What are the common diseases of rich trees and how to effectively control them?

The name of the rich tree is deeply loved by the general public, with beautiful shape, bright green leaves and hammer-shaped trunk, and the potted plant is suitable for home layout and beautification, so it has developed rapidly in the flower market of our country. Therefore, the farming network has sorted out the prevention and control methods of the common diseases of rich trees, which are listed in detail below for your reference.

Prevention and control methods of root (stem) rot of rich trees:

First of all: keep the cultivation environment of the rich tree dry and pay attention to the disinfection of the cultivation medium and site.

Secondly: the semi-finished wealth tree was sprayed with Sukeling before transplanting to prevent the harm of Botrytis cinerea.

Third: cut off the sprained and rotten tissue at the top of the main root with a sharp knife before planting the rich tree, then spray the wound with Sukeling, and then plant it after drying.

Fourth: after the rich tree is planted for a week, the medium in the basin dries gradually, the healing tissue has been formed, and the new root has begun to grow. It is appropriate to spray the smooth rod of the rich tree with pluck, Anke or zinc and manganese (Redomir-manganese zinc). It is appropriate for the liquid to flow into the basin soil along the pole. Since then, fungicides have been rotated once a week with Anke, carbendazim, Redomir or carbendazim.

Fifth: if the disease occurs in the cultivated rich tree, it will be sprayed with Prik, carbendazim, Redomir or Phytophthorin, and the general effect will be about two weeks. If the weather is still bad, different chemicals should be sprayed to prevent the development of drug resistance. If festering plants are found during this period, they should be discarded immediately.

Prevention and control of leaf blight of rich trees:

First of all: if diseased leaves are found on the rich tree, they should be removed and destroyed in time.

Secondly, in the process of rich tree cultivation, maintenance and management should be strengthened, timely watering and fertilization, foliar fertilizer can be applied for 2-3 times in each growing season, such as 0.5% potassium dihydrogen phosphate or 200 times of double-effect micro-fertilizer.

Third: when the rich tree seedlings are loaded and transported, the leaves should be sprayed with protective fungicides, such as 70% chlorothalonil 800 times, or 18% multi-bacteria copper milk powder 200 times, or 50% bacillus 600 times. Rich tree seedlings should be planted in time to strengthen fertilizer and water management to prevent dehydration and fattening.

The wealth trees planted should be sprayed with 50% carbendazim 800x solution, or 70% chlorothalonil 800x solution, 75% methyl topiramate 1500 times solution every 10-15 days.

The above is about the cultivation techniques of the rich tree. I hope it can help you. Please pay attention to Huinong School for more details.

Common diseases of rich trees and their control

Rich tree palm-shaped leaves, leaflets 7-11, oblong to Obovate. There are horticultural varieties, flowers and leaves, rich trees. Because the name of the rich tree is welcomed by businessmen and the general public, with beautiful shape, bright green leaves and hammer-shaped trunk, it is suitable for layout and beautification at home, so it has developed rapidly in China's flower market in recent years. During festivals, hotels, restaurants, businesses and citizens scramble to buy more for good luck.

In the growing season, the rich tree is prone to red spiders and shell insects if it is poorly ventilated, which should be observed. Insect pests should be caught or sprayed in time.

The common diseases of rich trees are root rot and leaf blight.

1. Root (stem) rot, which is a common disease that seriously harms rich trees, also known as rot. Prevention and control methods:

(1) keep the cultivation environment dry and attach importance to the disinfection of cultivation media and sites.

(2) after the semi-finished products are unloaded into the operation shed, the head of the wealth tree is sprayed with Sukeling to prevent the harm of Botrytis cinerea.

(3) cut off the sprained and rotten tissue at the top of the main root with a sharp knife before planting, then spray the wound with Sukeling, and plant it after drying.

(4) after a week of planting, the medium in the basin dries gradually, the healing tissue has been formed, and the new root has begun to grow. It is advisable to spray the smooth rod of the wealth tree with pluck, Anke or zinc and manganese (Redomir-manganese zinc) to flow into the basin soil along the pole. Since then, fungicides have been rotated once a week with Anke, carbendazim, Redomir or carbendazim.

(5) if Pythium is active, it should be sprayed with Pulek, carbendazim, Redomir or Phytophthorin, and the general effect is about two weeks. If the weather is still bad, different chemicals should be sprayed to prevent the development of drug resistance. If festering plants are found during this period, they should be discarded immediately.

2. Control methods of leaf blight:

(1) remove the diseased leaves in time and destroy them

(2) the maintenance and management of rich trees should be strengthened in the process of cultivation, timely watering and fertilization, and foliar fertilizer can be applied for 2-3 times in each growing season, such as 0.5% potassium dihydrogen phosphate or 200 times of double-effect micro-fertilizer.

(3) before the seedlings are transported from the south to the north, protective fungicides are sprayed on the leaves, such as 70% chlorothalonil 800 times, or 18% multi-fungus copper milk powder 200 times, or 50% bacillus 600 times. After being transported to the north, it should be planted in time, strengthen fertilizer and water management, and prevent dehydration and de-fatting. Starting from the rainy season, the cultivation of rich trees in the south can be sprayed with 50% carbendazim every 10-15 days, or 70% chlorothalonil and 1500 times methyl thiophanate. In addition, the main pest is the sugarcane flat moth, which is a new record in China, mainly because the larvae harm the rich tree, but also to poinsettia, flutunium and goose palm wood.

Rich tree, many people come from a certain name, while planting a good rich tree, we should also pay attention to its disease control, in accordance with the above disease control measures, can effectively prevent the rich tree from being attacked by the virus.

Prevention and control of common diseases of rich trees

1. Root (stem) rot

Symptoms: the stem base to the root becomes dark brown and rotten, and the young leaves lose their vitality and wither.

Prevention and control methods: (1) timely ventilation to keep the cultivation environment dry. (2) pay attention to the disinfection of cultivation substrate and flowerpot. (3) after transplantation, the sprained and decayed tissue at the top of the root was removed, and then the wound was sprayed with Sukeling, dried and planted. (4) in the early stage of the disease, the aboveground part was sprayed with 1000 times of 50% carbendazim wettable powder or 70% methyl topiramate wettable powder every 10 days, and the underground part was irrigated 2 to 3 times with 70% mancozeb wettable powder. 5. If the rot mold is active, it can be sprayed with Pulek, carbendazim, carbendazim and so on.

2. Leaf blight

Symptoms: dark brown in the initial stage, gray or dark brown spots like sunburn symptoms inside, and black powder can be seen on the spots for a long time.

Prevention and treatment methods: (1) diseased leaves should be removed and destroyed in time. (2) strengthen maintenance and management, timely watering, fertilization, each growing season can be topdressing 2 to 3 times foliar fertilizer, such as 0.5% potassium dihydrogen phosphate or double-effect micro-fertilizer 200 times. (3) at the initial stage of the disease, use 75% chlorothalonil wettable powder or 50% carbendazim wettable powder or 1500 times methyl thiophanate wettable powder.