How to prevent and cure the perforation of cherry blossom brown spot?
How to prevent and cure the perforation of cherry blossom brown spot? Please introduce the method of cherry blossom brown spot perforation: first, symptomatic perforation can be divided into fungi and bacteria. Cherry blossom brown spot perforation is caused by fungi, which is mainly harmful to leaves and also infects new shoots, starting from the lower part of the crown and gradually spreading upward. In the early stage of the disease, there were needle-like purple-brown spots on the front of the leaves, and then expanded into round or nearly round spots with a diameter of 3-5 mm. The brown spots appeared on the edges of the brown spots, and gray-brown mildew spots appeared on the later spots. The edge of the spot produces a separation layer, and the lesion dries up and falls off, forming a perforation. Second, the incidence regularity of cherry blossom brown spot perforation pathogen overwintered in diseased leaves or tips, and spores spread through wind and rain in the following year, invading from stomata. It starts in June every year and is seriously ill from August to September. The disease is serious in the year with strong wind and rain, and it is easy to suffer from drought and weak trees in summer. 3. Control methods ① collects and burns susceptible branches and leaves in autumn to reduce the source of infection. ② should strengthen the management measures, increase the application of organic fertilizer, phosphorus and potassium fertilizer, and prevent drought and stagnant water in time, so as to enhance the tree potential and improve the resistance. Before and after ③ leaf spreading (especially on seedlings), spray 1000-1500 times solution of Bishi shark, or 65% Dysen zinc 500 times solution or Baume 3-5 degree stone sulfur mixture or 1 Vera 1VL Bordeaux solution to prevent. When the disease occurs, 2000-3000 times liquid of Penicillium can be used to control the spread of the disease in time. You can also use amiceda, carbendazim and so on. Click for more cherry blossom planting techniques click to get more flower planting techniques
- Prev
Where are the cherry blossoms suitable for planting?
Where are the cherry blossoms suitable for planting? Please introduce the warm and humid environment of cherry blossoms. Require sufficient sunshine, do not tolerate dampness, do not tolerate salt and alkali, avoid waterlogging, cold, drought, flowering afraid of strong wind and smoke. It is suitable to grow in loose, fertile, slightly acidic or neutral sandy loam with good drainage. Light.
- Next
How to prevent cherry brown spot disease?
How to prevent cherry brown spot disease? Please introduce cherry brown spot disease, also known as cherry brown spot perforation disease, which is an important disease of cherry leaves. Japan and other countries have long reported. Cherry blossoms are common in all regions of China, Nanjing, Taiyuan, Tianjin, Shanghai, Chengdu, Xi'an, Suzhou, Jinan, Changsha, Lianyungang...
Related
- Fuxing push coffee new agricultural production and marketing class: lack of small-scale processing plants
- Jujube rice field leisure farm deep ploughing Yilan for five years to create a space for organic food and play
- Nongyu Farm-A trial of organic papaya for brave women with advanced technology
- Four points for attention in the prevention and control of diseases and insect pests of edible fungi
- How to add nutrient solution to Edible Fungi
- Is there any good way to control edible fungus mites?
- Open Inoculation Technology of Edible Fungi
- Is there any clever way to use fertilizer for edible fungus in winter?
- What agents are used to kill the pathogens of edible fungi in the mushroom shed?
- Rapid drying of Edible Fungi