Yu-Hung Hung; Palmer amaranth’s arsenal: Rearrangement of eccDNA provides dual herbicide resistance in Amaranthus palmeri, The Plant Cell, , koaf077, https

Scientific Data - Chromosome-scale genome assembly and de novo annotation of Alopecurus aequalis

Through international teamwork, scientists’ on-site weed resistance diagnosis boosts knowledge exchange and sustainable agriculture.

The U.S. seems bent on moving from free trade to managed trade, a Manitoba bovine TB case illustrates the need to keep wildlife away from cattle, and a newly-approved row crop herbicide shows promise ...

Soil Education, Consulting, Cover Crop Seed & Equipment Sales, Grant Writing, Prairie Restoration.

(Beyond Pesticides, December 15, 2022) Industrial agriculture has both created and amplified the spread of the now highly problematic waterhemp (Amaranthus tuberculatus) plant, according to research published this month in the journal Science. Over the last 80 years, the push to increase monoculture plantings, expand cropland, and utilize chemical fertilizers and pesticides has changed waterhemp from a tame riparian wild plant into an aggressive, weedy intruder able to compete with row crops like corn and soybean. “The genetic variants that help the plant do well in modern agricultural settings have risen to high frequencies remarkably quickly since agricultural intensification in the 1960s,” said study author Julia Kreiner, PhD with the University of British Columbia’s Department of Botany. “The types of changes we’re imposing in agricultural environments are so strong that they have consequences in neighbouring habitats that we’d usually think were natural.” To better understand how this plant went from a waterside obscurity to North America’s most notorious “weed,” researchers tracked the shifts occurring within the plants genome. Using data from herbarium samples first collected in 1828 until 2011, scientists sought out alleles (genetic mutations) that corresponded with agricultural intensification and analyzed the frequency of their occurrence over the nearly […]

(Beyond Pesticides, May 10, 2022) Widespread weed resistance on chemical corn and soybean farms is leading farmers to till their fields more often, significantly increasing greenhouse gas (GHG) emissions. These findings were published late last month in the journal Nature Food by a team of Iowa State University researchers. With agricultural practices accounting for roughly 10% of U.S. GHG emissions, and 25% of worldwide releases, farming practices that preserve soil health and sequester GHGs are essential for the future of food production. Tillage is a farming practice that can provide a range of benefits for crop production, but only in the right conditions. A range of tillage practices exist, ranging from yearly conventional tillage, where most crop residue is plowed into the soil, to conservation tillage where some residue remains, and no-till systems where the soil remains covered. Repeated tillage causes significant harm to soil structure and biology, and result in erosion and the release of GHGs like carbon dioxide, methane, and nitrous oxide from soil into the atmosphere. The harms of tillage have led both chemical and organic farmers toward no-till or reduced tillage systems. Organic no-till farming, as practiced by farming groups like the Rodale Institute, employs the […]

Dr Lovreet Singh Shergill discusses herbicide resistance in weeds at PAU Ludhiana. The lecture highlights integrated weed management strategies and climate impact on agriculture.

Following a technical briefing that identified multi‑herbicide resistance in kochia and an elevated wildfire fuel risk, Williams County commissioners voted to draft a letter to the North Dakota Industrial Commission and seek neighboring counties’ support to revise management practices and application timing.

Tate Cronin and Hayden Lever of the University of Tennessee West Tennessee Research & Education Center said the center will host a professional Weed Tour on June 17 focused on herbicide resistance and replicated field trials, and a free Garden Buzz family event on June 24 as part of National Pollinator Week.

Harvest is close to done on the Prairies, but some farmers' crops are being overrun by kochia, an invasive weed. They hope scientists can stop the spread before food production is affected forever.

Oblivious to the punishing midday heat, a wheeled robot powered by the sun and infused with artificial intelligence carefully combs a cotton field in California, plucking out weeds.