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Harm and Control Methods of Dodder in Potatoes
[Host crops] Potato, tomato, eggplant, pepper, Chinese onion, soybean and many other crops. [Disease diagnosis] It occurs sporadically or in patches in the field. Dodder twines its vine stems around the stems of the plants, coiling around them, and at the point of contact with the potato plant it grows haustoria that penetrate into the stem or petiole tissues, absorbing the plant's water and nutrients, causing the affected plants to grow weakly. The plants are stunted, with bent and slender stems, small and yellowing leaves, and few and small tubers. In severe cases, the stems and leaves of the plant are completely covered with dodder, and the whole plant stagnates and stops growing until it dies. The pathogenic dodder is Chinese dodder (Cuscuta chinensis). The dodder stem is slender
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Dodder Control Methods and Technical Key Points in Soybean
Dodder, also called yellow silk vine or tangling silk vine, is a malignant weed. It harms many crops and can cause total crop failure in soybean, and it occurs commonly in all regions. (1) Morphology: The stem of soybean dodder is yellow, orange-yellow or yellow-green, smooth and hairless, thread-like, and coils leftward around the host stem. The leaves are reduced to membranous scales. The flowers...
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