Medicinal plant Araceae anthracnose

Arisaema helerophyllum Blume alias Pinellia essence, tiger palm and so on. It is a perennial herb of Araceae. Take tubers as medicine. poisonous. With a hurricane will be shocked, phlegm effect. Liaoning, Jilin, Heilongjiang, Hebei, Henan, Hunan and Guangxi all have plantings.

Symptoms mainly affect the leaves, petioles, stems and fruits. Leaf spotted leaf spot round or nearly round, size 2-5mm, center part pale to light brown, green to brown edge, diseased parts or black spots, the pathogenic bacteria conidia plate. Stem and petiole lesions produced pale brown spindle-shaped depression spots, dense black spots, and a large number of orange-red conidia accumulate on the conidia discs when the humidity was high. Berry disease also produces red-brown depression spots.

Pathogen Colletotrichum sp. An anthrax fungus is a fungus belonging to the subphylum Fungi. The conidiophores connate, black, break through the epidermis. Sub-developed. There are many scattered bristles in the conidia plate, dark brown, with 2-4 membranes, size 42-1124-6 (μm). The conidiophore stem is cylindrical in shape, and the unit cells are colorless with a size of 14-273.5-5 (μm). Conidiophores sickle-shaped, decurved, unit cells colorless, size 14-243-4 (μm).

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