How Preemergent Herbicides May Be Driving Waterhemp Resistance
A new Weed Science Society of America research article highlights the need for stewardship to preserve PPO-inhibitor herbicides as an effective waterhemp control option

A new Weed Science Society of America research article highlights the need for stewardship to preserve PPO-inhibitor herbicides as an effective waterhemp control option

A recently published article in the journal Weed Science shows electric control technologies can eradicate weeds just as effectively as herbicides or mechanical methods, with minimal risks to the crop, soil or the environment.

New research from the University of Waterloo shows that a single, targeted herbicide application from a Remotely Piloted Aircraft System (RPAS) can suppress common reed invasions with more than 99% effectiveness.

Until now, not much was known about the influence that nozzle type and application volume have on weed control efficacy with remotely piloted aerial application systems (RPAASs). However, new research shows that RPAAS applications using low-drift nozzles at low spray volumes (1.0–1.5 gallons/acre) can achieve weed control levels comparable to ground sprayer applications at 10 gallons/acre in turf.

A strategy utilizing both preemergence (PRE) and postemergence (POST) herbicide treatments optimized weed control outcomes in early planted soybean. Researchers conducted their study in 2021 at three locations across Central Illinois.

Recently published research in the journal Weed Science shows planting soybean into a green, living cover crop effectively suppresses two problematic Amaranthus weed species – waterhemp and Palmer amaranth – when integrated with pre-emergence (PRE) herbicides.

Black swallowwort is a difficult to control invasive vine that thrives in natural areas and perennial cropping systems in northeastern North America. To date, though, little is known about how the weed responds to mowing or to various herbicidal controls.

California’s commercial orchards produce a variety of crops valued by consumers – from stone fruit to almonds and walnuts. A successful harvest depends on the effective management of weeds that can interfere with irrigation lines, compete with crops for water, and impede sweepers and other harvesting equipment.

Downy brome is an annual winter grass that has invaded millions of acres of western rangelands and wildlands. It can outcompete native vegetation and can increase the frequency and severity of wildfires by leaving behind dense mats of litter at the end of its growing season.

The latest issue of the journal Weed Science contains an article with intriguing new insights about the control of herbicide-resistant kochia, a weed that competes with both dryland and irrigated crops across the Great Plains states.…

Fall-planted cover crops are frequently a component of integrated weed control programs in herbicide-resistant soybeans. But does it matter which cover crop is used?…

With the recent introduction of soybean and cotton traits resistant to synthetic auxin herbicides, farmers have new, much needed options for managing glyphosate-resistant broadleaf weeds. Researchers writing in the journal Weed Technology say use of the auxins isn’t without risk.