What's with the peanut rolls?

Peanut is a very popular food and oil crops, in our country's market is very large. When we grow peanuts, peanut plants often have many problems affecting their growth. Peanut leaf rolling is one of them. Peanut leaf rolling not only affects the growth of plants, but also leads to a decrease in yield. So what is the cause of the peanut roll? How to prevent it? Let's take a look at it together with Xiaobian below!

1. Causes of leaf curl

There are many reasons for peanut leaf rolling, and the most common one is the damage caused by various pests. For example, leaf rollers, red spiders, etc., are the main pests that cause peanut leaf rolls. When planting peanuts, many growers will use some pesticides to prevent and control diseases and insect pests in order to do a good job. The improper use of pesticides, such as the use of some herbicides, dimethyl tetrachloromethane and other chemicals, will also lead to peanut leaf roll. Finally, the cause of the disease, scab disease after the onset of peanuts will first show the phenomenon of leaf roll.

2. Symptoms

Peanuts are very easy to see after the occurrence of leaf rolling, and the harmful object of leaf rolling is of course occurring on the leaves. After the leaves are damaged, many yellow-brown spots appear on the leaves, and the spots are accompanied by raised shapes. If the disease is more serious, then the affected leaves will appear smaller and narrower phenomenon, sometimes will also show curling and shrinking phenomenon, serious when the plant wilts off. The photosynthesis of leaves was seriously affected, resulting in insufficient accumulation of photosynthetic substances in peanut plants, and the yield and pod quality decreased.

3. Prevention and control measures

agricultural control

Peanuts are not suitable for continuous cropping, so we should pay attention to crop rotation. When rotating, it is best to carry out rice-paddy rotation, such as rice, which can effectively prevent leaf rolling. If it is dry land rotation, then crop rotation should be selected around soybeans, corn and other grains. When selecting peanut varieties, we should give priority to those with strong disease resistance to ensure the disease resistance of peanut plants. Before planting, soil improvement and fertilization should be done well to improve fully decomposed farm manure, improve soil, improve soil quality and reduce leaf rolling phenomenon.

chemical control

We often observe the growth of peanut plants, when found after the phenomenon of leaf roll. To spray the corresponding chemicals in time, for example, copper ammonia solution can be used to spray the diseased plants and healthy plants around the diseased plants, and the dosage of each plant liquid should be kept at about 250 grams. In the peanut growth period, can use peanut disease absolutely and other chemical spraying, about half a month or so once. And then do a good job of pest control work, such as leaf roller, thrips and so on. Can use dimethoate, imidacloprid and other important chemicals for spraying control, enhance the plant's ability to resist pests.

The above is a simple introduction to what is going on with peanut rolls. Today's introduction is here, this article is for reference only, I hope to help everyone oh!