Glyphosate is well-known to farmers. Glyphosate is currently the most widely used and largest-volume lethal herbicide. Due to years of use, many weeds have developed strong resistance, and the weed control effect is getting worse and worse.
The combination of glyphosate and other herbicides can not only expand the weed control range, but also significantly improve the weed control effect and completely solve the problem of weed resistance. What are the characteristics of glyphosate? How to use it in combination to achieve the ideal weed control effect? Today, I will introduce two glyphosate formulas to completely solve the weed control problem.
The main advantages of glyphosate
(1) Broad weed control spectrum: Glyphosate is currently the most widely used lethal herbicide, which can effectively control most annual and perennial broad-leaved weeds and grass weeds and shrubs, and more than 40 families of plants.
(2) Good systemic conductivity: Glyphosate is an organophosphorus herbicide with good systemic conductivity. The agent can be quickly absorbed by the stems and leaves of weeds and transmitted to all parts of the weeds, killing all the roots, stems and leaves of the weeds.
(3) Long lasting effect: Glyphosate can kill weeds completely without weed rebound, and the lasting effect can be up to about 50 days. It is currently the longest lasting herbicide variety.
(4) Good safety: Glyphosate can combine with metal ions such as iron and aluminum in the soil and lose its activity. The residual time in the soil is very short, causing little soil pollution and safety for the next crop.
The main disadvantages of glyphosate are as follows:
(1) Incomplete weed control: Although glyphosate can kill most weeds, it has poor effects on weeds such as sedge, fleabane, knotweed, amaranth, pen grass, morning glory, field bindweed, cupflower, cyperus, coleus, and quinoa.
(2) Slow effect: Although glyphosate has a long lasting effect, it usually takes about 15 days for the weeds to die after spraying, which will delay the time for plots that need to be sown urgently.
(3) Poor effect at low temperatures: Glyphosate is highly active at high temperatures and has good weed control effects, but its weed control effects are not ideal under low temperature conditions.
Weed control formula
The first weed control formula is 2-methyl-glyphosate, which is a compound of 2-methyl-4-chloride and glyphosate to form a lethal herbicide. 2-methyl-4-chloride is a hormone-type herbicide. At high concentrations, it can cause local overgrowth of sensitive weeds and cause weed death. This formula has the advantages of good systemic absorption, clean weed control, low price, and easy use. It is especially effective against perennial malignant weeds such as field bindweed, cup flower, morning glory, knotweed, cyperus, and thorny grass. It is mainly used to control difficult-to-control broadleaf weeds and broadleaf shrubs.
The second weed control formula is ethoxylated glyphosate, which is a deadly herbicide compounded with ethoxylated fluazifop-butyl and glyphosate. Ethoxylated fluazifop-butyl is a diphenyl ether post-emergence herbicide. Under light conditions, it reacts with molecular chlorine to generate tetrapyrrole, a compound that is toxic to plant cells, and accumulates to act. Finally, the weeds are completely killed. When mixed with glyphosate, it can effectively kill grass weeds such as sedge grass, orchid grass, and small fleabane that are resistant to glyphosate.
Usage
(1) Prevention and control of broad-leaved malignant weeds: For plots with a large number of malignant weeds such as morning glory, field bindweed, cupflower, cyperus, dayflower, and quinoa, 2-methyl-4-chlorosodium can be added to glyphosate. Since 2-methyl-4-chlorosodium has a good effect on weeds such as cyperus, field bindweed, cupflower, cyperus, and Cyperus dimorphus, 80% 2-methyl glyphosate soluble powder 130-150 g/mu can be used, mixed with 30 kg of water and sprayed evenly, which can effectively prevent monocotyledonous and dicotyledonous, annual and perennial weeds, especially field bindweed, cyperus, Cyperus dimorphus, and purslane.
(2) Control of malignant weeds in the Poaceae family: For plots with a large number of malignant weeds such as Erigeron fasciatus, Artemisia selengensis, and Orchidaceae, 200-400 ml/mu of 31% ethylcarboxylic glufosinate dispersible oil suspension can be used, diluted with 30 kg of water and sprayed evenly. This can effectively control malignant weeds such as Artemisia selengensis, Artemisia serrata, Amaranthus tricolor, and Erigeron fasciatus that are resistant to glyphosate.
