Downy MildewDowny Mildew SymptomsIt usually occurs in late spring and autumn, mainly harming the leaves of the plant, forming light yellow spots on the leaves. In the later stages of the disease, the spots will turn yellow-brown, causing the leaves to wither and die. Downy Mildew ControlIt is necessary to strengthen the cultivation and management of the plants, adopt the high-bed cultivation method, and strictly prohibit flooding when watering. You can use chlorothalonil and chlorpyrifos for spraying, and try to spray the liquid to the back of the leaves at the base. RotRot symptomsRot disease usually begins in the later stage of chicory's growth, and will develop and extend upward from the petiole or rhizome at the base of the plant, causing rot and emitting an unpleasant odor. Rot controlThe seeds can be treated and mixed with carbendazim. It is necessary to strengthen cultivation management, apply fully decomposed organic fertilizer, drain water in time during rainy seasons, and remove diseased plants as soon as they are found. You can spray the base of the plant with thiophanate-methyl to prevent and control rot. |
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