Joel DeJong

Joel DeJong has over 20 years of experience working closely with farmers on integrated management of pest populations, crop management issues, and nutrient and manure management planning. As the extension field agronomist in northwest Iowa, he currently educates crop producers on proper nutrient and pest management practices, and oversees annual pesticide applicator continuing education sessions; focusing on environmental risk, safety, and proper integrated pest management. In addition, DeJong also trains company agronomists on research-based crop production practices, and teaches certified crop advisers on production, nutrient, and pest management issues.


You can subscribe to his Crop Update Newsletter for timely information that pertains to the farmers, ag producers, and others in northwest Iowa.

Joel DeJong
August 28, 2019 3:06 PM

Check out what ISU Extension and Outreach field agronomists in NW Iowa are seeing and hearing in their areas regarding crop progress and issues showing up in crop fields.

Crop Production
June 22, 2016 2:07 PM

On Friday evening of last week (June 17), a storm system rolled through the northwest corner of Iowa. Winds with this system were clocked in the 70+ mph range, and one weather station measured wind gusts over 100 mph. Many large trees were snapped off, grain bins damaged, and other facilities...

Crop Production
May 13, 2016 11:16 AM

In the NW corner of Iowa it has, once again, been a wet week. There have even been localized rains as high as 6" for the week, although most received significantly less. Getting back to planting, it's has been difficult, and we are lagging the rest of the state in planting progress. We aren't...

Crop Production