Weeds

Herbicide-resistant weeds are a growing problem for farmers across the country, and as weed scientists search for a solution, Mizzou is testing out a weed zapper which electrocutes weeds.
Asian copperleaf was found in an Iowa soybean field this summer. Agronomists are evaluating how much of a concern the weed poses to row crops there. It has been confirmed in only one other U.S. location: New York City.
This was a familiar scene in fields across the Midwest this season. Not only did volunteer corn impact soybean yields, agronomists say it sheltered rootworm eggs that can overwinter and infest corn crops next spring.
Today a panel of judges for the U.S. Court of Appeals for the Ninth Circuit said it will not require vacatur for Enlist Duo herbicide. The herbicide, with 2,4-D choline and glyphosate, was challenged in court.
By crop, here are the weeds scientists put in the bull’s-eye for seven grass crops.
Available to corn growers for the 2021 season, Katagon is classified as a Group 27 and Group 2 herbicide with a use rate of 2.3 to 3.4 fluid ounces per acre.
Corn subjected to heavy rainfall can still deliver a significant yield response to a nitrogen application -- in some cases, up to 60 bu.
The company says a U.S. judge’s rejection of its class-action proposal will have no impact on its commitment to Roundup or Roundup Ready and their availability for farmers and retailers.
By digging through the thousands of data sets, a team at the University of Illinois and ARS uncovered it’s not just climate making weed control hard, but late season weed pressure has a devastating impact on corn yield.
Bayer’s Louisiana glyphosate plant is back online, but the glyphosate shortage is industry wide as one Extension weed scientist says growers need to make multiple crop chemistry plans for the next two years.
In order to get ahead of weeds, you need to know what weeds you’re up against. There are several weed identifying apps available, but how accurate are they? Researchers at MSU have the answers.
Three dozen cameras evenly spaced across a 120’ boom use artificial intelligence to target and spray weeds, cutting herbicide use by up to 80% and improving weed control
Use the fall season to get a head start on weed control for next spring.
The 60-plus year-old product is used on more than 70% of U.S. corn acres to control grass and broadleaf weeds.
As the bullies of the plant world, weeds cost you time, money and energy. You need a comprehensive weed management plan that includes all the tools at your disposal.
Whether you call it slugged, plugged or wadded-up, a combine jammed with weeds or damp crop is enough to make a preacher cuss. Here are tips to minimize your frustration and downtime.
From boom priming and a nozzle control system to multiple camera functions, the six new sprayer products will be further field-tested this year.
BASF and Bosch are developing new technology for weed management. Their system photographs weeds, signals nozzles to spray and records the data in milliseconds. Farmers then get a map printout for easy reference.
Reducing herbicide usage by 97% in pre-emergence and 88% in post-emergence spraying, Greeneye Technology might be the ‘next-big-thing’ in sprayer technology.
In 2020, Pat Duncanson began a three-year march toward organic certification on 100 acres of corn and soybean ground. After a weed honeymoon, weeds rebounded in 2021, and Duncanson brought in a chopping crew.
Corteva Agriscience and BASF Agricultural Solutions are partnering to bring the first four-way herbicide-tolerant trait stack, based on PPO chemistry, to the marketplace for soybean growers.
Bayer Crop Science has the first truly new MOA in the herbicide-tolerant pipeline for soybeans in more than 30 years, the company reports.
Non-GMO soybeans at R2 to R3 are seeing weed flushes. You will ‘burn’ the beans to get rid of waterhemp, but that’s a better option than leaving the weed to flourish, go to seed and fill the seed bank for next spring.
Farmer DIY: Low-cost, weed-specific automated sprayers built on-farm are on the near-horizon for agriculture.
An Oregon case marks the latest in a long line of lawsuits the company has had to contend with in the past few years. Most of the 138,000 cases have come out of the U.S. residential lawn and garden marketplace.
The 9th U.S. Circuit Court of Appeals said in its ruling the agency did not adequately evaluate the herbicide’s potential impact when it reauthorized its use in January 2020.
It is far too common to see waterways in Louisiana clogged by giant salvinia, an invasive aquatic plant native to South America. Now, Louisiana is looking at an alternative use for the noxious plant — paper.
Post-emergent herbicide supplies can be hard to find this year. To overcome this challenge, make a plan and consider a new approach to weed management.
An adjuvant based on wood waste reduces herbicide drift.
Could LED light be used to kill weed seed inside a combine during harvest? The technology has already arrived, according to an inventor raised in the corn and soybean rows of Ohio farmland.
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