What herbicide works well on red-root amaranth?

Red-root amaranth has fairly strong vitality. If red-root amaranth was previously grown, it needs to be removed before planting other crops, so what herbicide should be used on red-root amaranth?

1. What herbicide to use on red-root amaranth

Red-root amaranth can be removed with herbicides such as fluoroglycofen-ethyl, fomesafen and bentazone, and they must be used according to the instructions. If there is not much of it, it can also be pulled out by hand; red-root amaranth is edible.

2. Basic introduction to the herbicides

1. Fluoroglycofen-ethyl

It belongs to the diphenyl ether class of herbicides and is a protoporphyrinogen oxidase inhibitor, suitable for wheat, barley, peanut, soybean, sugarcane, rice fields and for weed control in combination with other non-selective herbicides.

Once this product is absorbed by plants, it exerts its effect only under light conditions. This compound reacts with molecular chlorine to form tetrapyrrole, a compound toxic to plant cells, which accumulates and then takes effect. During the accumulation process, the plant cell membrane is completely destroyed, and then the cell contents leak out.

2. Fomesafen

Fomesafen is a chemical substance with low toxicity to humans and livestock, mild irritation to skin and eyes, very low toxicity to fish and aquatic organisms, and low toxicity to birds and bees as well.

It is a highly selective post-emergence herbicide for soybean and peanut fields, able to effectively control broadleaf weeds and purple nutsedge in soybean and peanut fields, and it also has a certain control effect on grass weeds. It can be absorbed by the roots and leaves of weeds, causing them to wither and die quickly. If it rains 4-6 hours after spraying, the efficacy is not affected, and it is safe for soybean.

3. Bentazone

It is a selective contact post-emergence herbicide, mainly used for stem and leaf treatment at the weed seedling stage, suitable for rice, soybean, peanut, wheat and other crops, controlling broadleaf weeds and sedge family weeds, and is ineffective against grass weeds.

This product acts mainly by contact, and the weed stems and leaves must be thoroughly wetted when spraying. There should be no rain within 8 hours after spraying, otherwise the efficacy is affected. This product is ineffective against grass weeds; if it is mixed with herbicides for controlling grass weeds, it should be tested first before being widely used.