| paraphyletic genus ditylenchus filipjev (nematoda, tylenchida), corresponding to the d. triformis-group and the d. dipsaci-group scheme. | the genus ditylenchus has been divided into 2 groups: the ditylenchus triformis-group, and the ditylenchus dipsaci-group based on morphological and biological characters. a total of 18 populations belong to 5 species of ditylenchus was studied: ditylenchus africanus, ditylenchus destructor, ditylenchus myceliophagus and dipsaci, ditylenchus weischeri, the first 3 belong to the ditylenchus triformis-group, the last 2 the ditylenchus dipsaci-group. the species of ditylenchus triformis-group were c ... | 2016 | 27103870 |
| occurrence of ditylenchus weischeri and not d. dipsaci in field pea harvest samples and cirsium arvense in the canadian prairies. | the stem nematode, a parasite of the herbaceous perennial weed, cirsium arvense (l.) scop. and identified as ditylenchus dipsaci (kühn) filipjev, was reported in the canadian prairies in 1979. recently, d. weischeri chizhov parasitizing cirsium arvense was described in russia, and it has been shown that this species is not an agricultural pest. in this study, we examined ditylenchus species found in field pea (pisum sativum l.) grain harvest samples in 2009 and 2010 and from c. arvense shoots in ... | 2014 | 25580031 |