Susceptibility of Testacella haliotidea (Testacellidae: Mollusca) to a U.S. strain of Phasmarhabditis hermaphrodita (Rhabditidae: Nematoda)

This paper compares efficiency of preparations based on a parasitic nematode species Phasmarhabditis hermaphrodita with a molluscocide containing methiocarb as an effective substance. Parasitic nematodes by the family Agriolimacidae showed a significantly better effect on mortality and reduction of the percentage of damaged plants than the methiocarb-based preparation. Under laboratory and field conditions, the efficiency of parasitic nematodes on the family Agriolimacidae ranged from 84% to 94% and from 81% to 94%, resp., while the percentages of damaged plants were minimal in both cases. The corresponding effects of the methiocarb-based molluscocide were only 35% and 21%, resp. The effect of parasitic P. hermaphrodita nematodes on members of the snail family Arionidae was not demonstrated both under laboratory and field conditons and the mortality was up to 6% with a total defoliation of plants. Under laboratory and field conditions, the mortality of slugs from the genus Arion after the application of methiocarb-based preparation was 53% and 38%, resp. However, the damage of plants was significant and it reached nearly 67% and 60% under laboratory and field conditions, resp.

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Pathogenicity of wild and commercial Phasmarhabditis hermaphrodita exposed to the pestiferous slug Deroceras invadens

Journal of Invertebrate Pathology ◽

10.1016/j.jip.2020.107435 ◽

2020 ◽

Vol 174 ◽

pp. 107435

Author(s):

James Cutler ◽

Robbie Rae

Keyword(s):

Deroceras Invadens ◽

Phasmarhabditis Hermaphrodita

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Field experiments using the rhabditid nematode Phasmarhabditis hermaphrodita or salt as control measures against slugs in green asparagus

Crop Protection ◽

10.1016/s0261-2194(03)00003-6 ◽

2003 ◽

Vol 22 (5) ◽

pp. 689-695 ◽

Cited By ~ 15

Author(s):

A. Ester ◽

K. van Rozen ◽

L.P.G. Molendijk

Keyword(s):

Field Experiments ◽

Control Measures ◽

Green Asparagus ◽

Phasmarhabditis Hermaphrodita

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Movement of the parasitic nematode Phasmarhabditis hermaphrodita in the presence of mucus from the host slug Deroceras reticulatum

Biological Control ◽

10.1016/j.biocontrol.2007.01.005 ◽

2007 ◽

Vol 41 (2) ◽

pp. 223-229 ◽

Cited By ~ 17

Author(s):

Simona Hapca ◽

John Crawford ◽

Robert Rae ◽

Michael Wilson ◽

Iain Young

Keyword(s):

Parasitic Nematode ◽

Deroceras Reticulatum ◽

Phasmarhabditis Hermaphrodita

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Phasmarhabditis hermaphrodita – a new model to study the genetic evolution of parasitism

Nematology ◽

10.1163/15685411-00003053 ◽

2017 ◽

Vol 19 (4) ◽

pp. 375-387 ◽

Cited By ~ 6

Author(s):

Robbie Rae

Keyword(s):

Molecular Mechanisms ◽

Phylogenetic Position ◽

Genomic Comparison ◽

Free Living ◽

New Model ◽

C Elegans ◽

Genetic Mechanisms ◽

Facultative Parasite ◽

Evolutionary Emergence ◽

Phasmarhabditis Hermaphrodita

The evolutionary genetic mechanisms that are responsible for the transition of free-living nematodes to parasites are unknown and current nematode models used to study this have limitations. The gastropod parasitePhasmarhabditis hermaphroditacould be used as a new model to dissect the molecular mechanisms involved in the evolution of parasitism.Phasmarhabditis hermaphroditais a facultative parasite of slugs and snails that, likeCaenorhabditis elegansandPristionchus pacificus, can also be maintained easily under laboratory conditions.Phasmarhabditis hermaphroditaandPhasmarhabditisspecies are easy to isolate from the wild and have been found around the world. The phylogenetic position ofPhasmarhabditisis ideal for genomic comparison with other clade 9 species such asC. elegansandP. pacificus, as well as mammalian and insect parasites. These attributes could makeP. hermaphroditaan excellent choice of model to study the evolutionary emergence of parasitism.

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