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Crop Treatments

All Crop Treatments Content

Purple-brown caterpillar with orange head on a green corn leaf.

How to Identify Common Stalk Borers and Thresholds

As corn is being planted, it is important to remember that there are insect pests capable of injuring young, vegetative corn. One such pest is the common stalk borer. Although common stalk borer outbreaks are sporadic, when present in high numbers they can cause significant yield loss.

A healthy, growing soybean field. Farmyard in the background.

Soybean Growers Sought for On-Farm Research Program

May 15, 2019

SDSU Extension and the South Dakota Soybean Research and Promotion Council are seeking South Dakota soybean growers to participate in a farmer-led On-Farm Research Program.

Soybean, Plant, Crop Management, Crop Treatments, Soil Fertility

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 combine harvesting soybeans at dusk.

Field Studies: Blowing the Whistle on Marketing Claims

With technology surrounding today’s culture, data and marketing information has become a key part of life. The best way to determine if a product or practice is effective is to ask for the data and research backing a company’s claims. However, before a producer makes a decision, understanding the data and statistics is key.

a bare, freshly tilled field awaiting planting.

Field Studies: What do You Mean 5 Bushels Per Acre is Not Significant?

Utilizing sound research results to help make decisions on the farm is a wise business practice. It can be confusing, however, when you see two numbers that are clearly not the same labeled as “not significantly different.”

two side-by-side fields. The left is labeled "a". It has uniform rows and soil. The right is labeled "b". It has ununiform rows and varying soil quality.

Field Studies: Setting up a Trial

Increasingly, farmers are generating on-farm research data that encompasses a wide-range of practical topics. However, setting up those experiments so that the data is statistically valid is not necessarily common knowledge.

Two side-by-side field plots. The left field has corn planted, and the right has soybeans.

Field Studies: Replicated Comparisons vs. Side-by-Side Comparisons

How should a basic study be set up or laid out in the field? One very common approach is to divide a field in half and compare the halves or possibly compare two fields in close proximity and see which variety or practice yields highest. This approach can end with very misleading results because of the variability that exists across a field or fields due to many factors.

An empty grain bin full-air floor is plugged by insect webbing.

Stored Grain Pests: Spring Insect and Disease Issues

Grain storage is a key component in getting your crop to market. Aside from watching bins for spoilage, moisture, and temperature changes, make sure you are looking for signs of pest infestation.

A map of South Dakota with yellow and green circles indicating iverson risks at various locations throughout the state.

Use the SD Spray Tool for Inversion Detection and Weather for Pesticide Application

The SD Mesonet Spray Tool provides real-time weather data for pesticide applicators. This dedicated website for pesticide applicators uses the SD Mesonet weather data, which is updated every five minutes.

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

Pre-Emergence Herbicide Program a Good Idea

It is always good to start with a pre-emergence program to help prevent weeds from becoming resistant. Usually this is a different chemistry than what would be used post-emergence.