A Detailed Guide to the Latest Pest and Disease Control Methods for Achyranthes bidentata
Achyranthes bidentata is a perennial herbaceous medicinal plant with extremely high medicinal value and wide applications. It is grown across a wide range, and how well it grows determines its quality and returns. Therefore, pest and disease control during cultivation is extremely important. Let us take a look below at its pest and disease control work.
1. Root rot
Root rot, as the name suggests, is a disease that harms the root system of the plant. When it occurs, the above-ground plant shows no obvious change, the root system turns brown and takes on a water-soaked appearance, gradually rotting, and the above-ground plant also begins to gradually wither and die.
Control method: The main preventive measure for this disease is to reduce field humidity and pay attention to drainage during the rainy season. When the disease occurs, drenching the planting holes with a Bordeaux mixture and lime can be used for control, with good results. However, once rotting has advanced in the later stages, there is no cure, and the plants can only be pulled out and carried out of the field, and the diseased holes must be disinfected.
2. Root-knot nematode disease
Like root rot, this is also a disease that harms the root system. Nematodes parasitize the root system, producing tumor-like galls, which cause the root system to lose its ability to absorb and transport nutrients, seriously affecting yield and quality. In severe cases, the plant wilts and dies due to lack of nutrients and water.
Control method: Practice reasonable crop rotation to reduce nematode damage. Before planting, evenly spread methyl parathion on the soil and, combined with plowing, turn it into the soil; the disinfection and pest-killing effect is good.
3. Leaf spot
Leaf spot is a bacterial disease that mainly harms the leaves and leaf stalks. When the leaf stalks are affected, many water-soaked round or polygonal spots appear, which gradually expand in the later stages, with the spots turning dark brown, and the leaf stalks also wither and shrivel, causing large-scale leaf drop in severe cases.
Control method: Promptly remove diseased leaves to prevent further spread of the pathogen. When a large area of the plant is infected, spray with Ludeobao suspension concentrate or Bordeaux mixture, once every 10 days, for 2-3 consecutive times.
4. Silver-striped noctuid
The silver-striped noctuid is an omnivorous pest. If not controlled in time, it will gnaw clean all the young and tender parts of the plant, such as tender buds, tender leaves and flower buds, causing stunted growth and curled, withered leaves.
Control method: During the larval stage, spray with trichlorfon or phoxim, once every 10-15 days, for 2-3 consecutive times.
The above is an introduction to the control methods for pests and diseases of Achyranthes bidentata. We hope it can help you. To learn more related knowledge, please stay tuned to us.