What pesticides make the ground no grass, and after two years of use? 10

If there is a pesticide that can prevent grass from growing in the land and no longer grow within two years after use, it is paraquat. Generally, it is more common for baicao mushrooms to be used around railways.

Generally speaking, the best pesticides are glyphosate paraquat.

If you talk about this pesticide, it has very high residues, just like dichlorvos in the past, so it's banned now.

What kind of pesticides destroy land without leaving grass? There is no such insecticide. If diesel is used as a pesticide, if you sprinkle too much, there will be no grass.

You're talking about herbicides. The weeding mechanism of herbicides: After entering the plant through branches and leaves or roots, it is transferred to other parts of the plant, and finally discharged into the soil through the root system.

These chemicals don't just stay in the fields, they end up on people's dinner plates and into the human body. Herbicides are used in orchards, farmlands, and greening, and residual toxic substances can seep into the ground, pollute groundwater, and enter the groundwater and food chain.

Herbicides are pesticides that eliminate or control the growth of weeds, herbicides were first used to control downy mildew in European grapes, and Bordeaux liquid was found to be able to harm cruciferous weeds without harming cereal crops, herbicides became famous in 1961 to 1971 during the Vietnam War, Monsanto provided a large number of defoliants for the U.S. military - Agent Orange, the use of Agent Orange destroyed a large area of forests, rice fields and crop fields in Vietnam, creating a great advantage for the U.S. military, however, due to the invasion of Agent Orange, After the end of the war, Vietnam developed deformed children with mental retardation and mutilated limbs.

The types of herbicides are divided into incidising and selective. Weeds in yards, green roads and gardens are used to kill weeds, while weeds in farmland are selective, such as herbicides in corn fields and peanut fields, which only control weeds but not corn and peanuts.

There is generally no herbicide on the market that can guarantee that no grass will grow for three years. Herbicides are agents that kill weeds completely or selectively to eliminate or inhibit plant growth. Herbicides are divided into biocidal and selective herbicides according to their functions, and biocidal herbicides such as paraquat and glyphosate.

Selective herbicides such as Gauscan, Flulen, Promema, Simazine, etc.

Herbicides are toxic to all plants and can be damaged or killed if they come into contact with the green parts of seedlings and weeds. It is mainly used before sowing, before sowing and before emergence, and on the main and secondary roads of the nursery.

Selective herbicides can selectively kill some species of plants while harmless to others within a certain dosage and concentration range.

Summary. Hello, the herbicide is a glyphosate herbicide, the main component of which is glyphosate. Glyphosate is a non-selective herbicide that is effective in killing a variety of herbaceous plants and some woody plants.

The residual time of glyphosate in the soil is related to factors such as soil type, climate, and the amount of glyphosate used, and the half-life in the soil usually varies from a few weeks to several months. In soil, glyphosate gradually breaks down into its metabolites and is degraded by microorganisms. These metabolites have less impact on the environment, while glyphosate has a higher toxicity.

Therefore, when using glyphosate herbicides, attention should be paid to the method of use and dosage to avoid adverse effects on the environment. In addition to this, in order to reduce the impact of herbicides on the soil and the environment, weeding can be carried out using physical or biological methods. For example, physical methods such as manual weeding, mulching plants, and methods of biological control using microorganisms or plants.

In short, the residual time of herbicides in the soil is related to various factors, and it is necessary to pay attention to the dosage and method of use, and at the same time, we should try to use physical or biological methods to control <>

How long can the herbicide remain on the plant.

Hello, the herbicide is a glyphosate herbicide, the main component of which is glyphosate. Glyphosate is a non-selective herbicide that is effective in killing a variety of herbaceous plants and some woody plants. The residual time of glyphosate in the soil is related to factors such as soil type, climate response, and the amount of glyphosate used, and the half-life in the soil usually ranges from a few weeks to several months.

In soil, glyphosate gradually breaks down into its metabolites and is degraded by microorganisms. These metabolites have less impact on the environment, while glyphosate has a higher toxicity. Therefore, when using glyphosate herbicides, attention should be paid to the method of use and dosage to avoid adverse effects on the environment.

In addition, in order to reduce the impact of herbicides on the soil and the environment, weeding can be carried out by physical or biological methods. For example, physical methods such as manual weeding, mulching plants, and methods of biological control using microorganisms or plants. In short, the residual time of herbicides in the soil is related to various factors, and it is necessary to pay attention to the dosage and method of use, and at the same time, we should also try to use physical or biological methods to control weeds <>

The residual time of herbicides on plants will be affected by a variety of factors, such as air temperature, humidity, soil type, glyphosate use and use method. In general, glyphosate deficiency has a half-life in soil ranging from a few weeks to several months. However, it may remain on the plant for a longer period of time, sometimes for several years.

Therefore, if you need to use herbicides, it is advisable to choose organic or biological herbicides, or employ physical methods for weeding, such as manual weeding, mulch weeding, etc. These methods are not only harmless to the environment and human health, but can also promote the healthy development of soil ecosystems <>