Content by Eric Jones

Young farmer analyzing data on a tablet computer beside a crop sprayer.

Pesticide Mixing and Sprayer Calibration Equations

Pesticides need to be applied at proper rates to ensure effective control of the pest. Learn some common equations used to mix pesticides and calibrate sprayers.

Yellow wheat field with green weeds throughout.

Weed Control Field Test Data

Data books to use as a reference to select appropriate herbicide(s) for row crops

Canada thistle growing in a pasture.

Noxious and Pasture Weed Plot Data Report

Data books to use as a reference to select appropriate herbicide(s) for noxious and pasture weed

sun rising over South Dakota field

South Dakota Pest Management Guides

The South Dakota Pest Management guides are now available for free. The guides offer recommendations for controlling weeds, insects, and diseases in a variety of South Dakota crops.

Producer with tablet observing a field in late autumn.

Now Is the Time To Make Your Weed Management Plan for the 2024 Growing Season

As harvest season comes to an end, now is the time to start formulating your weed management plan for next year. Learn some expert tips for getting your operation off to a good start next growing season.

Producer observing a bare field in late autumn.

Now Is the Time To Plan For Noxious Weed Control in 2024

Since most of South Dakota has experienced several frosts, fall herbicide applications are likely near completion. However, now is the time to plan for noxious weed management for both spring and fall of 2024.

Solanum ptychanthum plant profile.

Understanding Eastern Black Nightshade: A Comprehensive Guide for Gardeners

Eastern black nightshade is a resilient invasive plant that can thrive in a variety of environments. This resource explores its genus, description, optimal growing conditions, propagation, fruiting period, and methods for safe removal.

Three pictures of a red combine with tan and black soybean and weed seeds spread throughout its surfaces.

Evidence That Combines Can Transport Weed Seeds

A combine deliberately harvests crop grain, but it can also unintentionally transport weed seeds. Learn some tips for cleaning equipment and containing residues during harvest to prevent weeds from spreading this fall.

Two photos of yellow soybeans, one with green and yellow weeds in between the rows and the other with a clearing in-between soybean rows.

Order of Fields Harvested Can Improve Weed Management

Weeds at harvest time are hard to avoid, and their severity in fields can range from “clean” to a “weedy mess.” Harvesting weedier fields last can help limit the movement of weed seeds and reduce future weed pressure.

Waterhemp growing at the edge of a soybean field nearing harvest.

Row Crop and Noxious Weed Surveys

Controlling noxious weeds and weeds in row crops is a challenge every year. SDSU Extension has created two online surveys to capture the current climate of weed control in South Dakota.