What's going on with the latest peanut rolls?

Peanut is a very popular grain and oil crop, which is very large in the market of our country. When we plant peanuts, there are often many problems affecting the growth of peanut plants. Peanut leaf roll is one of them, peanut leaf roll will not only affect the growth of the plant, but also lead to a decline in yield. So what is the cause of peanut leaf curling? How to prevent and cure it? Let's take a look at it with the editor.

1. The reason for rolling leaves

There are many reasons for the curling of peanut leaves, and the most common one is the harm caused by various insect pests. For example, leaf curlers and red spiders are the main pests that cause peanut leaf curls. When planting peanuts, many growers will use some pesticides in order to do a good job in pest control. Improper use of pesticides will also lead to peanut leaf curling, such as the use of some herbicides, dimethyl tetrachloride and other chemicals. Finally, there is the cause of the disease. Peanuts will first show the phenomenon of rolling leaves after the onset of scab.

2. Symptom manifestation

Peanuts after the occurrence of leaf curling is very easy to see, the harm of rolled leaves of course occurs on the leaves. After the damage to the leaves, there will be many yellowish-brown spots on the leaves, and the spots will be accompanied by protuberances. If the disease is more serious, then the damaged leaves will become smaller and narrower, and sometimes will show curling and wrinkling, and in serious cases, the plants will wither and fall off. Seriously affect the photosynthesis of leaves, resulting in insufficient accumulation of photosynthetic matter in peanut plants, yield and pod quality will be decreased.

3. prevention and control measures

Agricultural prevention and control

Continuous cropping of peanuts is not suitable, so we should pay attention to doing a good job of rotation. During crop rotation, it is best to carry out flood-drought rotation, such as rice, which can effectively prevent leaf curling. If it is dry land rotation, then rotation crops should choose grains such as soybeans and corn. When selecting peanut varieties, it is necessary to give priority to those with strong disease resistance to ensure the disease resistance of peanut plants. Before planting, we should do a good job of soil improvement and fertilization, improve fully mature farm manure, improve soil quality, and reduce the phenomenon of leaf curling.

Chemical control

We should often observe the growth of peanut plants, when the phenomenon of leaf curling is found. The corresponding agents should be sprayed in time, for example, copper ammonia can be used to spray the diseased plants and the healthy plants around the diseased plants, and the dosage of each plant should be kept at about 250 grams. In the peanut growing period, you can use peanut disease and other medicament spraying, about half a month or so once. Then it is necessary to do a good job in pest control, such as leaf borer, thrips and so on. Dimethoate, imidacloprid and other important agents can be used for spraying to enhance the plant's ability to resist diseases and insect pests.

The above is a brief introduction to what is going on with peanut curls. That's all for today's introduction. This article is for reference only. I hope it can help you all.