Also known as black root disease, mites. It is the first major disease in the production of lotus roots. It is generally affected by shallow crops and shallow water in old fields and continuous cropping fields.
Ring the knot and cut production. It is a disease of lotus root which is caused by the infection of cysts and stems. It mainly damages underground stems, aboveground leaves and foliage. Disease stem
The leaves that were drawn were green and light in color. The brown leaves began to dry from the margins of the leaves and the petioles finally died. The bacteria invade from the wound, the root or the growing point,
Bacteria spread with water irrigation.
Second, lotus leaf blight is the second most serious disease on lotus root. The pathogen is the pathogenic fungus of the monofilament genus. The main harm to the lotus leaves, the lotus leaves the edge first
The lesions are pale yellow and gradually spread to the middle of the leaves. They appear yellow-brown and eventually spread from the leaves to the veins until the whole leaves die. It's hot and rainy,
Favorable disease, shortage of fertility in Putian, serious diseases.
Three, lotus leaf spot mainly damage the leaves, petiole can also occur on occasion, is caused by pathogenic fungi of Corynepora.
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