Controlling pests and diseases is conducive to the growth of crops, how to control pests and disease

When planting crops, it is very important to control crop pests and diseases, and pesticide management can be carried out to prevent pests and diseases.

The selection of crop varieties resistant to diseases and insect pests and the strengthening of agricultural production management can effectively improve agricultural production efficiency and crop disease and pest resistance ability. However, in order to improve economic efficiency, some farmers even choose seeds and seedlings that do not have the ability to resist pests and diseases and have low cost, and do not carry out effective pest treatment before sowing. Some planters do not pay attention to the occurrence of pests and diseases, use a large number of chemicals, and do not remove the damaged plants in time, resulting in an increasing range of pests and diseases.

Physical control mainly inhibits pests through human operation and physical factors, and the most commonly used is the hunting method, which captures and kills insects in a specified range through manpower; The booby-trap method concentrates the pests at a certain point through the characteristics of the pests themselves, and then realizes large-scale extermination; The avoidance method is to control the characteristics of pests, such as aphids have yellowing properties, and the yellow plate of armyworms can be used to trap and kill aphids; Seed removal and soaking treatment, which is a method of removing the main pathogens in seeds according to the difference in appearance between healthy seeds and pest and disease seeds, the most common ones are elimination, screening and winnowing.

The use of physical control methods, biological control methods can also be used, and chemical control methods can be adopted, which are conducive to the growth of crops.

The quality of the seeds should be very high-quality, the soil should be very fertile, the base fertilizer should be applied, and the nutrient solution should be sprayed, and the poison should be sprayed, so that pests and diseases can be controlled.

There are many methods of agricultural pest control, and the following are five commonly used methods:

1.Biological control:Natural biological control agents such as natural enemies, parasites or pathogenic bacteria are used to control the pest.

For example, the introduction of beneficial insects such as natural enemy insects, the addition of parasitic nematodes to the soil on plants, and the use of microbial insecticides.

2.Ecological regulation:By adjusting the ecosystem and planting structure, improving the stability of the farmland ecological environment, increasing the density and diversity of beneficial insect populations, and reducing the number of pests.

For example, flowers and herbaceous plants are planted to attract beneficial insects, and measures such as crop rotation and intercropping are employed.

3.Agronomic measures:Reduce the breeding and reproduction of pests through reasonable farmland management practices. For example, reasonable fertilization, precision sowing, intercropping, tillage and other measures to reduce the food ** and habitat conditions of pests.

4.Chemical control:Chemical pesticides are used to eliminate pests. Pesticides are an effective pest control method, but they should be used rationally and follow safe operating procedures to avoid adverse effects on the environment and the human body.

5.Physical control:Use physical means to control pests.

For example, traps, non-toxic yellow sticky insect boards, sticky insect balls, etc. are used to trap pests, and physical methods such as high temperature, low temperature, electric current, light, etc. are used to control pests.

The selection and combination of spring dressing and closing methods of different pest control methods need to be comprehensively considered in combination with specific pest species, crop types, environmental conditions and other factors. In practice, a combination of methods is often used to improve the effectiveness of pest control and reduce the use of chemical pesticides. At the same time, monitoring and early warning are also needed to detect the presence and development of pests in time so that corresponding control measures can be taken.

FYI.