Is it easy to get anthrax in the late autumn season?

Hydrangea and moon flower anthracnose protection.

Usually when there are seasonal flowers or hydrangeas planted at home, they are particularly susceptible to anthracnose in spring and summer, and if they appear on the seasonal flowers, there will be some irregular patches of black and yellow on the leaves of the plant, which looks like ink paintings.

Above is the moon flower infected with anthrax.

If anthrax appears on hydrangeas, the leaves of the plant are like holes burned by cigarette butts, and the edges of the leaves of the plant will be blackened, and when the anthracnose is more severe, there will be some holes in the leaves.

Above is a hydrangea infected with anthrax.

For example, in the summer, when the temperature exceeds 30 degrees Celsius and the environment is excessively humid, it is particularly susceptible to anthrax in rainy weather. It is also necessary to pay attention to proper shade and maintenance during summer exposure, especially in summer afternoons.

After the plant is infected with anthracnose, in addition to the above-mentioned fungicides, you can also choose the right agent according to each place, you can go to the local agricultural material store to buy, if it is a vegetable crop, you can spray Cimproy Chemical, spray once every 10 days, spray two or three times in a row.

If it is a potted fruit, it can be sprayed with mixian bromonitrile; If it is an ornamental flower, you can choose a new type of imidazole broad-spectrum fungicide, such as the common applicator and Baitai, which are good choices.

Easy, 1Clean up the rotten leaves in a timely manner, 2 spray carbendazim every 7-14 days, 3Peeling off the surface of the soil ball can be effectively prevented when changing pots (because the surface of the soil will carry fungi).

Anthranose, leaf damage, symptoms are generally manifested in the leaf margin, semicircular lesions, dark brown edges, brown to light brown in the middle; Later in the process, the lesions turn gray in the middle and often fall off. The lesions are uniformly black with irregular radial edges. In a humid environment, there are small black spots on the lesions, that is, the conidia disc of the pathogenic bacteria.

The disease is caused by a fungus, and the causative bacterium is colloidal anthracnose, which is also known as Rosa anthracnose. The pathogen overwinters in the diseased area, and spreads through wind, rain or insects when the temperature and humidity are suitable in the second year. Generally, the disease begins in the late growth period of spring shoots, and flourishes in summer and autumn shoots.

The disease is severe under high temperature and humidity conditions.

Horticultural control: increase the application of organic fertilizer, prevent partial application of nitrogen fertilizer, appropriate application of phosphorus and potassium fertilizer, drainage after rain, and prevent moisture retention. Remove the sick and residual bodies in time, and burn them in a centralized manner or bury them deeply to reduce the source of bacteria.

Anthracnose in the moon season flower is handled correctly by the University.

Hello, from the foliage it should be black spot.

Symptoms At the onset of the disease, irregular black-brown spots appear on the leaf surface, which gradually spread, infecting the branches and shoots and yellowing the adjacent tissues. In severe cases, all the leaves turn yellow and fall off, and the damaged seedlings die.

Prevention and control measures. In summer, the period of rapid growth of roses, the incidence of infection is the highest, and it is the period of high incidence of black spot and powdery mildew.

1. Choose disease-resistant varieties.

2. Eliminate pathogens. Insist on removing dead plants and diseased leaves every year to reduce the pathogen of infection.

3. Enhance resistance. Strengthen field management, reasonable fertilization, increase phosphorus and potassium fertilizer, clear ditch drainage, do not use spray watering, moderate pruning, loosen soil cultivation, improve root vitality, improve growth, and enhance plant disease resistance.

4. Pharmaceutical prevention and control. At the beginning of spring of the following year, before the germination of roses, 100 times of crystalline sulfur mixture was sprayed. In summer, the new leaves are sprayed at the beginning and continue until winter.

At the beginning of the disease, spray 1000 times of 75% chlorothalonil wettable powder, or 500 to 600 times of 45% thiophanate(Tecto) suspension, 800 times of 40% flusilazole or 25% mycloconazole emulsifiable concentrate, or 40% polysulfur suspension or 50% anthrax formeate wettable powder or 50% compound thiophanate, 70% methyl tobuzine 700 to 1000 times, 50% antibacterial extra wettable powder 800 to 1000 times, 80% zeb 800 times, Deqing(Nodal decoupling) 1000 times of emulsifiable concentrate, spray once every 7 days in the rainy season, spray once every 7 to 10 days during the normal growth period and the rainy season, spray 4 to 5 times in a row, can control the spread of diseases. When the disease is severe, you can spray 70% killable, 30% copper oxychloride suspension 800 times, 75% chlorothalonil 500 times, and clear emulsifiable concentrate 1000 times, spray 3 to 5 times, 7 to 10 days 1 time. Among them, Deqing (detonatory) emulsifiable concentrate 1000 times and 75% chlorothalonil 500 times liquid have the best control and anti-effect effects.

Like what was said upstairs, you can spray 500 times more carbendazim solution.

Anthracnose is easy to occur under high temperature and humid conditions, and improper watering, insufficient light, soil clays, poor drainage, poor ventilation, partial nitrogen fertilizer, etc. will cause anthracnose during the growth period.

Causes of anthracnose.

In addition, improper watering, insufficient light, heavy soil, poor drainage, poor ventilation, partial nitrogen fertilizer, etc. will cause anthracnose during the growth period.

Symptoms of anthrax in the menstrual season.

Anthracnose can harm the growth of leaves, and semicircular lesions appear on the leaf margins, dark brown, slightly lighter in the middle, brown to light brown, and in the later stage, the middle of the lesions becomes gray, accompanied by defoliation.

Anthrax in the menstrual season**.

Anthracnose can be sprayed with 50% antibacterial special 800 times solution, or Bordeaux liquid, or mancozeb 700 times liquid, methyl tobuzin wettable powder, the prevention and control effect is good, and the anthracnose is not easy to recover, and it needs to be pruned in time.

Methods for the prevention and control of anthracnose in the monthly season.

In the winter season, you can carry out a large pruning, remove the diseased branches and leaves in time, concentrate on burning, do a good job of keeping warm in winter, shade in summer, prevent frost damage, sunburn damage and various damages, in the rainy season, the soil is too wet to drain in time, maintain air circulation, and reduce germs.

You can also increase the application of organic fertilizer, not partial application of nitrogen fertilizer, pay attention to the combination of phosphorus and potassium fertilizer, which can improve the disease resistance of plants, drain water after rain, prevent excessive air humidity, remove disease residues in time, concentrate on burning or deep burial, and reduce the spread of bacteria.