What are the common methods for controlling celery pests and diseases?

Celery is a very common vegetable in the market. Eating celery in daily life has many benefits, such as detoxifying and nourishing the blood, and its market sales are also good, so many people grow it. When growing celery, some diseases are relatively common. Today Qinnong.com will tell you about some of the more common celery diseases.

1. Soft rot

Although this is said to be caused by bacteria, the environment is actually a big factor too. The reason is that bacteria originally present in the soil enter the celery through some wounds, and then the relatively damp base of the celery triggers the bacteria. The symptoms are blackened, foul-smelling roots, and when touched by hand the rot can be felt. First remove the necrotic plants, then it is recommended to spray with 72% agricultural streptomycin sulfate soluble powder for control.

2. Petiole cracking

The appearance of this condition indicates that the celery needs a certain amount of additional boron, and it also indicates that the soil moisture is too high or too dry, so attention should be paid to drainage and watering. The usual symptom is cracking of the celery stalks. If the cracking is caused by drought, the cracks will appear yellowed and withered; if there is too much water, the color will not change noticeably. For cracking caused by drought, spray a 0.1%-0.3% borax aqueous solution together with water; for wet conditions, apply a certain amount of borax.

3. Septoria leaf spot

This disease generally poses a relatively great threat to the leaves. The reason is that incomplete control allows the mycelium to cling stubbornly to the celery, and then the rainy season triggers the disease. It appears as leaves turning yellow and perforated in batches, and finally withering and falling off. This disease is quite harmful. After it occurs, all surrounding plants should be sprayed with fungicide. 75% chlorothalonil wettable powder 600x solution has a good effect on this disease.

4. Viral disease

This type of disease is mostly triggered by external pests, especially aphids and the like. In the early stage of the disease, the leaves appear uneven, dull in color, and there are also some insects on the leaves. In the later severe stage, it causes the celery to stop developing and gradually become necrotic. The control of this disease must be divided into two aspects: first, pest prevention, and second, treatment of the pathogen. Spraying 15% Bingdubike wettable powder 700-1000x solution is a relatively commonly used treatment. The interval is one week, lasting about one month.

The above are some common disease situations of celery. When growing it daily, prevention and control of pests and diseases must be done thoroughly to avoid later economic losses. Also, in the later stage, the residues of diseased plants must be taken away and not left in the soil, so as to avoid secondary infection.