Crop Treatments

All Crop Treatments Content

Herbicide Resistance Detection in the Field

Have you noticed weeds surviving a typically lethal herbicide application? There’s a chance they’ve developed herbicide resistance. Learn some expert tips for detecting and confirming resistance in fields.

A red sprayer in a green field with a cloudy sky in the background.

June 20 Was the Last Day to Apply Dicamba Postemergence in Dicamba-Tolerant Soybean in South Dakota

The cutoff date to apply dicamba postemergence was June 20, 2023. Eric Jones, Assistant Professor and SDSU Extension Weed Management Specialist, shares some important updates now that the deadline has passed.

Tractor with sprayer applying postemergence herbicide to soybeans.

Considerations for Postemergence Herbicides

Postemergence herbicide applications can protect your crop yields by limiting in-season weed competition. Learn everything you need to know before firing up your sprayer.

Tractor applying preemergence herbicide on a freshly planted field.

Considerations for Preemergence Herbicides

Weeds emerging with crop plants have the potential to reduce yields. Learn some tips for applying preemergence herbicides to control weeds before emergence to ensure that your yields aren't limited by early-season weeds.

Effects of Plant Growth Regulator in Oats

Plant growth regulators are human-applied chemicals that manipulate the hormone functions in plants. Learn how they can be used in oats to help reduce lodging and prevent yield loss.

Paul O. Johnson giving a presentation near a research plot.

Paul O. Johnson Retires After Dedicated Career in SDSU Extension

June 08, 2022

Paul O. Johnson, SDSU Extension Weed Science Coordinator and Northeast Research Farm Coordinator, is retiring after a dedicated 33-year career supporting the people of South Dakota in his role at SDSU Extension.

Boom Sprayer Calibration

Fact sheet on calibrating a boom sprayer to minimize damage to plants and reduce environmental impact

a variety of cover crops growing in a field

Herbicide Considerations for Cover Crop Planting in 2019

Long residual pre-emergent or early post-emergent herbicides may cause stand reduction or complete failure of cover crops. Depending on efficacy of the herbicide, each situation can both affect in-season and/or post-harvest cover crop establishment.

A thick patch of yellow, flowering leafy spurge plants growing in a pasture.

Spot Treatment Options for State Noxious Plants

When controlling grassland weeds, the mindset of row crop weed control may be put into practice too often. In most cases, broadcast control of weeds in grasslands is rarely necessary. Most often, spot treatment can be used more effectively to manage the noxious and invading weeds.

A sprayer applying pre-emergent pesticide to a bare field.

Herbicide Rotation Restrictions

This is a quick reference guide to common herbicides and their rotation restrictions for selected crops.