Tag Archives: Herbicide

Tropical Spiderwort

tropical spiderwort

Every now and then, this weed emerges to remind producers it can be quite a formidable foe. Tropical spiderwort, also called Benghal dayflower, is a weed that came on the row-crop production scene in the early 1990s and continues to crop up from time to time. Although Palmer amaranth became the weed garnering most of the attention in the last ... Read More »

Although Valor SX Injury Can Be Worrisome, It Typically Is Fleeting

This image provides a visual of injury from Valor SX in peanut. The greatest injury potential is when rain occurs as peanuts are emerging, especially intense rain that causes splashing of herbicide onto leaves. While the injury can be alarming, in my experience the injury is transient and peanuts recover quickly. Even when injury is considered excessive, the injury most ... Read More »

To Replant Or Not

planting seed

As we move into late May in the Virginia-Carolina region, there are a number of things that need to be done. As one checks off the list, field (and the previous rotation), tillage system, variety selection, preplant burndown or preplant incorporated herbicides, preemergence herbicides, inoculant and in-furrow systemic insecticide treatments are in place. Timely application of postemergence herbicides, and an ... Read More »

Zidua Herbicide Q&A

peanuts growing in field

• By Steve Li, Alabama Cooperative Extension Specialist and Assistant Professor,  Crop, Soil and Environmental Sciences • Q What is Zidua? How does it kill weeds? A: Zidua (pyrosasulfone) is a Weed Science Society of America (WSSA) group 15 herbicide, which has similar mode of action to Dual Magnum (S-metolachlor), Warrant (acetochlor) and Outlook (S-dimethenamid). It controls weeds by inhibiting production ... Read More »

The 2019 Disease Risk Index

tomato spotted wilt virus on peanuts

In 2018, losses to tomato spotted wilt across the peanut production region of the southeastern United States increased slightly from estimated losses from 2017. Losses associated with spotted wilt were approximately 3 percent in 2017 and 3.5 percent in 2018, though tomato spotted wilt was more severe in some fields than in others. Growers can successfully manage this disease, and ... Read More »

New Products

new improved fieldnet app

Mud Rx For Planter Tires In damp or muddy conditions, planters and air seeders invariably are plagued with mud-plugged wheels from mud finding its way between the tire and disc. The operator must stop, manually remove the wheels and clean the mud out by hand. It’s a miserable job and it slows planting to a halt. With this easy to ... Read More »

It’s A Trade Off

small weed in peanuts

Producers must weigh the reward of weed control with the risk of herbicide injury.  • By Amanda Huber  • The phone started ringing off the hook around the middle of May, says Eric Prostko, University of Georgia Extension weed scientist. Herbicide injury was one of the early suggestions as to crop problems last season, but for the peanut team weed science man ... Read More »

Weed Control Options

Peanut growers are fortunate to have 18 active ingredients registered for use as herbicides. In general, these herbicides are very effective when applied at the appropriate rate and time. Failure to start clean at planting, residual herbicides that are not activated with timely irrigation or rainfall, postemergence applications to weeds larger than 3 inches tall and unfavorable environmental conditions, such ... Read More »

Incorporating S-metolachlor

Follow these recommendations to properly activate this herbicide with irrigation. By J. Ferrell and R. Leon, University of Florida Weed Scientists Herbicide-resistant weeds have changed how we design our weed management programs. To combat these weeds, we are increasingly returning to soil-applied herbicides. However, a soil-applied herbicide has to be mixed in the soil, or activated, to be effective. If ... Read More »

Is Sicklepod Next

University of Georgia weed scientists are looking at the possibility of herbicide-resistant sicklepod. By Clint Thompson, University of Georgia College of Agricultural and Environmental Sciences The possibility of sicklepod weed becoming resistant to herbicides is a potential concern for  Georgia peanut farmers, says Eric Protsko, a weed scientist with the University of Georgia College of Agricultural and Environmental Sciences. Sicklepod ... Read More »