What are the commonly used herbicides for banyan weeding

This friend usually does not have a specific herbicide, and usually uses a biocidal herbicide or a field crop herbicide depending on the type of weed. When using biocidal herbicides, as long as the windless conditions are ensured, directional spraying can be implemented, and the pesticides should not be sprayed on the tender parts, especially systemic herbicides such as Roundup (glyphosate). Some of these agents are purchased with a plastic cover on the head of the sprayer to prevent spraying onto the tree.

There are many kinds of weeds in eucalyptus woodlands, such as thatch, miscanthus, ferns, rattans, miscellaneous trees, etc., selective herbicides are definitely not enough, and it is necessary to use broad-spectrum, efficient and long-lasting herbicides.

If the grass is beaten twice a year, the grass does not grow very old, and a single dose of glyphosate ammonium salt is enough, and most of the grass can be killed. If the weeds in the eucalyptus woodland have not been beaten for a long time, it is recommended to use 32% glyphosate or 41% glyphosate ammonium salt produced by regular manufacturers (glyphosate content 41% instead of glyphosate content 30%), choose thick glyphosate will be better for iron mangate, zongye mango and five-section mang, because the surface layer of these grasses is so thick, and it is difficult for the general glyphosate on the market to kill these grasses. If you don't know what manufacturer of glyphosate to buy, you can go to the forest farm and ask the forest staff of the forest farm, many of them know.

I specially asked for a picture for you, I hope so, thank you!

Diagram of herbicidal drugs used in eucalyptus woodland.

Eucalyptus weeding is generally selected in the following ways:

1.Generally, 41% licorice phosphine is used.

2.Spraying equipment is generally a conventional knapsack (15 liters) sprayer with a millimeter diameter nozzle. The diameter of the sprinkler is too small, the atomization degree is high, and the adhesion is strong, which can improve the efficacy and reduce the water consumption, but the liquid medicine is easy to drift, which is not conducive to the protection of the target tree species. If the diameter of the nozzle is too large, the degree of atomization will be low, resulting in waste of liquid medicine and increasing water consumption.

3.When spraying, spray the leaf surface of the weeds without dripping and loss.

4.The usual concentration of 41% glycyrrhizine is 100-150 ml mixed with water and 15 kg is sprayed. If there are many perennial and malignant weeds, the spray concentration can be appropriately increased to 150-200 ml of 15 kg of water.

Sometimes due to the lack of water, in order to save water and improve the efficacy, the spraying concentration can also be increased to 150-250 ml of 15 kg of water, and the moving speed can be appropriately increased when spraying. Under normal circumstances, 1 mu of forest land needs 2 barrels (15 kg per barrel) of chemical solution; There are many malignant weeds, the weeds cover a large area, and the liquid medicine is about a barrel.

5.When dispensing, add a small amount of water to the nebulizer, then pour in a certain amount of medicine and shake well, and then add water to the specified capacity. The water used must be clear, because there are many impurities in turbid water, which is easy to combine with the agent to passivate and reduce the efficacy, and it is also easy to block the nozzle.

Eucalyptus weeding If there are difficult weeds such as iron mango, you can add 150ml of 30% glyphosate water agent per bucket of water (15k g), Dow cover irrigation can 100ml, and it is best to add 5ml of Xin'an Chemical Shenlu to spray the leaves finely, from then on glyphosate is difficult to remove weeds no longer occurs, and then as long as 30% glyphosate water agent is used to remove general grass weeds.

Generally, glyphosate stock solution (not diluted) can be used to spray stems and leaves, or drill holes in the root part of the tree, and inject glyphosate stock solution, which is still helpful for killing the root system, the systemic property of glyphosate is unparalleled, generally speaking, glufosinate ammonium and the like can not kill the roots, glyphosate can, glyphosate has a better effect on gramineae, and it is worse for trees, so it is recommended to use 41% glyphosate isopropylamine saline.