The SCN Coalition encourages soybean growers to talk to a trusted expert – a seed representative, crop consultant or university/extension specialist – to determine if they are using an effective source of SCN resistance and rotating sources of SCN resistance.
Iowa State University Nematologist Greg Tylka says most SCN-resistant varieties have the PI 88788 source of resistance, and in many soybean fields, the nematode is dragging down the yields of these varieties. “Not every SCN resistant variety with PI 88788 is equally good in terms of nematode control. Still, in many experiments, we see the Peking source of resistance out-yielding the best PI 88788 varieties,” he said. “And for 2021, soybean growers will have a third source of resistance sold by Syngenta under the Golden Harvest and NK Seeds brands. That source of resistance is PI 89772.”
In a new video series titled “Let’s Talk Todes,” Tylka and University of Missouri Plant Pathologist Kaitlyn Bissonnette explain why the SCN-resistant soybean variety a soybean grower selects can greatly impact their bottom line.