Studies on Occurrence and Distribution of Soybean Cyst Nematode in Liaoning Province
Soybean cyst nematode (SCN Heterodera glycines Ichinohe) is one of the most important nationwide soybean pests in China.Density of SCN in 26 areas of Liaoning Province during 2006 ~ 2008 was determined for clarifying the distribution of SCN.The results showed that Heterodera glycines was found in 88% areas,and the number of cyst per 100g soil was more than 10 in 73% areas.The cyst density of Kangping was the biggest,up to 54.33,but the cyst density of Kaiyuan,Donggang and Huanren was 0,most areas were between 20 to 55.
Heterodera glycines IchinoheCyst densityDistributionLiaoning Province