Experiments and simulation studies on the system Lolium perenne - Tylenchorhynchus dubius

A.L. den Toom

Research output: Thesisinternal PhD, WU


The host/parasite system Lolium perenne L./ Tylenchorhynchus dubius (Bütschli, 1873) Filipjev, 1936 was studied in experiments and by simulation, to elucidate the nature and functioning of the relationship between pasture and ectoparasitic nematodes.

The influence of temperature and soil moisture on the system and the incidence of tolerance and resistance in the host were studied in experiments under controlled conditions.

A mathematical simulation model was developed for the host/parasite system; preliminary models for the population dynamics of the nematode and the influence of the nematode on plant growth are presented.

Measurements and simulations indicate that the ratio of nematode numbers to young roots is a main determinant of the effect of the nematodes on plant growth. The role of T.dubius and other ectoparasitic nematodes in the failure of reseeded pastures is discussed.

Original languageEnglish
QualificationDoctor of Philosophy
Awarding Institution
  • Rabbinge, R., Promotor, External person
  • van der Wal, A.F., Co-promotor
Award date18 Sep 1990
Place of PublicationS.l.
Print ISBNs9789090035819
Publication statusPublished - 1990


  • plant pests
  • lolium
  • pratylenchus
  • heteroderidae
  • tylenchidae
  • grasslands
  • tylenchorhynchus


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