Important host plants and distribution of cricoematidae in China

Criconematidae nematode samples were identified from 2773 nematode samples from the soil of plant rhizosphere. The result showed that the rhizospheres of 246 species of 189 genera in 67 families contained Criconematidae nematode in 73 cities and counties of 17 provinces and autonomous regions in China.Criconematidae, widespread distribution in China, were found not only in the soils of crop rhizosphere of maize, soybean, but also in the root soil of flowers, trees, weeds and so on. Except in Tibet autonomous region and Qinghai Province becuse of the absence of data, Criconematidae were found in all provinces and autonomous regions in China, but large numbers of Criconematidae were found in 31 cities and counties in 8 provinces and autonomous regions.