Soybean Cyst Nematode (SCN) is an important limiting factor of soybean yield in Michigan. SCN resistant varieties have had an important impact in reducing yield losses, however most of the acreage planted with resistant varieties is from just one source of resistance (PI88788) and SCN are beginning to successfully overcome this resistance and reproduce. Interestingly, Fred Warner’s data indicates that when SCN soil samples are taken from fields where only the most common (PI88788) source of resistance has been planted, a percentage of them are able to reproduce on Peking even though the nematodes have never been exposed to this variety. We want to investigate this further and evaluate the...
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#nematodes