Etude de l'attraction exercée par divers champignons sur Tarsonemus fusarii COOREMAN 1941

Geeraerts, Jacqueline

doi:10.1111/j.1439-0507.1974.tb04246.x

Cited by 4 publications

(2 citation statements)

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“…contaminant of fungal laboratory cultures and was shown to feed on a wide range of fungal species (Geeraerts, 1974;Gotz and Reichenberger, 1953). Fungal food preference was tested for Tarsonemus confusus, indicating that such preference exists, and specific fungus can alter the mites' functional sex ratio (Belczewski and Harmsen 1997).…”

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Impact of a tarsonemid prey mite and its fungal diet on the reproductive performance of a predatory mite

Vangansbeke

Duarte

Merckx

et al. 2020

Preprint

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Phytoseiid predatory mites are the most important group of biocontrol agents currently implemented in protected cultivations worldwide. The possibility to produce these predators at high densities on factitious prey mites is a crucial factor for their success. Commonly used factitious prey mites comprise mainly species belonging to the cohort of Astigmatina. In the present study, we investigated the potential of tarsonemid prey mites as a food source for the spider mite predator Neoseiulus californicus (McGregor) (Acari: Phytoseiidae). The oviposition of N. californicus on mixed stages of Tarsonemus fusarii Cooreman (Acari: Tarsonemidae) was similar to that on its natural prey, the two-spotted spider mite Tetranychus urticae Koch (Acari: Tetranychidae). As most tarsonemids are specialized fungus-feeders, we tested the effect of different fungal species on the growth of T. fusarii. Subsequently, we analysed the impact on the fungal growing medium on the oviposition of N. californicus. The fungal growing medium of T. fusarii had a significant effect on the reproductive output of the predatory mite, having a negative effect. When T. fusarii was separated from the rearing medium, these detrimental effects were not observed. The present study shows the potential of using tarsonemid prey mites in the production of predatory mites.

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confidence: 99%

Impact of a tarsonemid prey mite and its fungal diet on the reproductive performance of a predatory mite

Vangansbeke

Duarte

Merckx

et al. 2020

Preprint

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“…Ceci explique qu'elle est souvent signalke dans les laboratoires de mycologie et de bactkriologie oh elle dCtruit les microorganismes et introduit des contaminations. Tarsonemus fusarii(GEERAERTS, 1974).Notons que nous n'avons jamais remarquk de diffkrences au point de vue rkponse aux diffkrentes cultures de champignons entre les acariens klevks sur farine et ceux klevks sur champignons. C'est pourquoi nous utilisons indiffkremment les uns ou les autres.…”

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Etude par le test en croix de I'attraction exercée par divers champignons sur Tyrophagus putrescentiae (Schrank, 1781)

Geeraerts

1975

Mycoses

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Résumé Nous avons étudié l'attraction exercée par différentes cultures de champignons sur un acarien commun des produits emmagasinés: Tyrophagus putrescentiae en utilisant le test en croix. Celui‐ci s'est montré plus précis que le tube en Y. Parmi les 22 espèces testées, Stemphylium sp., Fusarium oxysporum, Trichothecium roseum et Penicillium sp. se sont montrées les plus attractives, Aspergillus niger et A. can‐didus l'étant par contre fort peu. Summary A brief introduction presents the usual biotopes of Tyrophagus putrescentiae and explains the conditions requested to raise successfully this mite (Acarina) in the laboratory. Two tests have been used: the Y‐tube and the cross test to compare the attraction on this mycophageous mite of some fungi maintened in culture. In a first series of essays the time necessary to produce a maximum attraction, or approximately near to this maximum, was fixed. Then the minimum percentage requested for an effective attraction with the cross test was established. Our results have been also compared with those obtained with the two tests by Yoshizawa et al. (1972). The value of the two tests has been calculated with a culture of Trichothecium roseum and by comparing the results for the two tests. It is clear that the cross test is superior to the Y‐tube. In a last set of essays the cross test was used to determine the attraction of 22 species of fungi on T. putrescentiae. Stemphylium sp., Fusarium oxysporum, T. roseum and Penicillium sp. proved to be the most attractive whereas Aspergillus niger and A. candidus are the less active attractants. So far we have not been able to decide what is the exact nature of the attractive components. Zusammenfassung Eine kurze Einführung stellt die üblichen Biotypen von Tyrophagus putrescentiae vor und weist auf die erforderlichen Bedingungen hin, urn diese Milbe (Acarina) erfolgreich im Laboratorium zu halten. Zwei Methoden wurden angewandt: Der Y‐Röhrchen‐ und der Kreuztest, um die An‐ziehungskraft einiger in der Kultur gehaltener Pilze auf diese mykophage Milbe zu steigern. In einer ersten Versuchsserie wurde die notwendige Zeit festgesetzt, um eine maximale oder eine annähernd maximale Anziehungskraft zu erzeugen. Dann wurde mit dem Kreuztest der erforderliche Mindestprozentsatz für eine wirkungsvolle Anziehungskraft ergründet. Unsere Ergebnisse wurden auch mit denen verglichen, die Yoshizawa et al. (1972) mit den beiden Testen erhalten haben. Der Wert der beiden Teste ist mit einer Kultur von Trichothecium roseum errechnet und die Ergebnisse von beiden Testen sind verglichen worden. Es ist klar, daß der Kreuztest dem Y‐Röhrchentest überlegen ist. In einer letzten Versuchsreihe wurde der Kreuztest benutzt, um die Anziehungskraft von 22 Pilzarten auf T. putrescentiae zu bestimmen. Es stellte sich heraus, daß Stemphyli‐um sp., Fusarium oxysporum, T. roseum und Penicillium sp. die größte, hingegen Asper‐gillus niger und A. candidus die geringste Anziehungskraft hatten. Bisher sind wir nicht in der Lage gewesen zu entscheiden, wie die genaue Bes...

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Impact of a tarsonemid prey mite and its fungal diet on the reproductive performance of a predatory mite

et al. 2021

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Phytoseiid predatory mites are the most important group of biocontrol agents currently implemented in protected cultivations worldwide. The possibility to produce these predators at high densities on factitious prey mites is a crucial factor for their success. Commonly used factitious prey mites comprise mainly species belonging to the cohort of Astigmatina. In the present study, we investigated the potential of tarsonemid prey mites as a food source for the spider mite predator Neoseiulus californicus (McGregor) (Acari: Phytoseiidae). The oviposition of N. californicus on mixed stages of Tarsonemus fusarii Cooreman (Acari: Tarsonemidae) was similar to that on its natural prey, the two-spotted spider mite Tetranychus urticae Koch (Acari: Tetranychidae). As most tarsonemids are specialized fungus-feeders, we tested the effect of different fungal species on the growth of T. fusarii. Subsequently, we analysed the impact on the fungal growing medium on the oviposition of N. californicus. The fungal growing medium of T.fusarii had a significant effect on the reproductive output of the predatory mite, having a negative effect. When T. fusarii was separated from the rearing medium, these detrimental

show abstract

Etude de l'attraction exercée par divers champignons sur Tarsonemus fusarii COOREMAN 1941

Cited by 4 publications

References 8 publications

Impact of a tarsonemid prey mite and its fungal diet on the reproductive performance of a predatory mite

Impact of a tarsonemid prey mite and its fungal diet on the reproductive performance of a predatory mite

Etude par le test en croix de I'attraction exercée par divers champignons sur Tyrophagus putrescentiae (Schrank, 1781)

Impact of a tarsonemid prey mite and its fungal diet on the reproductive performance of a predatory mite

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