Northern corn leaf blight (NCLB) has been reported in numerous fields in Iowa. Most of the reports have come from central and western Iowa, but since the pathogen that causes this disease is spread by wind and rain, the disease could be more widespread.
Fungicide use in corn production in the United States was a rare practice for much of its history as a commercial grain. Only recently has fungicide increased rapidly, specifically between 2000 and 2010. While the use of fungicide on the crop grew exponentially, plant pathologists did not record an increase in fungal foliar disease pressure in corn.
On this episode of the I See Dead Plants Podcast, host Ed Zaworski speaks with Dr. Travis Faske about the small round worms known as nematodes. They also discuss nematode abundance and diversity on earth, including a 28 foot long sperm whale placenta parasite. But mostly about root knot nematodes on soybean. The research publication discussed is "Movement of Seed- and Soil-Applied Fluopyram in Soil Columns" published in the Journal of Nematology. Dr. Faske is currently a plant pathology professor and extension specialist at the University of Arkansas.
An Overview of Root Knot Nematodes from the Crop Protection Network.
Root Knot Nematode from the American Phytopathological Society.
How to Control Root Knot Nematode from the University of Arkansas Division of Agriculture.
How to cite this podcast:
Zaworski, E. (Host) and Faske, T. (Interviewee). Vampire Unicorn Worms or How to Drain the Life from Soybeans with a Knife-Straw on Your Face. S1:E7 (Podcast). January 13, 2022. In I See Dead Plants. Crop Protection Network. https://www.ipm.iastate.edu/podcasts/i-see-dead-plants/vampire-unicorn-w...