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The researchers started with a single seed of Amaranthus hypochondriacus, their test plant, and grew generations of the plant to produce the seeds they needed for their experiments.
Did you know?, News

New mutations for herbicide resistance rare

Most resistance seems to come from pre-existing genetic conditions

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After exposing more than 70 million seeds to a soil-based herbicide, researchers at the University of Illinois were not able to find a single herbicide-resistant mutant. Though preliminary, the findings suggest that the mutation rate in amaranth is very low, and that low-level herbicide application contributes little — if anything — to the onset of
(Dave Bedard photo)
Crops

Second U.S. jury finds Bayer’s Roundup caused cancer

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Reuters — A U.S. jury on Tuesday found Bayer’s glyphosate-based Roundup herbicide caused cancer, a blow to the company eight months after another jury issued a US$289 million verdict over similar claims in a different case. Tuesday’s unanimous jury decision in San Francisco federal court, which came after five days of deliberation, was not a
Plants on a coca plantation in Colombia’s Sierra Nevada. (James Wagstaff/iStock/Getty Images)
Crops

Colombian president defends use of glyphosate on coca crops

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Bogota | Reuters — A judicial ban on aerial spraying of glyphosate herbicide to eliminate coca crops should be modified, Colombia’s President Ivan Duque said on Thursday, because expansion of the crop since the ban threatens peace efforts. The Andean country suspended aerial fumigation of coca, the raw ingredient in cocaine, with the Monsanto herbicide
(Video screengrab from Enlist.com)
Crops

Assure herbicide’s active ingredient under new ownership

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Now being put to work in Enlist corn, the active ingredient in Assure II herbicide has a new owner. California-based American Vanguard Corp., the owner of ag chemical producer Amvac Chemical, announced Thursday it has bought the quizalofop-p-ethyl (QPE) product line of herbicides from DowDuPont’s ag division, Corteva Agriscience, for an undisclosed sum. A Group
Even less competitive crops can benefit from an integrated weed management strategy.
Crops, Other

Crop establishment important for weed management

Combining many tools into an overall integrated weed management strategy is a winner

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There are many components to integrated weed management (IWM) including crop rotation, seeding rates, chemical, cultural and mechanical controls, but one of the most vital aspects of any successful IWM is crop establishment, says Dr. Rob Gulden of the University of Manitoba. At this year’s Crops-A-Palooza event in Portage la Prairie, researchers including Gulden manned
Terry Buss, Manitoba Agriculture’s farm production extension specialist for pulses, explained dicamba drift on susceptible soybeans last year at the Crop Diagnostic School at Carman, Man.
Crops, Local news

Dicamba drift not a problem in Manitoba this year

There are many ways to mitigate drift, but using the right spray nozzles is one of the most critical

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For the second straight year dicamba drift, which has damaged millions of acres of crops in the United States, hasn’t been much of a problem in Manitoba, officials say. While there’s pressure to further regulate the broadleaf weed killer in the U.S., that’s not the case in Canada. “We’re aren’t seeing an awful lot of
A soybean plantation in Brazil. (MailsonPignata/iStock/Getty Images)
Crops

Brazilian court overturns ban on glyphosate

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Brasilia | Reuters — A Brazilian court on Monday overturned an injunction banning products containing the herbicide glyphosate, knocking down a previous ruling that had been set to disrupt the soy planting season set to begin this month. A Brazilian judge ruled last month to halt the registration of new glyphosate-based products in the country
A soybean plantation in Brazil. (MailsonPignata/iStock/Getty Images)
Crops

Brazil judge suspends use of glyphosate herbicide

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Sao Paulo | Reuters – A Brazilian judge has suspended the use of products containing the agrochemical glyphosate, a herbicide widely employed for soybeans and other crops in the country. A federal judge in Brasilia ruled on Friday that new products containing the chemical could not be registered in the country and existing registrations would
A depiction of the herbicide molecule (top), which inhibits an enzyme (bottom) that plants need.
Did you know?, News, Other

Neutralizing weeds’ defence system

Researchers identify a new mechanism to battle herbicide resistance

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Plants and unseen soil micro-organisms all need precious space to grow. And to gain that space, a microbe might produce and use chemicals that kill its plant competitors. But the microbe also needs immunity from its own poisons. By looking for that protective shield in micro-organisms, specifically the genes that can make it, a team
(Arysta.cl)
Crops

UPL to buy crop chem firm Arysta

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Indian chemical manufacturer UPL has raised the financial backing for an all-cash deal to become what’s expected to be the world’s fifth biggest crop chemical firm. UPL on July 20 announced it will pay $4.2 billion to buy 100 per cent of Arysta LifeScience — the maker of Everest and Inferno herbicides, among other products

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