Garden Plant diseases symptoms and remedies.
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Page 13
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Tarsonemid mites
(leaves distorted)
Plants affected:
Begonias,dahlias,fuchias,gerberas,pot cyclamens,ferns and other greenhouse plants.
Symptoms:
Leaves distorted in severe infestations, or slightly curled at edges: slightly thickened and brittle.
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Treatment:
Apply sulphur dust.
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Leaf rolling rose sawflies
(leaves distorted)
Plants affected:
Bush and climbing roses.
Symptoms:
Leaves tightly rolled down along their whole length.
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Treatment:
Remove and burn affected leaves in May and early June if possible, or spray with trichlorphon,BHC or a systemic insecticide at fortnightly intervals in May.
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Lilac leaf miners
(leaves distorted)
Plants affected: Lilacs and privet.
Symptoms: Tissues of leaves almost completely eaten away; leaves distorted and rolled.
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Treatment: Pick off and burn affected leaves and spray with BHC in May. Repeat if necessary.
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Phlox eelworms
(leaves distorted)
Plants affected: Perennial phlox.
Symptoms: Young leaves unisually narrow and die off prematurely.
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Treatment: Remove and burn severely affected plants. Clean stocks may be raised by taking root cuttings, but do not replant in infected soil.
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