Resist SCN resistance: Soybean cyst nematode can resist resistant soybean varieties you are planting

摘要

When soybean cyst nematode (SCN) first attacked Jim Legvold's soybeans in the 1990s, he quickly thwarted it by planting SCN-resistant soybeans. End of story? Not quite. Over time, SCN outfoxed the resistant beans. "Even though I was planting resistantvarieties, the SCN wasn't going away," says the Vincent, Iowa, farmer. "It actually became worse, with cyst counts in the soil going up. If you're growing SCN-resistant beans, that isn't what should occur. They should be going down."