Disease control of licorice
(1) Rust: there are yellow-brown scar spots on the back of the leaves when infected, and brown powder is scattered after the epidermis is ruptured, which is the summer spore pile of the pathogen, which forms a black-brown winter spore pile from August to September, resulting in withered and yellow leaves and shedding in severe cases. Control methods: increase the application of phosphorus and potassium fertilizer to improve plant disease resistance. Remove the sick and disabled body and burn it centrally. At the initial stage of the disease, 15% of the powder was sprayed with 1000 times of the solution, or 97% of the diazepam was sprayed with 400 times.
(2) Brown spot: damage to the leaves, the damaged leaves produce round or irregular disease spots. The edge of the spot is brown, the middle is red, and there are gray-black mildew on both sides of the spot. Prevention and treatment methods: clear the garden in winter and deal with sick and disabled bodies. At the initial stage of the disease, 65% mancozeb or 50% mancozeb was sprayed with 1500 times of 50% mancozeb, or 70% methyl topiramate wettable powder was sprayed with 100 Bordeaux solution.
(3) powdery mildew: if the injured leaves are sprinkled with a layer of white powder, the leaves turn yellow in the later stage, resulting in poor plant growth. Prevention and control methods: clear the garden to deal with the disease residue; use 1500 times of methyl topiramate wettable powder, or spray with 1000 times of 15% powder.
- Prev
Safe measures for mushroom sticks to survive summer
Safety of bacteria stick in summer management points outdoor summer. Outdoor shade shed ventilation is good, cooling fast, therefore, the use of outdoor shade shed bacteria can effectively reduce the occurrence of "bacteria burn". The concrete measures taken by using outdoor shade shed to grow bacteria in summer are as follows: firstly, planting vine crops such as pumpkin and melon on the periphery of shade shed to improve shade effect; secondly, installing automatic rotating tap water nozzle or spray pipe on the roof of shade shed to spray water for cooling from 10 a.m. to 4 p.m. every day; thirdly, digging 20 cm wide and 30 cm wide on the periphery of shade shed and both sides of aisle;
- Next
Techniques for high quality and high yield of licorice in large area
Field management 1. Intermediate ploughing and weeding: weeding should be done in time after the seedlings come out, so that there are no weeds in the field, three shovels can be carried out for ridge planting, and weeds should be pulled out for border planting. This is the key to high quality and high yield. If possible, herbicides can be closed before emergence after sowing, and the field is sprayed with 2 bags / mu of 2 bags / mu of wettable powder (20% chlorosulfuron) and 4 bottles / mu of Acetochlor. After emergence, the herbicide that kills monocotyledons can be sprayed to eliminate weeds. two。 Seedling setting: combined with weeding seedling height 3
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