Diquat, also known as killing grass and benefiting farmers, is an organic heterocyclic biocidal contact herbicide. Suitable for use in fruit, mulberry, tea gardens and other non-arable land to control weeds that have emerged. It has a good effect on Asteraceae, Brassicaceae, Solanaceae, and Lamiaceae weeds, but has poor control effect on Polygonaceae and Convolvulaceae. It can also be used as a wilting agent for broadleaf crops before harvest. It is the current biocidal herbicide that replaces paraquat.
Mechanism of action
Diquat can be rapidly absorbed by green plant tissues, interfering with the electron transfer of photosynthesis in green plant tissues. The reduced bipyridyl compound is quickly oxidized under light induction in the presence of oxygen to form active hydrogen peroxide, which produces hydrogen peroxide. The accumulation of this substance damages the plant cell membrane and causes the treated parts to wither and turn yellow. Cause the green tissue of weeds to die. However, it cannot penetrate mature bark, is blunted by soil, and is basically ineffective against underground roots and stems.
main feature
Diquat is a contact herbicide. It is the third largest biocidal herbicide in the world after glyphosate and glufosinate. It has special effects on malignant broadleaf weeds. It has quick effect, strong conductivity and tolerance. Low temperature and other advantages. Diquat is a typical photosynthetic system inhibitor. It is fast-acting, does not damage roots, is passivated by soil, and is beneficial to subsequent crops. It is one of the alternative products after paraquat aqueous agent was banned.
use crops
Suitable for use in fruit, mulberry, tea gardens and other non-cultivated lands. Potatoes, cotton, soybeans, corn, sorghum, flax, sunflower and other crops.
Control objects
Control emerging weeds. It has a good effect on Asteraceae, Brassicaceae, Solanaceae, and Lamiaceae weeds, and can also be used as a wilting agent for broadleaf crops before harvest. It has poor control effect on Polygonaceae and Convolvulaceae. It can also be used as a wilting agent for crops such as potatoes, cotton, soybeans, corn, sorghum, flax, and sunflowers.
Instructions
(1) Weeding in no-till fields: Depending on the size and quantity of weeds, 20% dichlorpyridine fast water agent can be sprayed per mu at a spray volume of 250-300 grams per mu, and 30-50 kilograms of water per mu can be used, using a manual sprayer. Spray the weed foliage evenly. It takes effect within 2 hours, and the weeds will die on the same day, and the dichlorweed will soon be inactivated by the soil, leaving very little residue. Vegetables can be planted on the third day, making it suitable for crop replacement.
(2) Directional weeding between rows: When weeding is required between rows of crops such as corn and orchards, 300 to 250 ml of 20% dichlorpyridine aqueous agent can be mixed with 30 to 50 kilograms of water and sprayed directionally between the rows to control weeds between the rows.
(3) To promote drying and defoliation: 10 to 15 days before the harvest of potatoes, cotton, soybeans and other crops, you can use 200 to 250 ml of 20% diquat water agent mixed with 30 kg of water and spray evenly to quickly make the leaves dry and fall off, making harvesting easier.
