This does not alter the marketing uncertainty for GMO production. Nor does it address the segregation and transportation issues. Therefore, carefully evaluate all aspects of GMO production. Soybean Cyst Nematode Losses Soybean cyst nematode losses are sometimes hard to identify. These microscopic pests attack the soybean root system.
Damage often shows itself in the hopper with reduced yields.
Yield loss ranges from four to seven percent annually in 90 percent of Illinois counties. The egg laying pest vary in population due to moisture, temperature, soil texture and chemistry, organic matter and root distribution. SCN reduces podding, but does not decrease seed weight or seed quality. However, SCN stress makes plants more susceptible to other pathogens or causes of reduced seed weight and quality. SCN-resistant varieties have yield loss in high populations of SCN eggs in the soil.