News Briefs March 11, 2019


News You Can Use

#Plant19 has already begun in the south! Pioneer field agronomists are answering farmers’ questions to help deliver a strong 2019 growing season. 

This week’s media briefs highlight using the GDU calculator, water retention’s effect on nutrient availability, soil temperature and corn emergence, and the importance of resistance rotation in insecticides. 

Want to speak with an expert on these or other topics? Contact Kacey Birchmier at

In the News GDU Calculator

The Pioneer GDU (Growing Degree Unit) calculator provides farmers their total GDUs in a given time period, year-to-year comparisons and fourteen day forecasts by location to help with planting decisions…See more

Water Retention and Nutrient Availability in Soil

Soil water retention is essential for corn growth. Soil texture, bulk density and organic matter are the primary factors determining a soil’s capacity for water retention and a plant’s ability to extract available water. Soil compaction restricts corn root growth and reduces the ability of soil to retain and supply water to crops…Read more

Soil Temperature and Corn Emergence

Because corn is a traditionally warm-season crop, soil temperatures play a key role in emergence and seedling health. Ideally, soil temperatures are between 85°F and 90°F during germination and emergence. Cool conditions put significant stress on seedlings, especially during imbibition. Warmer, moist conditions for the first two days after planting can mitigate much of the cold stress…Read more

Crop Insights

The Importance of Resistance Rotation for Long-Term Profitability

As resistance becomes more of a challenge, farmers should rotate modes of action to mitigate losses. Rotating modes of action on insecticides maximizes insect control and minimizes resistance. Before each season, farmers should review their integrated pest management program. 

“Many insect pests have a high propensity to develop resistance, including the diamondback moth — one of the most difficult pests to control and one of the most important pests when it comes to resistance management. They are adept at surviving, making them the most problematic pests over numerous crops and multiple generations,” said Shine Taylor, North America Biology Leader Insecticides, Corteva Agriscience™, Agriculture Division of DowDuPont…Read more

Kacey Birchmier Kacey Birchmier

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