| larvicidal activity of the symbiotic bacterium xenorhabdus japonicus from the entomopathogenic nematode steinernema kushidai against anomala cuprea (coleoptera:scarabaeidae). | the entomopathogenicity of the symbiotic bacterium xenorhabdus japonicus and the nematode steinernema kushidai was determined. phase i and ii x. japonicus were cultured on an artificial medium and inoculated into the test insect or established into axenic s. kushidai populations. when 100, 1000, or 10,000 bacterial cells of phase i or ii were directly injected into the hemocoels of 3rd instar cupreous chafer, anomala cuprea, both phases in the late log period killed 100% of the larvae by the 2nd ... | 1996 | 8858911 |
| biological control agents for white grubs (coleoptera: scarabaeidae) in anticipation of the establishment of the japanese beetle in california. | we tested biological control agents for the control of 3rd-instar scarab turfgrass pests, both for the masked chafer cyclocephala hirta leconte and the japanese beetle, popillia japonica newman. the former species is endemic in california whereas the latter, although not yet established, constitutes a permanent serious threat to agriculture and horticulture in california. we conducted experiments using c. hirta in california and p. japonica in new jersey. a field trial conducted in 2 different c ... | 2000 | 14658514 |
| xenorhabdus japonicus sp. nov. associated with the nematode steinernema kushidai. | a new species, xenorhabdus japonicus, is proposed as the bacterial symbiont of steinernema kushidai isolated from field soil in shizuoka prefecture, japan. xenorhabdus japonicus could be distinguished phenotypically and genetically from other xenorhabdus spp. the type strain of the species, sk-1, a gram-negative, facultative anaerobe and peritrichously flagellated rod, has colonies with primary and secondary forms. the strain can be differentiated from the type strain of xenorhabdus nematophilus ... | 1994 | 24420949 |
| virulence of entomopathogenic nematodes to the western masked chafer cyclocephala hirta (coleoptera: scarabaeidae). | predictability is a key challenge in biological control of white grubs with entomopathogenic nematodes. most field test failures have been attributed to the use of inappropriate nematode strains. we evaluated several species and strains of entomopathogenic nematodes (heterorhabditidae and steinernematidae) against chafer cyclocephala hirta in a soil and pot bioassay at 25 degrees c. the nj65 strain of steinernema glaseri, isolated from new jersey, outperformed all other steinernematid and hetero ... | 1998 | 9589628 |