<i>Aspergillus flavus</i>as a pathogen of wasps,<i>Vespula</i>spp., in New Zealand

Glare, Travis R.; Harris, Richard J.; Donovan, B. J.

doi:10.1080/03014223.1996.9518093

Cited by 28 publications

(27 citation statements)

References 19 publications

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“…The other two fungal isolates used in the current study were A. flavus Link and T. harzianum T24; species of both have also been reported as an important entomopathogenic against several insect pests (Glare et al 1996;Shakeri and Foster 2007). The preliminary virulence test of the current study showed a larvicidal effect for T. harzianum T24 when applied at the higher conidial concentration (1 6 10 8 ml 71 ).…”

Section: Discussionmentioning

confidence: 87%

Virulence potential of some fungal isolates and their control-promise against the Egyptian cotton leaf worm,Spodoptera littoralis

El-Katatny

2010

Archives Of Phytopathology And Plant Protection

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A preliminary virulence test of four fungal isolates, Beauveria bassiana IMI 382302, Beauveria bassiana IMI 386701, Trichoderma harzianum T24 and Aspergillus flavus Link against larvae of Spodoptera littoralis was performed. The most effective isolates against larvae of S. littoralis were B. bassiana 302 and T. harzianum T24, which also showed the lower percentage of pupation compared with the other two isolates under the same conditions of treatments. Three concentrations (1 6 10 6 , 1 6 10 7 and 1 6 10 8 ml 71 ) of the aqueous conidial suspension of the four tested isolates were carried out against both larval and pupal stages of S. littoralis within five days post-treatment. T. harzianum T24 showed 80% larval mortality only when applied at the highest conidial concentration, while A. flavus showed 100% pupal mortality only, at all of its conidial concentrations. However, B. bassiana IMI 382302 showed relatively high dosedependant larval and pupal mortalities, while strain IMI 386701 of B. bassiana showed a very weak mortality against pupae at higher concentrations, and no virulence against larvae was recorded. Enzymatic and antibiosis bioassays of the four fungal isolates showed relatively high activities against Fusarium spp. for most of the tested isolates. Clear zone of enzyme activity on agar plates proportionally increased with increasing the concentration of enzyme substrate and prolongation of the incubation period. Mtabolites produced in the agar culture inhibited the growth of Fusarium spp. and the productivity differed greatly among isolates or strains of the same isolate. Volatile and non-volatile compounds produced by A. flavus Link showed a higher inhibition activity against Fusarium spp. compared with the other fungal isolates. The humoral antifungal response of insect host is relatively high compared to the anti-bacterial one. Injection of larvae with the immune sensitive bacteria Micrococcus luteus (5 6

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Section: Discussionmentioning

confidence: 87%

Virulence potential of some fungal isolates and their control-promise against the Egyptian cotton leaf worm,Spodoptera littoralis

El-Katatny

2010

Archives Of Phytopathology And Plant Protection

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“…Worker and larval Vespula were found to be susceptible to a range of fungal pathogens such as Metarhizium Sorokīn and Beauveria Vuill. (Glare et al 1996;Harris et al 2000;Rose et al 1999); however, to date no control has been developed.…”

Section: Management Optionsmentioning

confidence: 96%

Ecological effects and management of invasive alien Vespidae

et al. 2011

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“…This fungus has previously been noted as infecting leaf-cutting ants (A.N.M. Bot unpublished; Hughes and Boomsma, 2003;Steinhaus and Marsh, 1967), as well as Solenopsis fire ants, wasps, bees, and termites (Beal and Kais, 1962;Glare et al, 1996;Harris et al, 2000;Lund, 1965;Pereira and Stimac, 1997;Schmid-Hempel, 1998). It appears to be a facultative pathogen that is most probably soil borne, and thus which leaf-cutting ants will again come into regular contact with.…”

Section: Discussionmentioning

confidence: 99%