What about acacia sclerotium? Acacia sclerotium is mainly caused by the sclerotia attached to the soil in the winter, and is spread by watering and rain. In the early stage of the disease, the sclerotial germination hyphae will infect, so the main disease spread in the field is through bacteria. Silk climbing and contact infection, followed by Xiaobian to elaborate on the prevention and control measures of acacia sclerotinia.
[Amaranthus pest-resistant varieties, spraying and disease prevention measures]
First, the symptoms of acacia sclerotinia
In the diseased part, the leaves of the leek will brown in the early stage of the disease, showing a wet and rot, which eventually leads to the death of the leek.
Second, acacia sclerotinia prevention and control measures
1. Breeding according to local conditions
Do not rotate with non-host plants according to local conditions. When planting, choose fertile soil with sufficient organic matter.
2, choose to terminate the insect-resistant variety
Termination of insect-resistant varieties can effectively control pests, and at the same time carry out fertilization together. Before planting, first apply sufficient fertilizer to the soil to fill the water, and apply 3000 kg of farmhouse fertilizer and 30 kg of compound fertilizer 30 kg per mu. And the soil should be disinfected by spraying disinfectant with new high-fat film 800 times on the surface of the soil.
3, reasonable close planting, reasonable spraying of water and fertilizer
a. When planting amaranth, pay attention to remediation of the planting and drainage system to prevent water and flooding during the growth of the leek.
b. It is possible to apply a small amount of fertilizer to the fertilizer several times, but it should be noted that the application amount of nitrogen fertilizer should not be excessive.
c. Regularly spray the micro-fertilizer-rich foliar nutrient plus new high-fat film, which can ensure the stable growth of amaranth, shorten the harvest time of amaranth, and improve the planting space between the leek plants, increase the permeability, and effectively reduce Plant incidence.
d. During the growth process of amaranth, spraying a proper amount of Zhuanglingling in the growing season can make the leaves of the leek thick and the leaves fresh and tender, which is beneficial to increase the yield of amaranth.
3, timely spraying, prevention and control of disease
In the period of harvesting the leek to the new plant of the leek, the agent can be sprayed for disease prevention and treatment, and it is required to spray two or three times or more of 75% chlorothalonil WP 800 times solution, 50% sclerotium agent wet powder, etc. Sexual agents, sprayed every 7-15 times, these kinds of targeted drugs can be exchanged, the control effect will be more obvious, not just use one. At the same time, it can also be combined with the application of a new high-fat film 800 times liquid to enhance the efficacy and improve the use of the drug.
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