The Latest Technical Methods and Tutorial for the Prevention and Control of Pests and Diseases in Atractylodes macrocephala
Atractylodes macrocephala, also known by the aliases Fuji and Yuzhu, has a rhizome that can be used as medicine, with the effects of strengthening the spleen and boosting qi, drying dampness and promoting diuresis, stopping sweating, and calming the fetus. It is cultivated on a large scale in Hunan, Jiangxi, Hubei and Hebei. As its cultivation benefits grow better and better, the harm from pests and diseases is also becoming increasingly serious. Now let us take a look together at the pest and disease prevention and control techniques for Atractylodes macrocephala.
1. Root rot
After Atractylodes macrocephala becomes infected, the roots turn yellowish-brown, then become brown, shriveled and dry, and spread to the entire root system within a short time. The pathogen can also infect through the top of the rhizome or other damaged parts. After the rhizome is infected, there are no obvious external symptoms in the early stage; in the later stage, the epidermis separates from the rotted fleshy part, leaving only woody fibers and debris, causing the above-ground plants to wither and die.
Prevention and control methods: practice reasonable crop rotation, apply sufficient base fertilizer, improve the disease resistance of the plants, and disinfect and sterilize the soil. When the disease occurs, a carbendazim solution can be used for watering.
2. Southern blight
This disease mainly harms the stem base and fruit. When the plant is infected, yellowish-brown soft rot appears at the stem base, and the leaves turn yellow and wither, in severe cases drooping and dying. When humidity is high, the mycelium spreads to the roots and produces sclerotia, in severe cases causing the base of the plant to rot and the above-ground stems and leaves to wither and die. When the fruit is infected, soft rot appears, and white silky mycelium with small sclerotia develops at the affected area.
Prevention and control methods: choose plots with higher terrain and a lower groundwater level for planting, disinfect the soil with lime when preparing the land, and when the disease occurs, mix triadimefon with soil and scatter it on the root and stem area.
3. Green leafhopper
The green leafhopper is distributed throughout the country. Its feeding habits are rather varied; adults and nymphs gather on the leaves and continuously suck the leaf sap, causing small white spots to appear on the leaves, and in severe cases causing the leaves to lose their green color, leading to weakened plant growth.
Prevention and control methods: promptly clean the field after harvest, clearing away weeds and diseased plant debris. At the same time, avoid intercropping or relay cropping with legumes and cruciferous plants. During the peak period of pest damage, fenvalerate emulsifiable concentrate can be sprayed for control.
4. Aphids
Aphids are a pest of many plants. They have strong reproductive capacity and can reproduce more than 10 generations per year. The eggs overwinter on the undersides of leaves, stems and rhizomes of the host plants. After the temperature warms up the following year, they begin to hatch in large numbers, gather on the young and tender parts of the plants, and continuously suck sap. Brown small spots appear on the damaged areas, seriously affecting the growth and development of the plants and leading to severe yield reduction.
Prevention and control methods: sow early at the appropriate time, choose insect-resistant varieties, and during the bud stage, imidacloprid and pirimicarb can be sprayed for control.
The above is an introduction to the pest and disease prevention and control techniques for Atractylodes macrocephala. We hope it can help you. If you want to learn more related knowledge, please stay tuned to us.