Control methods of diseases and insect pests of Anemarrhena anemarrhena

Anemarrhena anemarrhena perennial herb is a kind of traditional Chinese medicine, which is cultivated all over the country. It has strong ability to resist drought and cold, can grow normally in arid desert and wasteland, and has strong vitality. However, in the process of cultivation, because of improper management, diseases and insect pests are rampant, seriously affecting its growth, yield and quality. Let's take a look at its pest control methods with the editor.

1. Leaf spot

The disease mainly harms the stem and leaves, the leaves appear round disease spots, slightly sunken, with the development of the disease, the disease spots will appear a large number of conidia, the disease spots gradually become black or dark brown, and finally lead to leaf death. After the disease of the stem, the stem will become thinner, and when it is serious, it will cause the stem to rot and lodge, and the disease is more serious in the high temperature season.

Prevention and treatment methods: select the disease-free root before planting, soak and disinfect with disinfectant before planting, strengthen field management, timely drainage, reduce humidity, spray Bordeaux solution or mancozeb agent to prevent and cure the disease.

2. Virus disease

Is a whole-plant disease, the disease mainly starts from the leaves, the first yellow-green flowers and leaves, the leaf surface is uneven, accompanied by black disease spots, resulting in early leaf death, plant dwarf, serious will lead to the whole plant dry death.

Control methods: select varieties with strong disease resistance, do a good job in pest control measures, so as not to spread diseases, strengthen fertilizer and water management, increase the application of phosphorus and potassium fertilizer, and strengthen the disease resistance of plants. When the disease occurs, pull out the diseased plants in time, take them out of the field and burn them, disinfect the disease points, and spray insecticides to control the surrounding plants.

3. Soft rot

The disease mainly harms the rhizome, according to the occurrence of brown waterlogged spots, and then gradually blacken, the spots will gradually soften until rot, there will be purulent mucus outflow in the humid environment, accompanied by stench.

Prevention and control methods: pay attention to drainage measures in the rainy season, reduce the groundwater level and field humidity, soak the seeds with diluted carbendazim solution for half an hour before sowing, which can effectively prevent and cure the disease.

4. Insect pests

The main pests of Anemarrhena asphodeloides are grubs and aphids, grubs mainly eat the roots of plants, resulting in root rot and gradual death of plants, while aphids gather in leaves and constantly dilute leaf sap, which in serious cases lead to leaf death, affecting plant photosynthesis and reducing the rate of nutrient synthesis.

Control methods: grubs can be irrigated with trichlorfon and aphids can be sprayed with dimethoate.

The above is the introduction of Anemarrhena anemarrhena's pest control methods, hope to help you, want to know more related knowledge, please follow us.