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Crop Treatments

All Crop Treatments Content

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.

A close up view of the stem of palmer amaranth which is hairless.

Identification and Management of Palmer Amaranth in South Dakota

Guide for the identification and management of Palmer Amaranth in South Dakota

A drop of dew on a green leaf.

How to Choose the Right Adjuvant for the Job

With the rise of herbicide-resistant weeds, the use of an adjuvants is also on the rise and may be necessary to help control resistant weeds.

A red, tractor-mounted sprayer with its tank being flushed by a hose connected to a large truck.

General Cleaning Recommendations for Sprayer Equipment

Crop damage could occur if sprayer clean-out is overlooked or not properly conducted. It is critical to always follow the procedure specified on the herbicide or commercial cleaner label to completely remove herbicide residue from the sprayer system.

An unplanted field with weeds growing throughout.

Managing Weed Seed in 2020

Producers need to plan in advance on how to deal with bare fields that contain an overabundance of weeds. Weeds in these fields have deposited significant amount of seeds on the soil surface, which can easily germinate when adequate moisture and temperature are available.

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

A Tricky Task: Removing Dicamba From Sprayers

With the introduction of many new plant growth regulator herbicides, such as dicamba-based, and 2,4-D choline products, sprayer system cleanout has become even more critical before spraying resumes this growing season.

A red, tractor-mounted sprayer with its tank being flushed by a hose connected to a large truck.

Preparing Spray Solutions: Mixing Order

Before mixing any pesticide always check the pesticide label for instructions on compatibility of two or more pesticides. Some herbicides and carriers require a compatibility agent, some are not compatible with a compatibility agent.

A patch of soil with kochia weeds growing throughout.

Temperature and Herbicide Performance

In South Dakota, the spring can come with a wide range of temperature fluctuations. This will affect the performance of burndown herbicides. Depending upon the target weed, type of herbicide and application rate, there will likely be decreased weed control in cooler temperatures.

A farmer watching the sun rise in a bare, unplanted field.

Crop Tolerance to Soil Herbicide Residual

Some herbicides can persist in soil, especially dry soil. Herbicide carryover could be an issue in 2021 across the state depending upon last year’s moisture levels and field conditions.