Common pesticides in vegetables

Growing vegetables needs fertile soil, and it is also easy to produce diseases and insect pests. If measures are not taken in time, the yield and quality will be affected. So, what are the common pesticides in vegetables?

What are the commonly used pesticides in vegetables?

1. Herbicides: bentazone, fine grass, etc.

2. Prevention and treatment of fungal diseases: metalaxyl, thiophanate methyl, carbendazim, chlorothalonil, mancozeb, triadimefon, etc.

3. Prevention and treatment of virus diseases: virus Ling, Ningnanmycin, Marinoguanidine Hydroxene gland, etc.

4. control of bacterial diseases: add rice and agricultural streptomycin

5. Insecticides: chlorpyrifos, Aktai, imidacloprid, avermectin, growth regulators: gibberellin, ethephon, abscisic acid, etc.

Second, how to grow pollution-free vegetables?

1. Environmental selection

The primary task of the cultivation of pollution-free vegetables is to choose a good planting environment to meet the production needs of pollution-free vegetables. The most important thing for the growing environment of pollution-free vegetables is to stay away from urban areas, factories and other pollution sources. To ensure that there is a good drainage and irrigation capacity, the water quality meets the planting requirements. The planting soil should be deep, soft, fertile and well-structured. The area of the soil should be controlled according to the planting scale, and the rotation can be guaranteed according to the planting variety. Then do a good job of soil preparation, improve the natural environment, and create a good growth environment for vegetables.

2. Planting management

Then we should choose a suitable planting variety according to the type of soil and planting area, and then select good seeds to disinfect the seeds. Control the sowing time and sow seeds at the right time to improve the growth ability of seedlings. Then according to the growth habits of vegetables to do a good job of planting management. Strengthen field management, carry out a series of work, such as ploughing, weeding, building and pruning, and so on. According to the weather changes and other humidity control, ventilation, or according to the requirements of vegetables on the environment, flexible adjustment.

3. Rational irrigation

The intensity and frequency of irrigation should be adjusted reasonably according to the type of soil and soil moisture. For example, the water retention capacity of sandy soil is relatively poor, so it should be watered frequently, while clayey soil needs to do a good job of drainage. Then irrigation should be carried out according to the weather and the growth of seedlings, with more watering in hot weather and less or no watering on the contrary. The leaves that are shiny and glowing can be watered less, while those who wither need more watering. However, no matter what vegetables are, they should not be watered at noon to prevent high temperature and humidity from causing diseases and insect pests.

4. Fertilization method

No matter what kind of vegetables you grow, you should apply enough base fertilizer, which is the key to ensure the healthy growth of vegetables. Base fertilizer is mainly based on rotten farm manure, but it is also necessary to choose good fertilizer types according to planting varieties, such as coriander, lettuce and so on. Then, although we should supplement nitrogen fertilizer properly when topdressing, we must pay attention to the amount of nitrogen fertilizer, not too much. Avoid excessive nitrogen fertilizer leading to excessive growth of vegetables, reduce field permeability, consume too much nutrition, but also lead to a decline in yield.

Vegetables are what we often eat, and it is best to cultivate them in a pollution-free way. If you need to apply pesticides, try to choose low-toxic pesticides, and choose the appropriate agents according to the variety and symptoms.