What Causes Peanut Seedling Death? Cause Analysis and Control Methods

Peanut is an important oilseed crop in China with high economic value, and with the continuous development of cultivation, the planting area of peanut is also growing larger and larger. However, during planting, the phenomenon of seedling death often occurs, seriously affecting peanut yield, and in severe cases leading to total crop failure for farmers. The phenomenon of peanut seedling death seriously affects peanut production. So what are the causes of peanut seedling death? How should it be controlled? Let's take a look together.

1. Seed problems

The seeds purchased at sowing time are of poor quality, such as old seeds or rotten seeds, or during storage, because the storage environment is unsuitable, the seeds become moldy or are gnawed by rodents, resulting in poor emergence of peanut seedlings. Some do not emerge at all. Those that do emerge are weak and gradually die later on.

Control method: Buy seeds from legitimate manufacturers. When purchasing, be sure to check the production date and the quality of the seeds. If using self-saved seeds, carefully select the seeds, choosing those that are larger in size, undamaged and free of mold.

2. Continuous cropping and repeated cropping

In some areas, because peanut is planted year after year and the planting area is limited, no crop rotation measures are carried out. Years of continuous cropping lead to a serious repeated-cropping situation, which results in more pathogens in the soil, and these have extremely strong resistance to chemicals, making them very difficult to control, thus causing peanut seedling death.

Control method: Carry out reasonable crop rotation and alternation. Peanut can be rotated with soybean, corn and wheat for 2-3 years before continuing to plant peanut, which can reduce the phenomenon of seedling death.

3. Diseases

Disease is the main cause of peanut seedling death. The diseases that cause peanut seedling death include root rot, stem rot, bacterial wilt and so on. In the early stage, these diseases cause the seedlings to gradually turn yellow, and as the disease develops, they eventually die.

Control method: Before planting, disinfect and dress the seeds to eliminate the pathogens carried by the seeds. Before planting, the soil can also be disinfected once during land preparation. When disease occurs, spray chemicals promptly for control, so as not to miss the best treatment time and cause seedling death.

4. Insect pests

As with diseases, the main cause of peanut seedling death is underground pests, such as white grubs. This is a pest that causes damage over large areas, mainly lurking underground and continuously gnawing at the seedling root system, causing seedling death. If the seedlings do not die, the pest will also gnaw the pods clean in the later stage.

Control method: Before planting, plow the soil deeply to turn out the underground pests and eggs, use the sun to dry them to death, then spread lime powder, water thoroughly once, and use ground covering over the entire ground. The edges of the plastic film should be buried in the soil, causing the pests to die from lack of oxygen. When the pest infestation is severe, use chemicals to drench the roots for control.

5. Chemical injury

When controlling diseases, pests or weeds, improper use of chemicals can also cause seedling death. Herbicides are one of them. The seedlings first turn yellow, then gradually wither and die, and some also have scorched leaves.

Control method: There is no special solution for chemical injury. Only the reasonable and standardized use of chemicals...

The above are the causes and control methods of peanut seedling death. We hope this can help you. If you want to learn more about peanut cultivation knowledge, please stay tuned to us.