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Erschienen in:

12.08.2016

Entomopathogenic fungi as control agents of Thaumatotibia leucotreta in citrus orchards: field efficacy and persistence

verfasst von: C. A. Coombes, M. P. Hill, S. D. Moore, J. F. Dames

Erschienen in: BioControl | Ausgabe 6/2016

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Abstract

Entomopathogenic fungal isolates Beauveria bassiana (Balsamo) Vuillemin (Hypocreales: Cordycipitaceae) strain G Ar 17 B3 and Metarhizium anisopliae (Metchnikoff) Sorokin (Hypocreales: Clavicipitaceae) strain FCM Ar 23 B3 have been identified as effective control agents of the important citrus pest Thaumatotibia leucotreta (Meyrick) (Lepidoptera: Tortricidae) wandering fifth instars under laboratory conditions. This study is the first report on the ability of these isolates to persist and reduce T. leucotreta infestation in commercial citrus orchards in South Africa. A reduction in pest infestation of between 28 and 82 % upon trial completion was reported. Both isolates were recovered from soil samples collected five months post-application with high host density and moderate to high soil moisture favouring recovery. Low soil moisture negatively influenced the persistence of both isolates and the control efficiency of B. bassiana. These results provide evidence and support for the future use of these isolates against T. leucotreta thus warranting further investigation.

Vorheriger Artikel Interactions between foliage- and soil-dwelling predatory mites and consequences for biological control of Frankliniella occidentalis

Nächster Artikel Prospects of fungal endophytes in the control of Liriomyza leafminer flies in common bean Phaseolus vulgaris under field conditions

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Titel: Entomopathogenic fungi as control agents of Thaumatotibia leucotreta in citrus orchards: field efficacy and persistence
verfasst von: C. A. Coombes
M. P. Hill
S. D. Moore
J. F. Dames
Publikationsdatum: 12.08.2016
Verlag: Springer Netherlands
Erschienen in: BioControl / Ausgabe 6/2016
Print ISSN: 1386-6141
Elektronische ISSN: 1573-8248
DOI: https://doi.org/10.1007/s10526-016-9756-x

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