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Observations On the Predation Abilities of Some Soil Dwelling Predatory Nematodes

Observations On the Predation Abilities of Some Soil Dwelling Predatory Nematodes OBSERVATIONS ON THE PREDATION ABILITIES OF SOME SOIL DWELLING PREDATORY NEMATODES BY R. W. SMALL1) and P. GROOTAERT2) Instituut voor Dierkunde, Ledeganckstraat 35, Gent, Belgium The predation abilities of Prionchulus punctatus, Mononchus aquaticus, Butlerius degrissei, Labronema vulvapapillatum and Neoactinolaimus duplicidentatus on a range of prey species were observed in laboratory cultures. Only Panagrellus redivivus was easily wounded by all the predators; other free- living and plant ectoparasitic species were relatively resistant to predation. Migratory stages of plant endoparasites were moderately susceptible to attack. These results are discussed in terms of the predators' role as natural control agents of plant parasitic nematodes. Key words: Predation, biological control, feeding, ecology. Information on the predation abilities of predatory nematodes is sparse and their assessment as potential biological control agents has therefore been large- ly speculative. Initial interest (Cobb, 1917; Steiner & Heinly, 1922; Thorne, 1927; Linford & Oliveira, 1937) gave inconclusive results but Christie (1960) considered further studies would be of interest and possibly of practical impor- tance. This view was not shared by Webster (1972) or Jones (1974); the latter argued that non-specific predators rarely exert more than partial control and were therefore unlikely to make good biological control agents. http://www.deepdyve.com/assets/images/DeepDyve-Logo-lg.png Nematologica Brill

Observations On the Predation Abilities of Some Soil Dwelling Predatory Nematodes

Small, R.W.; Grootaert, P.
Nematologica , Volume 29 (1): 10 – Jan 1, 1983
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Publisher
Brill
Copyright
Copyright © Koninklijke Brill NV, Leiden, The Netherlands
ISSN
0028-2596
eISSN
1875-2926
DOI
10.1163/187529283X00230
Publisher site
See Article on Publisher Site

Abstract

OBSERVATIONS ON THE PREDATION ABILITIES OF SOME SOIL DWELLING PREDATORY NEMATODES BY R. W. SMALL1) and P. GROOTAERT2) Instituut voor Dierkunde, Ledeganckstraat 35, Gent, Belgium The predation abilities of Prionchulus punctatus, Mononchus aquaticus, Butlerius degrissei, Labronema vulvapapillatum and Neoactinolaimus duplicidentatus on a range of prey species were observed in laboratory cultures. Only Panagrellus redivivus was easily wounded by all the predators; other free- living and plant ectoparasitic species were relatively resistant to predation. Migratory stages of plant endoparasites were moderately susceptible to attack. These results are discussed in terms of the predators' role as natural control agents of plant parasitic nematodes. Key words: Predation, biological control, feeding, ecology. Information on the predation abilities of predatory nematodes is sparse and their assessment as potential biological control agents has therefore been large- ly speculative. Initial interest (Cobb, 1917; Steiner & Heinly, 1922; Thorne, 1927; Linford & Oliveira, 1937) gave inconclusive results but Christie (1960) considered further studies would be of interest and possibly of practical impor- tance. This view was not shared by Webster (1972) or Jones (1974); the latter argued that non-specific predators rarely exert more than partial control and were therefore unlikely to make good biological control agents.

Journal

Nematologica – Brill

Published: Jan 1, 1983

Keywords: ecology; biological control; feeding; Predation

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