Oregano
Symptom Cause  
Leaves wrinkled or curled; discolored, stunted, tend to fall off
Aphids
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Rotting of older leaves
Botrytis
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Tip of leaves brown, internal larvae trails visible. Leaves skeletonized and rolled up.
Leaf Miners
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Gradual wilting of plants
Rhizoctonia
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Leaves stippled/yellow/bronze; dry out/drop, webbing visible; galls form on leaves
Spider Mites
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