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A car being towed a flooded, washed out gravel road by a national guard truck. Photo by Senior Master Sgt. David H. Lipp, U.S. Department of Defense

Floodwater: Road Crossing Hazards

During flooding, and when driving in the countryside we oftentimes encounter a creek or stream running on top of the road. Be aware that a course of water running over the road can turn into a very dangerous, even life-threatening situation if you attempt to cross it with your vehicle.

crop fields flooded by spring snow melt. USDA Photo by Lance Cheung

Managing Soil and Soil Fertility After Flooding

During floods, your fields will experience different amounts of erosion, sediment deposition, and crop residue accumulation. To avoid compaction of these soils it is crucial to let soils drain and dry out sufficiently before removing any large debris from fields or working the soil.

wheat field

2018 Field Plot Summaries for Wheat Disease Management Trials

The wheat disease management field experiments conducted in the 2018 growing season evaluated several experimental and commercially available fungicides for managing foliar, head or root diseases of spring wheat. Foliar and spike/head diseases incidence and severity were assessed. The field experiments were implemented at Volga Research Farm and Northeast Research Farm (NERF) near South Shore, SD. Results of the same experiment may vary between Volga and Northeast due to environmental differences between the two locations.

A sprawling sorghum field ready for harvest

Sorghum Weed Control

Early competition, especially from grass, is critical for successfully controlling weeds in sorghum. There are preemergence as well as postemergence herbicides available for this crop. Early treatment provides the best control of broadleaved weeds with crop stage also being a critical factor for some postemergence treatments.

three grain bins in a flooded farm yard. Photo by John Shea, FEMA

Stored Grains and Flooding

According to the Food and Drug Administration, grain inundated by watercourses is considered adulterated and must be destroyed. The portion of the grain that is not affected by the water can still be salvaged for its use.

bottom part of a corn plant in soil with half of the roots exposed to show the seed trench (side-wall) compaction.

Planting Into Wet Soils

It is evident that there are high chances of planting into wet soils this spring. This is not a good decision when normal soil conditions appear to be attainable, but this year we may not have a choice.

A flooded garden

Flooded Gardens

Soil from gardens that were recently flooded may not be safe for growing fruit and vegetables this summer. Depending on the location, flood waters may contain contaminants or disease-causing organisms.

a flooded alfalfa field

Managing Flooded Alfalfa

As floodwaters rise again in parts of South Dakota, spring planting seems to feel further and further away. One crop that is often overlooked in the hustle and bustle of the approaching planting season is alfalfa.

Two common caterpillar pests of corn. Top: Corn earworm caterpillar. Bottom: European corn borer.

A Case of Mistaken Caterpillar Identity

Tweets about European corn borer (Ostrinia nubilalis) caterpillars in the stems of conventional corn and feeding in the whorls of corn are crossing my Twitter feed. Unfortunately, there is a problem with some of these tweets. Not all of the caterpillars that are being identified as European corn borer caterpillars are actually European corn borer caterpillars!

Three colored bean leaf beetles. From left: brown, red, and yellow.

Bean Leaf Beetles Are Back: Adults Observed Near Beresford

Earlier this year, we observed a large emergence of overwintering bean leaf beetles throughout much of the state. We are again observing quite a few bean leaf beetles beginning to emerge. These emerging beetles are the result of overwintering beetles mating and laying eggs.