The latest course of prevention and treatment of cherry root cancer

Cherry is a kind of fruit tree with high economic value. With the expansion of market demand in recent years, its planting area is also expanding. There will be diseases and insect pests when planting, and root cancer is one of the main diseases of cherries, and the harm caused by the development of cherries is becoming more and more serious. let's take a look at the prevention and control techniques of cherry root cancer.

1. Symptoms

Root cancer disease, also known as root nodule disease and crown gall disease, mainly harms the root system and rhizome of the plant, and tumors of different sizes appear during the onset of the disease. In the early stage of the disease, there are spherical gray-white tumors on the spot. The surface of these tumors is rough, the back is soft, and the interior will be xylem in the later stage. The color will gradually deepen and the texture will be hard. These tumors will lead to the Lignification of plant transport tissue, affecting the normal absorption and transport of nutrients and water. Over a long time, the tree is weak, the fruit quality is low, the yield is low, until the plant gradually dies.

2. The regularity of the disease

Its pathogenic bacteria will survive the winter in the diseased tumor tissue. When the outer layer of the diseased tumor breaks, the bacteria will be washed down by Rain Water and watered into the soil and can be latent for more than a year. Through the absorption of water and nutrients by plant roots, it continues to spread, or through insects, but the largest mode of transmission is carried by seedlings. It is planted in sandy loam, neutral or slightly acidic soil, generally will not be published, if planted in clay people, poor drainage, alkaline soil is more serious. High soil moisture can also induce the disease, plant roots have wounds, bacteria will invade from the wound, a tumor can be formed in a short time.

3. Prevention and control technology

First of all, the seedlings without bacteria should be selected for planting, and the seedlings should be strictly quarantined and disinfected before planting to reduce the incidence. Turn the soil deeply, increase the application of organic fertilizer, enhance the tree potential, improve the disease resistance of the plant, at the same time appropriate amount of topdressing and foliar spraying fertilizer, at the same time pay attention to the supplement of trace elements, less use of herbicides and paclobutrazol. Timely watering during drought, timely drainage in rainy season, and prevention and control of underground pests should be done at the same time, so as to prevent pests from biting through the roots and create favorable conditions for germs to invade. After discovering the diseased plant, the diseased root should be removed in time, the tumor should be scraped and burned, and then disinfected with copper sulfate solution and stone sulfur mixture.

The above is the introduction of cherry root cancer prevention and treatment technology, hope to help you, want to know more related knowledge, please pay attention to us.