Jasmine Sclerotium Blight Control Techniques
This article provides a detailed introduction to jasmine-related topics from a floral clinic perspective, including control techniques for jasmine sclerotium blight, with specific content as follows:
Jasmine sclerotium blight is the most severe disease affecting jasmine. When the disease is severe, it causes the plant to wither and significantly impacts yield. The symptoms primarily appear on the stem base near the ground. The infected stem base turns dark brown and is covered with white silky mycelium, often radiating outward, especially prominent at the edges. Later on, numerous tea-brown sclerotia resembling rapeseed are formed on the affected area. When the weather is humid, the mycelium extends to the surface around the roots and soil crevices, also forming sclerotia. In the later stage, the stem base of the infected plant completely rots, leading to stem and leaf wilting and eventual plant death.
Control Measures
1. Promptly remove and destroy the diseased plant residues, evenly spray "Tree Protector" for disinfection and sterilization, to prevent virus replication and infection. Strengthen management and strictly implement quarantine.
2. Chemical control. In the early stages of the disease, 50% zineb 1000 times liquid or 50% carbendazim 1000 times liquid, mixed with an appropriate amount of "New High Lipid Film," can be evenly sprayed on the stem base of the plant and the surrounding soil. Reapply after 7-10 days, with the pesticide efficacy increasing by over 300%, effectively killing the pathogens in the soil and inhibiting disease spread.
3. Biological control. Using antibiotic-producing bacteria to control jasmine sclerotium blight has good results. First, cultivate the strain of Trichoderma, then mix it with sterilized bran to create a Trichoderma preparation. When using the Trichoderma preparation, mix it evenly with fine soil and apply it to the soil. The soil should maintain a certain level of humidity to promote the growth and reproduction of Trichoderma in the soil, thereby inhibiting the growth of the sclerotium fungus and achieving the goal of disease prevention. (Haiyan)
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