Results 91 to 100 of about 301 (112)
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Journal of Invertebrate Pathology, 1972
Abstract The yellowjacket workers of Vespula pennsylvanica and V. rufa atropilosa from Northern California and Vespula sp. from the Netherlands were all susceptible to attack by the agriotos or Leningrad strain of Neoaplectana carpocapsae . Infection occurred after the adult yellowjackets ingested the third-stage infective nematodes that had ...
G O, Poinar, F, Ennik
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Abstract The yellowjacket workers of Vespula pennsylvanica and V. rufa atropilosa from Northern California and Vespula sp. from the Netherlands were all susceptible to attack by the agriotos or Leningrad strain of Neoaplectana carpocapsae . Infection occurred after the adult yellowjackets ingested the third-stage infective nematodes that had ...
G O, Poinar, F, Ennik
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Canadian Journal of Zoology, 1989
Under ideal exposure conditions, the nematode Heterorhabditis heliothidis (strain T327) killed members of all instars of the cockroach Periplaneta americana. Mortality was greatest in young instars and decreased with host age such that few larger nymphs or adults were killed. Infection led to the production of dauer juveniles in young cockroaches.
S. Zervos, J. M. Webster
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Under ideal exposure conditions, the nematode Heterorhabditis heliothidis (strain T327) killed members of all instars of the cockroach Periplaneta americana. Mortality was greatest in young instars and decreased with host age such that few larger nymphs or adults were killed. Infection led to the production of dauer juveniles in young cockroaches.
S. Zervos, J. M. Webster
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Canadian Journal of Zoology, 1991
Larvae of Galleria mellonella were kept at temperatures of 5, 10, 15, 20, 25, and 30 °C, and exposed to six levels of inocula (5, 10, 25, 50, 100, and 500 infective juveniles/larva) of Heterorhabditis heliothidis and Steinernema glaseri. Temperature and inoculum level significantly affected time to first emergence, duration of emergence, and yield of ...
S. Zervos, S. C. Johnson, J. M. Webster
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Larvae of Galleria mellonella were kept at temperatures of 5, 10, 15, 20, 25, and 30 °C, and exposed to six levels of inocula (5, 10, 25, 50, 100, and 500 infective juveniles/larva) of Heterorhabditis heliothidis and Steinernema glaseri. Temperature and inoculum level significantly affected time to first emergence, duration of emergence, and yield of ...
S. Zervos, S. C. Johnson, J. M. Webster
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Cytochemical characterization of the cuticle of Caenorhabditis elegans (Nematoda: Rhabditoidea).
Journal of submicroscopic cytology and pathology, 1992At the ultrastructural level, the Caenorhabditis elegans (Maupas, 1900; Doughert, 1953) cuticle shows the presence of six layers: epicuticle, external cortical, internal cortical, intermediate, fibrous and basal. Two techniques were used for carbohydrate localization: the periodic acid-thiosemicarbazide-silver proteinate (Thiéry) and gold-labelled ...
C A, Peixoto, W, De Souza
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Transactions of the Royal Society of South Australia, 2018
ABSTRACTThree species of Parastrongyloides previously described from the small intestine of Australian marsupials are reviewed and redescribed from new material and in some instances new host speci...
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ABSTRACTThree species of Parastrongyloides previously described from the small intestine of Australian marsupials are reviewed and redescribed from new material and in some instances new host speci...
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Molecular Diversity of Nematode Parasites in Afrotropical Reed Frogs (Hyperolius spp.)
Diversity, 2020Ulrich Sinsch, Maximilian Dehling
exaly