What are the reasons for the rooting of tomato stalks?
There are a lot of long-rooted trees on the vines in the tomato shed, and most of them appear in the middle and lower part of the vine, and some of them also occur in the upper part. They do not know what caused it. "According to common sense, the root system should be long in the earth, and tomatoes are prone to adventitious roots. They must also occur on the stalks near the soil. But how do the roots of the tomatoes in my shed grow in the middle and upper parts of the vines? †Cut open the plant stems and found that the pith part of the diseased plant has turned black and green, gently pinching the green gel to overflow, and the serious outer surface of the stem vine becomes brown-black, and it is judged that this is the bacterial marrow pith of the tomato. Bacterial medullary necrosis is a common disease of tomatoes, especially in the middle period of tomato growth (that is, during the third to fourth ear to flowering). Pathogens may infect from natural orifices and wounds, such as dermal holes in the base of the stem, or wounds from leafing. After the pathogen enters the plant, it blocks the passage of various nutrients in the stem, and the upward transport of water and the supply of organic nutrients are hindered, and many adventitious roots are promoted on the stem. Usually when we see adventitious roots appear on stems, it indicates that bacterial myeloid necrosis has already occurred. It is very difficult to treat with drugs. Therefore, the main point of preventing and treating this disease is to pay attention to the prevention of the early stage. Disinfection with streptomycin or melittin roots during colonization. Do not exceed 30°C during the day-to-day management and control the humidity in the shelter to prevent condensation. In particular, avoid pruning on cloudy days. It is best to use a pair of scissors to cut off the leaves, leaving 1-2 cm at the base to avoid direct invasion of the pith. Sodium Methoxide,Sodium Methoxide Powder,Sodium Methoxide 20%,Solid Sodium Methoxide 124-41-4 ShanDong YingLang Chemical Co.,LTD , https://www.sdylhgtrade.com