Host status of several green manure crops to Heterodera schachtii and green manure crop cultivation effect on nematode density

Abstract

Several cultivars of radish (Raphanus sativus) and white mustard (Sinapis alba) as a trap crop have been developed in Europe to control Heterodera schachtii. In this study, an inoculation test was carried out to find out whether there is a trap crop of H. schachtii among green manure crops such as radish and white mustard available in Japan. H. schachtii did not multiply on the radish ‘Kobuberi-daikon’ among the test cultivars and ‘Kobuberi-daikon’ was not effective in increasing the nematode population density in soil. As a result, it was concluded that the radish‘ Kobuberi-daikon’ may be a trap crop of H. schachtii.