Corn can face many different stresses that can reduce stands, such as cold or wet soils, insect feeding, cold temperatures and unfavorable weather conditions.
There are several potential common causes that lead to emergence issues, stand loss and non-uniform stands during early-season corn development. According to DuPont Pioneer, one of the keys to evaluation is to figure out what is causing the current variability and to try to prevent some­thing similar from occurring in the future. Taking time to investigate now may help you see changes that can be made to improve corn germination and emergence in the future.
Stress emergence ratings are available to help categorize hybrids for their genetic potential to emerge under stressful environmental conditions. The ratings are intended as a general guideline; growers should take into consideration specific field conditions in making hybrid decisions.
The level of early season stress tolerance is limited in corn. Thus, even hybrids with strong stress emergence will experience some level of injury and stand loss if the conditions are sufficiently severe.
The Pioneer Field360™ Notes app can help you track your early-season scouting notes. It streamlines and organizes field-by-field agronomic information for communication between DuPont Pioneer agronomists, sales professionals and growers. The tool is compatible with all tablet and mobile devices.
For more information related to corn emergence, including how to determine when to replant, visit

Source: DuPont Pioneer