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net Chinese website reported: Global corn production is highly concentrated
.
The United States, China , Brazil , and Argentina are the four countries with the highest total corn production in the world, accounting for 70% of the global corn production in 2020
.
The United States is the world's largest corn producer.
In 2020, corn production will increase to 360 million tons, an increase of 4.
1% year-on-year, accounting for 31.
7% of the world's total output
.
China is the world's second largest corn producer, with a corn output of 261 million tons in 2020, accounting for 23%
.
The United States occupies an important position in global corn production.
In the past year or so, a number of herbicides that can be used in corn have been marketed in the United States, or will be marketed in the next 1-2 years
.
U.
S.
corn crop weed problem
S.
corn crop weed problem
Palmer amaranth (Palmer amaranth), common ragweed (common ragweed), amaranth vine (waterhemp), marestail (marestail), etc.
are the main weeds in American corn crops
.
In 2017, the United States Weed Science Association (WSSA) named Amaranthus amaranthus as the "most troublesome weed" because it competes fiercely with row crops in terms of nutrients, moisture and sunlight, and can quickly control herbicides.
Build resistance
.
Currently, it has evolved resistance to at least five different herbicide sites of action
.
are the main weeds in American corn crops
.
In 2017, the United States Weed Science Association (WSSA) named Amaranthus amaranthus as the "most troublesome weed" because it competes fiercely with row crops in terms of nutrients, moisture and sunlight, and can quickly control herbicides.
Build resistance
.
Currently, it has evolved resistance to at least five different herbicide sites of action
.
It has also been reported that amaranth vine populations in some areas of the United States have evolved resistance to at least seven herbicides, including herbicides in groups 2, 4, 5, 9, 14, 15 and 27
.
Amaranth vines are easier to evolve resistance to multiple herbicides than Amaranthus longifolia, which is a more aggressive weed
.
Recently, scientists have even discovered that amaranth vine seeds have developed resistance to herbicides that have not yet been commercialized
.
These two weeds have become important issues in corn and soybean planting systems, and the problem of resistance has become more and more serious.
Finding effective treatment methods has become the focus of many agrochemical companies.
Bayer even plans to specifically address these two weeds.
A new herbicide formulation
.
.
Amaranth vines are easier to evolve resistance to multiple herbicides than Amaranthus longifolia, which is a more aggressive weed
.
Recently, scientists have even discovered that amaranth vine seeds have developed resistance to herbicides that have not yet been commercialized
.
These two weeds have become important issues in corn and soybean planting systems, and the problem of resistance has become more and more serious.
Finding effective treatment methods has become the focus of many agrochemical companies.
Bayer even plans to specifically address these two weeds.
A new herbicide formulation
.
New corn herbicide
American Pioneer
Impact Core (0.
78% acetochlor + acetochlor 77.
78%, EC)
78% acetochlor + acetochlor 77.
78%, EC)
Impact Core is a new post-emergence herbicide launched by the American pioneer company for the 2021 growing season.
It can provide residual control for annual gramineous weeds and broadleaf weeds, including several herbicide-resistant weeds, such as amaranth vines, long-leaf weeds Amaranth, giant ragweed (giant ragweed)
.
It can provide residual control for annual gramineous weeds and broadleaf weeds, including several herbicide-resistant weeds, such as amaranth vines, long-leaf weeds Amaranth, giant ragweed (giant ragweed)
.
Sinate (Carfentrazone 1.
1% + glufosinate-ammonium 26.
95%)
1% + glufosinate-ammonium 26.
95%)
In 2021, American Pioneer Company launched a new post-emergence corn herbicide product Sinate in the United States, which can control LibertylInk corn herbicide-resistant weeds and difficult to eliminate weeds
.
Sinate is specifically developed for land where weed problems may be more serious and require multiple modes of operation for effective management
.
The oxaflutole and glufosinate-ammonium contained in it bring a double blow to amaranth vine, long-man amaranth and big ragweed
.
.
Sinate is specifically developed for land where weed problems may be more serious and require multiple modes of operation for effective management
.
The oxaflutole and glufosinate-ammonium contained in it bring a double blow to amaranth vine, long-man amaranth and big ragweed
.
Syngenta
Acuron GT (refined metolachlor 19.
7% + glyphosate 19.
7% + mesotrione 1.
97% + flurpyridone 0.
94%)
7% + glyphosate 19.
7% + mesotrione 1.
97% + flurpyridone 0.
94%)
Syngenta launched Acuron GT in the U.
S.
in 2021.
It contains 4 active ingredients and 3 action sites.
It is used for the post-emergence weeding of glyphosate-tolerant corn, and it is used for grass weeds and broadleaf weeds that prey on crop yields.
Such as giant ragweed (giant ragweed), ragweed, Kochia scoparia, cedar leaf algae, morning glory, amaranth and amaranth vines have higher control levels
.
S.
in 2021.
It contains 4 active ingredients and 3 action sites.
It is used for the post-emergence weeding of glyphosate-tolerant corn, and it is used for grass weeds and broadleaf weeds that prey on crop yields.
Such as giant ragweed (giant ragweed), ragweed, Kochia scoparia, cedar leaf algae, morning glory, amaranth and amaranth vines have higher control levels
.
Compared with Halex GT (Mesotrione + Refined Metolachlor + Glyphosate), Acuron GT enhances the control effect against malignant weeds and has a longer lasting residual effect control ability
.
Scott Cully, a research and development scientist at Syngenta in Illinois, USA, said that farmers in the area found that compared with Halex GT, farmers in the area found that Acuron GT had residues on amaranth between 42 and 56 days after treatment.
Control increased by 14%
.
.
Scott Cully, a research and development scientist at Syngenta in Illinois, USA, said that farmers in the area found that compared with Halex GT, farmers in the area found that Acuron GT had residues on amaranth between 42 and 56 days after treatment.
Control increased by 14%
.
HELM Agro
Katagon (Tolpyralate 11.
72% + Nicosulfuron 11.
72%, SC)
72% + Nicosulfuron 11.
72%, SC)
Katagon is a new generation HPPD inhibitor (Group27) herbicide premix developed by Ishihara Sangyo Kaisha, Ltd.
, which has been registered at the end of 2020.
It is used for the post-emergence weeding of different types of corn.
It has two modes of action.
Tolpyralate Nicosulfuron and Nicosulfuron are the first in the United States
.
Relevant personnel of the company said that when Katagon is used in combination with atrazine, it can effectively prevent and control broadleaf weeds and enhance the prevention and control of gramineous weeds
.
, which has been registered at the end of 2020.
It is used for the post-emergence weeding of different types of corn.
It has two modes of action.
Tolpyralate Nicosulfuron and Nicosulfuron are the first in the United States
.
Relevant personnel of the company said that when Katagon is used in combination with atrazine, it can effectively prevent and control broadleaf weeds and enhance the prevention and control of gramineous weeds
.
Earlier in 2021, HELM Agro US and ISK Biosciences Corporation (a subsidiary of Ishihara Sangyo Kaisha, Ltd.
) reached a cooperation agreement on the distribution of Katagon herbicide in the United States
.
) reached a cooperation agreement on the distribution of Katagon herbicide in the United States
.
Reviton (Flurathiop-ethyl 30%, SC)
In October 2020, Reviton was launched in Meridian.
It is a PPO inhibitor herbicide (group 14) that contains a new active ingredient called Tergeo
.
It is a non-selective herbicide registered for the killing and drying of weeds before planting corn, soybeans, cotton and wheat
.
Reviton can control or inhibit more than 50 broad-leaved and gramineous weeds, including ALS, triazine and glyphosate resistant weed species
.
It is a PPO inhibitor herbicide (group 14) that contains a new active ingredient called Tergeo
.
It is a non-selective herbicide registered for the killing and drying of weeds before planting corn, soybeans, cotton and wheat
.
Reviton can control or inhibit more than 50 broad-leaved and gramineous weeds, including ALS, triazine and glyphosate resistant weed species
.
The new molecule tiafenacil contained in the herbicide was discovered by Hannong.
Later, the Japanese agrochemical company Ishihara Sangyo Kaisha, Ltd.
joined the joint development of the product, and it has now been commercialized globally
.
In 2020, HELM Agro US and Ishihara Sangyo Kaisha have conducted a long-term cooperation to commercialize the Reviton herbicide, specifically for the US crop protection market
.
Later, the Japanese agrochemical company Ishihara Sangyo Kaisha, Ltd.
joined the joint development of the product, and it has now been commercialized globally
.
In 2020, HELM Agro US and Ishihara Sangyo Kaisha have conducted a long-term cooperation to commercialize the Reviton herbicide, specifically for the US crop protection market
.
Helena
Empyros (refined metolachlor 41.
45% + tolpyralate 1.
12%)
45% + tolpyralate 1.
12%)
Empyros Triad (refined metolachlor 19.
4% + atrazine 19.
4% + tolpyralate 0.
48%)
4% + atrazine 19.
4% + tolpyralate 0.
48%)
Empyros Triad Flex (refined metolachlor 28% + atrazine 10.
5% + tolpyralate 0.
54%)
5% + tolpyralate 0.
54%)
Empyros was listed in the United States in January 2021 and will be launched in 2021.
It is a pre-emergence and early post-emergence corn herbicide, which can be used to control quinoa, ragweed and other broad-leaved weeds and gramineous weeds
.
Empyros Triad and Empyros Triad Flex are compounded with three active ingredients of refined metolachlor, tolpyralate and atrazine
.
It is a pre-emergence and early post-emergence corn herbicide, which can be used to control quinoa, ragweed and other broad-leaved weeds and gramineous weeds
.
Empyros Triad and Empyros Triad Flex are compounded with three active ingredients of refined metolachlor, tolpyralate and atrazine
.
Cortiva
Resicore XL (acetochlor + mesotrione + clopyralic acid)
In the past 20 years, Corteva has launched 9 kinds of corn herbicide formulations.
In July 2021, Corteva announced that it will launch the corn herbicide Resicore XL premix in 2022
.
The original Dow had launched Resic ore ™ , the predecessor of the herbicide in 2016 , but it was only used for pre- emergence weeding
.
Resicore XL has higher crop safety, wider application window and stronger barrel mixing compatibility.
It can be used on corn with a height greater than 11 inches before planting, pre-emergence or post-emergence, preventing and controlling more than 75 kinds of stubbornness.
The broad-leaved and gramineous weeds in the world include amaranth, amaranth vines, horsetail and ragweed
.
In July 2021, Corteva announced that it will launch the corn herbicide Resicore XL premix in 2022
.
The original Dow had launched Resic ore ™ , the predecessor of the herbicide in 2016 , but it was only used for pre- emergence weeding
.
Resicore XL has higher crop safety, wider application window and stronger barrel mixing compatibility.
It can be used on corn with a height greater than 11 inches before planting, pre-emergence or post-emergence, preventing and controlling more than 75 kinds of stubbornness.
The broad-leaved and gramineous weeds in the world include amaranth, amaranth vines, horsetail and ragweed
.
Bayer
Convintro (Diflufenican)
Diflufenac has been used for many years in Europe and other places, mainly used to control broad-leaved weeds in grains, but it is relatively unfamiliar to crop producers in the United States.
Bayer has further developed new uses for the herbicide, It is used on American corn and soybean crops to control two kinds of difficult weeds, amaranth and amaranth vines.
Bayer stated that this herbicide has limited effect on other weeds commonly found in corn and soybeans
.
Bayer has further developed new uses for the herbicide, It is used on American corn and soybean crops to control two kinds of difficult weeds, amaranth and amaranth vines.
Bayer stated that this herbicide has limited effect on other weeds commonly found in corn and soybeans
.
In corn, Bayer plans to package diflufenican with HPPD inhibitor herbicides to enhance weed control
.
.
