Prevention and treatment of Flower Root Cancer (Picture)

Root cancer is also called crown gall disease. Cherry blossom and rose root cancer mainly occurs in the root neck, but also in the root and aboveground parts. At the beginning of the disease, there were small round tumors, then gradually enlarged and hardened, the surface was rough, cracked, the color changed from light to dark brown or dark brown, and the interior of the tumor was lignified. Tumors vary in size, as big as fists or larger, and the number varies from several to a dozen. Due to the destruction of the root system, the diseased plant grows slowly and the heavy plant dies. The disease not only harms cherry blossoms and rose, but also harms more than 300 kinds of plants, such as dahlia, cloves, begonias, geraniums, roses, plum blossoms, trees and fruit trees.

The pathogen and tumor survived the winter in the epidermis and soil, and the disease tissue residue could survive in the soil for more than one year. Germs are transmitted by water flow, underground pests, grafting tools, farm tools, etc., and diseased seedlings and seed strips can be transported over a long distance. After the bacteria invaded from the wound, they showed symptoms for several weeks or more than one year. The incidence is high in the sandy soil with high alkali and humidity, and continuous cropping is beneficial to the disease, while the more root wounds are, the more serious the disease is. The prevention and cure method ① strengthens the quarantine, the diseased seedlings can be soaked in 500~2000ppm streptomycin solution for 30 minutes or 1% copper sulfate solution for 5 minutes, washed with clean water and planted. The serious disease areas of ② were planted after rotation or disinfection of soil with chloropicrin for more than 2 years. ③ is carefully cultivated to avoid all kinds of wounds. ④ is changed from split grafting to bud grafting, and grafting utensils can be sterilized with 0.5% potassium permanganate. The seriously diseased plants of ⑤ should be removed, and the mildly diseased plants can be irrigated with 300,400 times, or smear the wound with 500~2000ppm streptomycin or 500-1000ppm Streptomycin or 5% ferrous sulfate after tumor removal. It is also reported that the application of methyl ice iodine solution (50 parts of methanol, 25 parts of glacial acetic acid, 12 parts of iodine tablets) has a therapeutic effect, and Agrobacterium radiatum 84 can be used for biological control. Through the detailed introduction of this article, I hope you can gain something! Welcome to continue to follow Zuihua Network and learn more about the latest information about the flower clinic! Prevention and treatment of Flower Root Cancer

Root cancer is also called crown gall disease. Cherry blossom and rose root cancer mainly occurs in the root neck, but also in the root and aboveground parts. At the beginning of the disease, there were small round tumors, then gradually enlarged and hardened, the surface was rough, cracked, the color changed from light to dark brown or dark brown, and the interior of the tumor was lignified. Tumors vary in size, as big as fists or larger, and the number varies from several to a dozen. Due to the destruction of the root system, the diseased plant grows slowly and the heavy plant dies. The disease not only harms cherry blossoms and rose, but also harms more than 300 kinds of plants, such as dahlia, cloves, begonias, geraniums, roses, plum blossoms, trees and fruit trees.

Morbidity regularity

The pathogen and tumor survived the winter in the epidermis and soil, and the disease tissue residue could survive in the soil for more than one year. Germs are transmitted by water flow, underground pests, grafting tools, farm tools, etc., and diseased seedlings and seed strips can be transported over a long distance. After the bacteria invaded from the wound, they showed symptoms for several weeks or more than one year. The incidence is high in the sandy soil with high alkali and humidity, and continuous cropping is beneficial to the disease, while the more root wounds are, the more serious the disease is.

Prevention and cure method

① strengthens quarantine, the diseased seedlings can be soaked in 500~2000ppm streptomycin solution for 30 minutes or 1% copper sulfate solution for 5 minutes, rinsed with clean water and planted.

The serious disease areas of ② were planted after rotation or disinfection of soil with chloropicrin for more than 2 years.

③ is carefully cultivated to avoid all kinds of wounds.

④ is changed from split grafting to bud grafting, and grafting utensils can be sterilized with 0.5% potassium permanganate.

The seriously diseased plants of ⑤ should be removed, and the mildly diseased plants can be irrigated with 300,400 times, or smear the wound with 500~2000ppm streptomycin or 500-1000ppm Streptomycin or 5% ferrous sulfate after tumor removal. It is also reported that the application of methyl ice iodine solution (50 parts of methanol, 25 parts of glacial acetic acid, 12 parts of iodine tablets) has a therapeutic effect, and Agrobacterium radiatum 84 can be used for biological control.