Prevention and control of wood anthracnose in Brazil

Some flower friends in Brazil have anthrax. Now we will briefly introduce the symptoms, rules, prevention and treatment of anthrax in Brazil.

-, symptoms:

1. The disease causes large leaf spots, and when severe, all the leaves are withered and rotten, losing commercial value.

2. The disease is harmful to a variety of Brazilian diseases. The disease spot mainly occurs at the leaf tip and leaf edge. In the early stage of the disease, small yellow spots appeared on the leaves, and after expansion, they showed irregular large spots and reddish brown; in the later stage of the disease, the center of the disease spot was brown to gray-white, on which there were many small black spots, dark brown margin and yellow halo outside.

Second, the regularity of the disease:

The pathogen overwintered in diseased leaves, diseased plants and diseased bodies, and was spread by wind, rain and water droplets.

2. High temperature (25 degrees Celsius ~ 30 degrees Celsius), heavy rain, poor ventilation and humidity, partial application of nitrogen fertilizer and poor plant growth are all beneficial to the disease.

3. The disease occurred outdoors from 5 to 10 months, serious in the rainy season, and annual indoor disease.

3. Prevention and control methods:

Preventive measures: timely drainage after rain, greenhouse often ventilated and transparent, dehumidification and cooling; application of sparse organic fertilizer or special fertilizer sold in the market in the peak growing season from April to August, about once a month, appropriate amount of phosphorus and potassium fertilizer; the cultivation substrate should be loose, permeable and fertile.

Treatment: at the initial stage of the disease, spray 50% to make 100 grams or protect the work of wettable powder 1000 times, or 10% of the world high water dispersible granule 3000 times, or 25% should get suspension l000 times, or 25% carbon tetralin wettable powder 500 times, etc. Once in 7 ~ 10 days.

The prevention and control methods of Brazilian wood anthracnose some flower friends have anthracnose in their homes. Now the symptoms, rules and prevention methods of Brazilian wood anthracnose are briefly introduced as follows: first, symptoms: 1. The disease causes large leaf spots. In serious cases, a clump of leaves withered and rotted, losing commercial value. 2. The disease harms many kinds of Brazilian wood. The disease spot mainly occurs at the leaf tip and leaf edge. In the early stage of the disease, small yellow spots appeared on the leaves, and after expansion, they showed irregular large spots and reddish brown; in the later stage of the disease, the center of the disease spot was brown to gray-white, on which there were many small black spots, dark brown margin and yellow halo outside. Second, the regularity of the disease: 1. The pathogen overwintered in diseased leaves, diseased plants and diseased bodies, and was spread by wind, rain and water drops. 2. High temperature (25 ℃ ~ 30 ℃), heavy rain, poor ventilation and humidity, partial application of nitrogen fertilizer and poor plant growth are all beneficial to the disease. 3. The disease occurred outdoors from May to October, the disease was serious in the rainy season, and the annual disease occurred indoor. Third, prevention methods: timely drainage after rain, greenhouse often ventilated and transparent, dehumidification and cooling; application of sparse organic fertilizer or special fertilizer sold in the market in the peak growing season from April to August, about once a month, appropriate amount of phosphorus and potassium fertilizer; the cultivation substrate should be loose, permeable and fertile. Treatment: at the initial stage of the disease, spray 50% to make 100 grams or Baogong wettable powder 1000 times, or 10% high water dispersible granule 3000 times, or 25% should get 1000 times suspension, or 25% carbon tetralin wettable powder 1000 times, and so on. Once every 10 days. Detailed introduction of prevention and control methods and symptoms of wood anthracnose in Brazil

Brazilian wood, a common woody flower, is often used in family courtyards and gardens, attracting many flower lovers to breed. The cultivation method of Brazilian wood is relatively simple, so do you know what are the common diseases of Brazilian wood? What is the prevention and control method of wood anthracnose in Brazil? Today, the editor will give you a detailed introduction of the relevant knowledge, let's learn from the editor.

First, symptoms:

1. The disease causes large leaf spots, and in severe cases, a clump of leaves are withered and rotten, losing commercial value.

2. The disease harms many kinds of Brazilian wood. The disease spot mainly occurs at the leaf tip and leaf edge. In the early stage of the disease, small yellow spots appeared on the leaves, and after expansion, they showed irregular large spots and reddish brown; in the later stage of the disease, the center of the disease spot was brown to gray-white, on which there were many small black spots, dark brown margin and yellow halo outside.

Second, the regularity of the disease:

The main results are as follows: 1. The pathogen overwinters in diseased leaves, diseased plants and diseased bodies, and is spread by wind, rain and water drops.

2. High temperature (25 ℃ ~ 30 ℃), heavy rain, poor ventilation and humidity, partial application of nitrogen fertilizer and poor plant growth are all beneficial to the disease.

3. The disease occurred outdoors from May to October, the disease was serious in the rainy season, and the annual disease occurred indoor.

3. Prevention and control methods:

Prevention methods: timely drainage after rain, greenhouse often ventilated and transparent, dehumidification and cooling; application of sparse organic fertilizer or special fertilizer sold in the market in the peak growing season from April to August, about once a month, appropriate amount of phosphorus and potassium fertilizer; the cultivation substrate should be loose, permeable and fertile.

Treatment: at the initial stage of the disease, spray 50% to make 100 grams or Baogong wettable powder 1000 times, or 10% high water dispersible granule 3000 times, or 25% should get 1000 times suspension, or 25% carbon tetralin wettable powder 1000 times, and so on. Once every 10 days.

That's all I know about Brazilian wood today. I hope it will be helpful for flower friends to read this article. If you want to know more about Brazilian wood, please continue to follow the succulent flower bed, we will provide you with more related knowledge!