What are the common methods for preventing and treating common diseases of household flowers?

Flowers are currently the main household landscaping plants for city dwellers, and various diseases are often encountered during the growing process. If they are not prevented and treated in time, they will affect the growth of the flowers. Below are the prevention and treatment methods for common flower diseases. Take a quick look so you can treat the right problem.

(1) Root rot

Root rot is a plant disease caused by pathogens in the soil. It usually shows as withered leaves, slow growth, and the whole plant gradually turning yellow and dropping leaves.

Root rot happens because the plant is watered too much, drowning the plant, so the plant's root system rots.

When root rot occurs, promptly take the plant out of the pot, throw away the old soil, cut off the rotted roots, remove the diseased branches and leaves, soak in potassium permanganate solution, then replace with new soil and replant it in the pot, and place it in a ventilated, shaded spot.

(2) Powdery mildew

Powdery mildew is a relatively common disease, and the probability of it occurring around us is also frequent. It is caused by a fungal infection. It is generally more active during the plum rain season. At first, white spots appear on the leaves, then they slowly cover the entire leaf until it finally turns gray. Paying attention to ventilation and light is key, and powdery mildew will slowly spread.

Once discovered, deal with it promptly. If powdery mildew infection is found, you can promptly use a small teaspoon of dish soap mixed with water to wash the leaves. If it is severe, cut off the diseased leaves and promptly spray chlorothalonil or thiophanate-methyl solution.

(3) Anthracnose

Anthracnose is a very annoying disease. It generally occurs on plant leaves, showing at first as small water-soaked spots on the leaves. Then the small spots spread outward and become rings of brown lesions, gradually spreading until the entire leaf turns brown and dries up. The lesions can form holes, and diseased leaves easily fall off.

At the early stage of the disease, cutting off the diseased leaves and burning them promptly can prevent it from spreading; during the disease period, promptly spray 75% thiophanate-methyl wettable powder 1000x solution, 75% chlorothalonil wettable powder 600x solution, or Tante Ling wettable powder 500x solution, or 50% tanfumei wettable powder 500x solution. Once every 7 to 10 days, for 3 to 4 consecutive times, gives a relatively good control effect.

(4) Black mold

Also called sooty mold, it is generally caused by the honeydew secreted by aphids. When this disease and pest problem appears, it also means that an insect pest outbreak is about to occur. This disease and pest problem weakens the leaves' ability to photosynthesize, blocks the stomata, and causes leaves to fall off.

Control: An effective control method is to wipe the leaves with diluted soapy water.

(5) Southern blight

Southern blight shows on the whole plant at the roots and the base of the stems. At first, white silky mycelium appears, then it slowly affects the leaves, and finally the plant rots and dies. Southern blight generally occurs in environments with high temperatures, excessively high humidity, and waterlogged soil, so while paying attention to the overall environment, you must also pay attention to water control.

Chemical control: At the early stage of the disease, you can use Juandun diluted 800-1000x or Fengqia Genbao 600-800x, or pour 1% copper sulfate solution at the root of the diseased plant, or use carboxin wettable powder, add water, and spray it.

(6) Fusarium wilt

Fusarium wilt is relatively common on various vegetables and fruits, such as common tomatoes, peppers, peas, and melons. The symptoms are that both the top and lower leaves of the plant wilt, recover slightly at night, and after a period of time the whole plant wilts.

In more serious cases, it affects flowers and causes fruit rot, which seriously affects flowering and fruiting. First, small spots appear on the flowers and fruits, and then as the fruits grow, they slowly become black leathery patches.

These are usually caused by careless watering and water accumulation damaging the plant's root system, so the calcium in the soil cannot be absorbed by the plant, causing the plant to lack water during growth. It is prone to infection in hot, dry environments.

As long as the plants are cared for properly, most diseases and pests can be avoided, and the plants can stay healthy. Do not water directly onto the leaves of the plants you care for. Keep the leaves dry and do not give the plants too much water. This helps avoid infection by most diseases and pests. If disease is found, promptly cut off diseased leaves and branches and promptly spray fungicides, such as chlorothalonil or thiophanate-methyl solution.

The common diseases of flowers include the above 6 major types. During the growing process, everyone should pay attention to prevention in advance, otherwise it will promote the occurrence of diseases. The above are detailed methods for preventing and treating diseases and pests. Do not miss them.