How long does it take to plant gynostemma after herbicide

Herbicides are agents that can cause weeds to die, and there are many varieties of herbicides. According to their range of action, they are classified as follows: (1) Selective herbicides:

It can be chosen to kill weeds and be harmless to other plants. (2) Biocidal herbicides: Toxic to all plants, as long as they come into contact with the green part, regardless of seedlings and weeds, they will be damaged or killed.

According to its mechanism: (1) Contact herbicides: the effect is local, only the part of the plant in contact with the agent dies, and can only kill the aboveground part of the weed, and the underground part or the perennial deep-rooted weed with underground stems is poor.

2) Systemic conductive herbicide: After the agent is absorbed by the root system or leaves, bud sheath or stem, it is conducted into the plant and dies. (3) Comprehensive herbicides:

It has both of the above functions. The chemical composition of herbicides is also more complex, with and without mechanical agents, as well as organic agents. It may be sprayed on the stems and leaves of weeds or on the soil.

It may be used alone, but it may also be mixed or alternated to improve the effectiveness of weeding. Therefore, herbicides can also cause damage to planted plants while removing weeds; The water solubility and decomposition cycle of herbicides are also different, and the residual time and amount of residues in the soil also vary from product to product. Therefore, it is not possible to generalize the question of "when can I plant seedlings after the herbicide is applied".

In order to plant after spraying herbicides, you should carefully read the product instructions before planting to understand its properties and confirm its effect on the plants that have been planted or will be planted (including short-term or long-term effects) before spraying. Due to the fact that there are many manufacturers of herbicides, the trade names are somewhat confusing, and it is necessary to avoid misuse; In addition, the amount of use is strictly controlled and the correct method of use is adopted. Otherwise, the gains may outweigh the losses.

This friend, gynostemma was only seen in April, and the wheat field is basically not suitable for spraying herbicides, and it will not cause harm to wheat! Corn field hazards are very easy to handle, you can choose nicosulfuron or glyphosate directional spray can be solved!! Personal opinion, for informational purposes only.

Summary. Hello! Herbicides can be closed before and after planting, mainly referring to crops before sowing (or before transplanting), or before crop sowing, soil spray treatment to close and kill unseeded weeds, corn field such herbicides include acetochlor amide, metolachlor, atrazine triazine, etc., can prevent a variety of annual grasses and some small-seeded broad-leaved weeds in the field.

The main ingredients of pre-emergence herbicides are "acetochlor and atrazine (atrazine)", and there are also alachlor, butachlor, metalachlor and other ingredients compounded with atrazine products.

Advantages: The soil is closed, and there is basically no pesticide harm to corn.

Disadvantages: It is greatly affected by the climate, especially in the case of drought, which often affects the weeding effect. In particular, the machine-harvested wheat stubble is too high, the straw coverage rate is high, and the amount of medicinal solution is insufficient for farmers, which directly affects the effect.

2. Corn post-emergence herbicides.

The herbicide spraying time after corn seedlings is the 2 5 leaf stage of maize, and the maize resistance is high at this time, and it is not easy to appear pesticide damage. 5 leaves before the whole field spray, 6 leaves after spraying, to lower the nozzle, around the corn stalks, to prevent the liquid irrigation caused by pesticide damage.

Due to drought and low temperature in the spring maize field in the north, the maize grows slowly, and the weeds emerge unevenly, and when the weeds emerge from the seedlings, the maize has exceeded the 5-leaf stage. Yes.

Whether the herbicide is applied before or after planting.

Hello! Herbicides can be closed before and after planting, mainly referring to crops before sowing (or before transplanting), or before crop sowing, soil spray treatment to close and kill unseeded weeds, corn field such herbicides include acetochlor amide, metolachlor, atrazine triazine, etc., can prevent a variety of annual grasses and some small-seeded broad-leaved weeds in the field. The main ingredients of pre-emergence herbicides are "acetochlor and atrazine (atrazine)", and there are also lead punch products with alachlor, butachlor, metalachlor and other ingredients.

Advantages: The soil is closed, and there is basically no pesticide harm to corn. Cons:

It is greatly affected by the climate, especially in the case of drought, which often affects the effect of weeding. In particular, the machine-harvested wheat stubble is too high, the straw coverage rate is high, and the amount of medicinal solution is insufficient for farmers, which directly affects the effect. Second, corn post-emergence herbicide corn post-emergence herbicide spraying time is corn 2 5 leaf stage, at this time corn resistance is high, it is not easy to judge the poor pesticide damage.

5 leaves can be sprayed in the whole field, 6 leaves after spraying, to lower the nozzle, around the corn acacia Qing spray, to prevent the liquid medicine irrigation caused by pesticide damage. Due to drought and low temperature in the spring maize field in the north, the maize grows slowly, and the weeds emerge unevenly, and when the weeds emerge from the seedlings, the maize has exceeded the 5-leaf stage. Yes.

The effect of the second application is not good, and the use of nicosulfuron is easy to produce drug damage; Applying pesticides too early or too late is easy to cause pesticide damage. If there is no pesticide application or the soil sealing effect is not good during this period, you can choose bright residue and choose to use post-seedling herbicides to spray the stems and leaves of the weeds that have emerged from the seedling hall to quietly prevent them, and the control effect is OK.

Summary. Key points for the use of nicosulfuron.

1) When using, it should be diluted twice.

When spraying, the agent must be diluted twice, and it is strictly forbidden to pour the herbicide directly into the barrel to prevent pesticide damage due to large concentration.

What herbicide can kill gynostemma.

Hello: The following two herbicides can basically eliminate gynostemma! Nicosulfuron + 2 methyl4 chloro, chlorofluoropyroacetic acid, it is recommended to buy it and try it!

Glyphosate is also possible, but the area is relatively wide and the harm is relatively large! It's better not to use it! So it is recommended to use both of the above! Specifically, I hope it can help you!

Are you sure it works?

How to use. Can you be specific?

Because I have other crops in my field, I can't spray them.

Key points of use of nicosulfuron (1) When using, when the agent is to be diluted twice, the agent must be diluted twice, and it is strictly forbidden to pour the herbicide directly into the barrel to prevent pesticide damage due to large concentration.

The weather looks a bit dry and requires more water use.

Wait until mid-afternoon to apply herbicides.

Otherwise, the temperature is too high to fight and it will not be of much use.

If there are other crops, it will be more troublesome, and if you can't control it, you will kill that corn as well.

You can lightly spray a little insecticide away from the corn seedlings, not too much.

To prevent gynostemma, benzsulfuron and sulfafen can be used.

Sulfafen, is an organic chemical, white or off-white powder.

Dosage form: 25% aqueous solution.

Features: It is a highly selective post-emergence herbicide in soybean and peanut fields, which can effectively control broad-leaved weeds and aconite in soybean and peanut fields, and also has a certain control effect on gramineous weeds. It can be absorbed by the roots and leaves of weeds, so that it dies quickly, and the rain does not affect the efficacy of the medicine 4 to 6 hours after spraying, and has no adverse effect on soybeans.

Scope of application: suitable for soybean and peanut fields to control and remove hemp, iron amaranth, trifolium, amaranth, ragweed, rape, camellia, quinoa, duck plant, nightshade, schizophylla, corn grass, plaque, Pennsylvania polygona, purslane, amaranth, cassia, ground brocade grass, pig disaster, water acanthus, sorrel, field art, endive, tribulus terrestris, axle grass, nettle, Pennsylvania acanthus, Xanthium and other broad-leaved weeds. It can also be used in orchards and rubber plantations to control broadleaf weeds.

How to use When 1 to 3 compound leaves after soybean seedlings and 1 to 3 leaves of weeds, 68 to 132 ml of 25% water agent per mu, 20 to 30 kg of water, evenly spray weed stems and leaves. It is better to add an appropriate amount of non-ionic surfactant to the liquid medicine.

Notes:1Sulfafen has a long effective period in the soil, and if the dosage is high, it will cause different degrees of pesticide damage to cabbage, millet, sorghum, sugar beet, corn, millet, flax, etc. planted in the second year.

At the recommended dose, not ploughing corn and sorghum have a mild effect. The dosage should be strictly controlled, and safe crops should be selected.

2.For use in the orchard, never spray the liquid onto the leaves.

3.Sulfafen has no pesticide harm to soybeans, but has adverse effects on corn, sorghum, vegetables and other crops.

4.If the dosage is large or applied at high temperatures, soybeans or peanuts may produce burning spots, and under normal circumstances, they can resume normal growth after a few days without affecting the yield.

5.The drug has a long residual period in the soil, will not be passivated in the soil, can remain active for several months, and is absorbed by plant roots, and has a certain residual weeding effect. Normal application will not cause pesticide damage to the stubble, but the application amount is too large, which will have a negative impact on the stubble crops such as cabbage, wheat, sorghum, corn, sugar beet, flax, etc.

After application, soybean leaves will have wilted spots, but they will return to normal after a week, and will not affect the later growth.

Summary. Hello dear, it usually takes 3-5 days after the herbicide is used before you can grow vegetables. If it rains in the middle, it can be shortened by 2 days.

Herbicides are mainly used to control weeds in farmland, and herbicides should be selected according to weed varieties. When spraying herbicides, you should also pay attention to the method and spray strictly according to the instructions. If it rains after the use of some drugs, it will affect the efficacy of the drug, and it should be sprayed in time.

Hello, I'm inquiring for you, please wait a while, I'll reply to you right away Hello, I've seen your question Ha Beibi Now I'm manually replying to the content for you, but it takes a little time, please wait patiently, thank you for being a little bit of a good luck in the Year of the Tiger

Hello dear, it usually takes 3-5 days after the herbicide is used before you can grow vegetables. If it rains in the middle, it can be shortened by 2 days. Herbicides are mainly used to control weeds in ruined farmland, and herbicides should be selected according to weed varieties.

When spraying herbicides, you should also pay attention to the method and spray in strict accordance with the instructions. After the use of some medicines, if it rains, it will affect the efficacy of the shed, and it should be sprayed in time.

Seed plate blue root, pre-seedling herbicide or post-seedling.

Hello dear, the seedling queen is better oh dear.

Bensulfuron can prevent gynostemma, and gynostemma root removal can also use 30-40ml of 10% carboxboxylfluorfen, or 40-50ml of 25% sulfafen diluted with water for foliar spraying.

Gynostemma is also called horse chestnut, five-leaf ginseng, horse chestnut, small bitter medicine, etc., many wild in the forest, creek and other shady places, in addition to being able to make tea, can also be used as medicine, in addition to anti-inflammatory and detoxification, cough expectorant effect, but in the actual cultivation process, pests and diseases are very threatening plant growth, specific prevention and control introduction:

Powdery mildew: At the onset of the disease, small white mold spots will appear on the leaves, and then spread to form large mold spots, and in severe cases, the leaves will turn yellow and curl.

Control measures: strengthen fertilizer and water management, enhance plant immunity, timely uproot diseased plants, and use methyl tobuzin solution for prevention and control in the early stage of the disease.

Leaf spot: At the onset of the disease, water-stained lesions appear on the tips or edges of the leaves, and in severe cases, the entire leaves of the plant will rot and fall off, resulting in the death of the plant.

Prevention and control measures: strengthen fertilizer and water management, enhance disease resistance, in winter to achieve a thorough clearance, reduce pathogenic fungi, when the disease is onset, it is necessary to spray carbendazim and Bordeaux liquid in time for prevention and control.

Ground tiger: The larvae constantly eat the young parts of the leaves, so that the plant grows poorly, resulting in a lack of seedlings.

Prevention and control measures: In winter, the garden should be completely cleared, the overwintering larvae and insect pupae should be eliminated, the adults should be trapped, and the larvae should be poisoned with poisonous bait at the seedling stage.