Soybean cyst nematodes are reproducing on PI 88788
"Many scientists have noticed a buildup in recent years, including Senyu Chen, University of Minnesota plant pathologist.
Chen oversees SCN testing at the Southern Research and Outreach Center, Waseca. There was an average of almost 1,000 eggs per half-cup sample tested at the SCN lab in 2008. By 2013, the average egg count had increased to 2,000 eggs per half cup.
The SCN’s ability to reproduce on the very popular PI 88788 source of resistance is not limited to southern Minnesota where SCN was first officially identified in 1979. It extends to all 67 Minnesota counties that have SCN infestations – although some scientists say that PI 88788 is still working well in northwest Minnesota."