The Latest Pest and Disease Control Methods for Cabbage Cultivation

Cabbage is a cruciferous herbaceous plant and a vegetable we commonly eat. It is widely cultivated in all major provinces of our country, has extremely high [value] and economic value, and can also excellently prevent cancer and heart disease. During cultivation, because of climate and human factors, cabbage suffers from the invasion of many kinds of pests and diseases, seriously affecting the yield and quality of cabbage. So how should these pests and diseases be handled? Let's take a look at the details below.

1. Soft rot

Soft rot generally occurs in the late growth stage of cabbage, usually when the head is forming and hearting. The pathogen invades from the base of the cabbage stem or the leaf stalk. The infected site begins to show water-soaked lesions. As the lesions expand, the entire root stem and leaf head eventually become diseased. In a dry environment, the head-forming leaves turn brown and dry, while in a moist environment, the leaf head rots and softens, with a sour odor.

Control methods: Carry out preventive measures well, practice reasonable crop rotation to reduce pathogens in the soil, and before sowing and planting, treat the seeds with chemicals to eliminate pathogens carried by the seeds. When one or two plants become diseased, they can be directly pulled out and taken out of the field, and the diseased holes should be disinfected well. If the disease occurs locally, copper hydroxide and daisen ammonium can be used for control. If the disease occurs over a large area, then water streptomycin and streptomycin should be sprayed for control.

2. Black spot

Black spot mainly damages the leaves. When the disease occurs, small water-soaked spots appear on the leaves. As the disease develops, these spots gradually become small brown round spots, and the edges of the lesions also have brown ring-like halos. When the disease is severe, the lesions show concentric rings, and finally become sunken brown spots. In a moist environment, the lesions will also be covered with brown mold-like growth, causing the leaves to wither and die.

Control methods: Similarly, the seeds should be disinfected and sterilized. When the disease occurs, chemicals such as oxadixyl · mancozeb, fu · iprodione, chlorothalonil, and benomyl can be sprayed for control. Pay attention to alternating the chemicals to avoid the disease developing resistance to them.

3. Black leg

Black leg can occur at the seedling stage and in adult plants, mainly damaging the leaves and young stems. It is more severe at the seedling stage. When the disease occurs, round lesions appear, initially brown, and as the disease develops, they become grayish white. Many small black dots are also distributed on the lesions. When seedlings become diseased, the lesions spread downward along the stem, causing the surface layer of the stem to rot and fall off, exposing the xylem inside, and the seedlings are prone to death.

Control methods: Practice reasonable crop rotation with cruciferous vegetables for more than 3 years, disinfect the seeds and soil before planting, increase the application of organic fertilizer to improve disease resistance, promptly replant when diseased plants are found, and when the disease occurs, chemicals such as thiophanate-methyl, thiophanate-methyl, and Dawang can be used for control.

4. Viral disease

Viral disease can harm both seedlings and adult plants. When seedlings become diseased, chlorotic spots appear on the leaves, the leaves gradually begin to yellow, and finally the entire leaf surface yellows except for the veins. When adult plants are infected, the young leaves show uneven mottling, while the old leaves have dark brown necrotic spots and the leaves shrivel.

Control methods: Choose varieties with strong disease resistance for planting, practice reasonable crop rotation, promptly pull out diseased plants, water and control temperature scientifically and reasonably to prevent the occurrence of viral disease, and chemicals such as virus spirit, ningnanmycin, and virusbike can be used for control.

5. Insect pests

There are many kinds of insect pests on cabbage. Common ones include cabbage caterpillars, noctuid moths, diamondback moths, and aphids. They all like to gather on the leaves of cabbage, sucking the sap of the leaves or chewing the leaf tissue, causing the leaves to wither and die, affecting the plant's photosynthesis and reducing yield and quality. In severe cases, the plants die.

Control methods: Carry out agricultural and chemical control measures well, clean the field, timely cultivate and weed to reduce pest sources, and trapping methods can also be used for control. When pests break out, spray chemicals for control.

The above are control methods for pests and diseases in cabbage cultivation. We hope they can help you. If you want to learn more about cabbage cultivation, please stay tuned to us.