mint, oregano, rosemary, basil and thyme
Sweet pea viruses
Tomato viruses
Tulip viruses
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