How to do a good job in pest control of konjac

Many friends of konjac think it is taro, but it is not. Generally speaking, a dish similar to jelly can be found in hot pot restaurants. It has a very high nutritional value, it can not only be used for food, it has the effect of promoting blood circulation and removing blood stasis, relieving intestines and defecation. It can also be used for papermaking in industry, which is more important for us. However, many friends will have a series of diseases and insect pests due to poor management when planting, so how can we do a good job in pest control of konjac? Details are as follows:

1. Select superior species

Choosing a good variety is the best control method, or disinfect the taro before planting. This can effectively reduce pathogens, prevent the spread of pathogens, and choose seeds that grow well, without decay and without wounds. Because most of the diseases and insect pests are infected through the wounds of taro, soaking and drying seeds are carried out after seed selection to eliminate the bacteria lurking in taro and reduce the incidence of disease.

2. Not suitable for continuous cropping

After investigation, it is found that the places with high incidence of diseases and insect pests are generally on the land of some old growers, mainly because there is no rotation, resulting in a better and better breeding environment for bacteria and insect eggs, and its incidence has increased. Planting konjac needs at least more than three years of rotation, and the crop rotation is not suitable for crops such as konjac and eggplant. Gramineae crops can be selected, which can effectively reduce the incidence of disease.

3. Soil disinfection

Most of the germs and eggs will cling to the soil to survive the winter, and when the temperature gradually picks up in spring, the change begins to invade the konjac. Therefore, after harvest, the soil should be ploughed and disinfected in time, and the fallen leaf branches and diseased branches should be disposed of so as to destroy the bacteria overwintering. And before sowing in the second year, the soil should also be disinfected to eliminate the remaining bacteria and eggs, so as to provide a safe and healthy environment for the growth of konjac.

4. Reasonable topdressing

The yield of konjac is high, so the demand for fertilizer and water is also very large, so we should pay attention to the application of farm manure when topdressing. Konjac is different from other crops, its demand for potash fertilizer is greater than nitrogen fertilizer, so it is necessary to reasonably prepare fertilizer according to the fertilizer demand of konjac to ensure the nutrient balance of fertilizer. The application of farm manure must be fully mature, otherwise it will lead to rotten roots and affect the growth of konjac, and all kinds of straw and leaf branches can be turned into the soil to supplement soil fertility.

5. Field management

Reduce the number of pathogens in the field, clear out all the disease residues and fallen leaves in the field, and deal with them far away from the taro field. No matter in which growing season, it is necessary to plant the cleaning work of diseased bodies, and do not let any germ-carrying substances remain in the field. And in time to pull out weeds in the field, weeds will also cause a lot of diseases and insect pests, weeds can also promote the growth of konjac, concentrate nutrients.

The above is a brief introduction to the work of diseases and insect pests of konjac. Although the economic benefit of konjac is high, its value is considerable in order to achieve high yield. However, diseases and insect pests are the main reason for endangering the yield of konjac, so in order to achieve high yield, pest control is necessary. I hope you will plant it, and that's all for today's introduction. This article is for reference only. I hope it can help you.