Root cancer disease injures a variety of seedlings, young trees and trees. After the onset of large cherry, it is not easy to prevent and control, pre-morbidity, the use of integrated approach, able to obtain some manipulation, the onset of the middle and late stages, only pull out and destroy. In recent years, because of climate anomalies, fertilizer applied too much, fertilization methods are unreasonable, too much pursuit of high yield, resulting in a high incidence of root cancer, fresh fruit production quality is reduced.

Cherry root cancer disease: pests and diseases are mainly produced in the tip of the stem, but the main stem, the main root is also susceptible to disease. Pre-onset disease produced ring-shaped, light yellow, soft material, surface clean malignant tumors. It did not take long to slowly expand into dark brown to dark red, hard material, the surface is not smooth, and cracked into different sizes of malignant tumors. Malignant tumors isolate the peach tree water and nutrients around the transmission, light cause plants and trees difficult to send new shoots, the color of the tea lost green, growth decline; more serious cause plants and trees die, reduce the production and marketing of fresh fruit and quality.

Pathogenesis: Root cancer bacteria survive on the surface of cancer tumors and in the soil. The survival time of the fungus in the soil is related to the survival time of the host residue in the soil, and sometimes it can survive for many months or even more than one year, but the fungus usually loses its daily life force if there is no opportunity to infiltrate the host within two years. In addition to the key to spreading the disease through irrigation or precipitation, specialized tools and machines used for grafting and root pests can also spread the disease, and long-distance transportation of seedlings can often assist in the spread of the disease.

Greening seedlings must be sterilized before planting: soak them in a 1% sodium thiosulfate 0.5% aluminum sulfate water solution for 5 minutes and then clean them neatly with tap water, and then plant them.

Pick the ground without root cancer quickly create a seedling base: if the seedling base land has been environmentally contaminated must be carried out about 2 years of rotation, can be pre-seedling.

Do a good job of environmental health of the seedling base: the use of physical and mental health of the saplings to carry out the grafting method, grafting knife should be sterilized in a good solution of potassium permanganate. At the same time to avoid greening seedlings caused by a variety of wounds.

Soil treatment: to the growing peach tree or greening seedlings chasing application of organic fertilizer plus 0.5% aluminum sulfate, change the soil ph acidity and alkalinity, or sprayed with Meiguo four-in-one 1000 to 1200 times solution to enhance the disease resistance of the main stem.

Immediate destruction of diseased plants: plantation if found to be infested with disease prominent green seedlings, try to pull out immediately destroyed, to avoid spreading. For the first onset of the plant, remove the tumor with a knife, followed by aluminum chloride or French Bordeaux syrup wipe wounds, or use methyl ice iodine solution (50 parts of industrial methanol, 25 parts of acetic acid, 12 parts of iodine tablets), or 20 parts of difluorobenzene o-xylenol sodium, 80 parts of wood alcohol mixed with coated tumors. Initial onset of the tree, with colchicine, ampicillin, hygromycin to do intradermal injection or soak the knot, the disease has a regulating effect.