Symptoms and Control Methods of Leaf Spot and Smudge Disease in Paphiopedilum (Slipper Orchids)

Orchids Jan 1, 1970 0 views

Leaf Spot and Smudge Disease in Paphiopedilum

Distribution: Worldwide. Pathogen: Penicillium thomii. Host: Paphiopedilum (slipper orchids). Symptoms: Spots or smudges on leaves, round or elongated, wet, dark brown with light brown edges, spots up to 3-3.5 cm in diameter, mainly seen on old leaves. Control: General fungicides. Chen Xinqi, Ji Zhanhe

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Symptoms and Control Methods of Leaf Spot and Smudge Disease in Paphiopedilum (Slipper Orchids)

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