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South Central MN | SCN can still be found in a field 10 years later, although the populations will be far smaller. Once you have it you really don't get rid of it. (Kind of like clubroot for the canola guys in Canada I guess.)
Sweet clover is a host, as are a few other cover crops.
Crimson clover may be a host as well.
Some stuff falls into the "poor host" category, may cause the eggs to hatch but few survive if any
Some oilseed radishes have been breed for helping kill SCN... The radish roots give off the stuff that causes the eggs to hatch, and then the actual root makes them ill or something so they never reproduce. Supposedly rather effective for reducing a large population. | |
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Soybean Cyst Nematode
