Causes and control methods of celery rotten heart

The rotten heart of celery is a serious disease, which dissolves in the core of celery, but can not be eaten normally, it can occur in the whole growth stage of celery, the disease of the seedlings is very serious, if it is light, the yield will be reduced, and if the harvest is heavy, it will bring great economic losses to farmers. So what is the cause of the rotten heart of celery? How to prevent and cure it? Let's come to the pro-agricultural network to get to know it.

1. Lack of calcium and heartache

Celery in the lack of calcium, it is very easy to cause heart rot, resulting in rotten heart, which is also the main reason for the rotten heart of celery. In the early stage of calcium deficiency, the growing point of celery began to turn brown, and gradually turned black with the passage of time, until it died. With the development of the disease, the disease began to gradually extend downward, invading the base of the stem, resulting in the opening of the growth point will find that the interior is hollow, rotten and sour.

Prevention and treatment measures: add an appropriate amount of calcium fertilizer to the base fertilizer before planting, and spray foliar fertilizer to prevent it. Once the phenomenon of heart rot occurs, deal with it in time, prescribe the right medicine to the case, and use the medicine to treat heart rot.

2.Breaking heart due to boron deficiency

Boron deficiency can also lead to heartache. Boron in the soil is too low or planting can not absorb boron, while celery is extremely sensitive to boron. When boron is deficient, the plant growth is deformed, the leaf veins begin to fade, the heart leaves are brown and scorched, and the stem cracks appear over a long time.

Prevention and control method: also add appropriate amount of boron fertilizer to the base fertilizer, or spray foliar fertilizer in the later stage, mix borax with water into 0.1% solution, spray once a week, 3-4 times in a row.

3. Black rot

Black rot is a fungal disease. Fungi often lurk in the soil, invading from the base of celery stems and causing heart rot. In the early stage of the disease, grayish-brown spots began to appear in the infected areas. with the development of the disease, the spots continued to expand, and the color also changed to dark green or dark brown. At the time of onset, the appearance is not easy to detect, until the subcutaneous tissue breaks, exposing the infected rotten tissue, the bacteria can be transmitted through Rain Water and the soil.

Prevention and control methods: do a good job of soil disinfection, eliminate pathogens, pay attention to rain-proof measures in overcast and rainy seasons, do a good job of drainage and waterlogging, and cut the route of transmission. It is found that the diseased plants can be sprayed with 75% chlorothalonil wettable powder 700-800 times or 50% propofol 600 times for prevention and control.

4. Soft rot

Soft rot is a bacterial disease, which is easy to infect when planted in a dark and humid environment, and it is also spread through water. The disease first occurs in the stem or the base of the stem, and spreads upward to the heart leaf, which is often confused with the symptoms of element deficiency. However, the characteristics of soft rot are soft when pressed, accompanied by bad smell, which is easy to identify.

Prevention and control methods: also do a good job of seed, soil and water disinfection measures to prevent infection because of these ways to carry bacteria, the disease can be sprayed with 27% copper noble suspension 600 times or 77% can kill 500 times of wettable particulate powder for prevention and treatment.

The above are the causes and prevention methods of celery broken heart brought by pro-agricultural network. I hope it can help you. If you want to know more about celery planting, please pay attention to pro-agricultural network.