Control methods of diseases and insect pests of Achyranthes bidentata

Achyranthes bidentata (Achyranthes bidentata) is a perennial herbal medicinal plant, which has high medicinal value, wide application and a wide range of planting, and its poor growth determines its quality and income. Therefore, the pest control work is extremely serious when planting. Let's take a look at its pest control work with the editor.

1. Root rot

Root rot disease is a kind of disease that harms the root system of the plant. When the disease occurs, the plant on the ground has no obvious change, the root system turns brown, shows a water stain, and gradually rots, and the aboveground plant begins to die gradually.

Prevention and control methods: the preventive measures of this disease are mainly by reducing the humidity in the field, paying attention to drainage in the rainy season, and using multi-bacterial lime milk to prevent and cure the disease, which has a good effect, but in the later stage of decay, there is no cure, only pulling out and taking it out of the field. and disinfect the disease.

2. Root nematode disease

Like root rot, it is also a disease that harms the root system. Nematodes will parasitize on the root system and produce nodular galls, which means that the root system loses the function of absorbing and transporting nutrients, which seriously affects the yield and quality. in serious cases, the plant will die due to lack of nutrients and water.

Control methods: reasonable rotation, reduce the harm of nematodes, before planting with methyl isathion evenly sprinkled on the soil, combined with ploughing, will be turned into the soil, disinfection and pest control effect is better.

3. Leaf spot

Leaf spot is a kind of bacterial disease, which mainly harms leaves and petioles. When the petiole occurs, there are a lot of water-stained round or polygonal disease spots, which gradually expand in the later stage, the disease spots become dark brown, and the petiole will wither and atrophy. Serious cases cause a large area of deciduous leaves.

Prevention and control methods: diseased leaves should be removed in time to avoid further spread of pathogens. When the plant is infected in a large area, Lvdebao suspension and Bordeaux solution can be sprayed every 10 days for 2-3 times.

4. Spodoptera litura

Spodoptera litura is an omnivorous pest. If it is not controlled in time, it will nibble away all the young parts of the plant, such as buds, leaves and buds, resulting in resistance to plant growth and leaf roll withering.

Control methods: when the larvae can be sprayed with trichlorfon and phoxim, once every 10-15 days, 2-3 times continuously.

The above is the introduction of the prevention and control methods of Achyranthes bidentata diseases and insect pests, hope to help you, want to know more related knowledge, please follow us.