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Evaluation of the entomopathogenic fungi Metarhizium anisopliae and Beauveria bassiana against the red palm weevil Rhynchophorus ferrugineus
Year:
2006
Source of publication :
Phytoparasitica
Authors :
Gindin, Galina
;
.
Glazer, Itamar
;
.
Levski, Shlomit
;
.
Soroker, Victoria
;
.
Volume :
34
Co-Authors:
Gindin, G.
Levski, S.
Glazer, I.
Soroker, V., Dept. of Entomology and Nematology, ARO, Volcani Center, Bet Dagan 50250, Israel
Facilitators :
From page:
370
To page:
379
(
Total pages:
10
)
Abstract:
The red palm weevil (RPW, Rhynchophorus ferrugineus (Olivier) (Coleoptera: Curculionidae) is one of the most severe pests of various palm species, including date palms. While examining the susceptibility of RPW to two entomopathogenic fungi, Metarhizium anisopliae and Beauveria bassiana, strains of the former were found to be more virulent than those of the latter, achieving 100% larval mortality within 6-7 days. The most virulent strains of M. anisopliae were then tested on RPW eggs and adults. Incubation in a substrate treated with M. anisopliae spores increased egg mortality and reduced their hatchability. The total percentage mortality of eggs and hatched larvae was 80-82%, compared with 34% in the controls. RPW adults were challenged with two types of fungal formulation: dry powder and aqueous suspension. Cumulative adult mortality of 100% was achieved in 2-3 weeks for the dry rice-based formulation and in 4-5 weeks for the spore suspension. As a result of decreased longevity, treated females had a shorter oviposition period and three times lower fertility than the controls. Possible strategies for fungus application are discussed in the light of the high susceptibility of eggs and larvae to fungal infection.
Note:
Related Files :
Beauveria
Beauveria bassiana
Cordyceps bassiana
fungi
Phoenix dactylifera
Rhynchophorus ferrugineus
RPW
Show More
Related Content
More details
DOI :
10.1007/BF02981024
Article number:
0
Affiliations:
Database:
Scopus
Publication Type:
article
;
.
Language:
English
Editors' remarks:

Itamar's own PDF.

ID:
28334
Last updated date:
02/03/2022 17:27
Creation date:
17/04/2018 00:38
Scientific Publication
Evaluation of the entomopathogenic fungi Metarhizium anisopliae and Beauveria bassiana against the red palm weevil Rhynchophorus ferrugineus
34
Gindin, G.
Levski, S.
Glazer, I.
Soroker, V., Dept. of Entomology and Nematology, ARO, Volcani Center, Bet Dagan 50250, Israel
Evaluation of the entomopathogenic fungi Metarhizium anisopliae and Beauveria bassiana against the red palm weevil Rhynchophorus ferrugineus
The red palm weevil (RPW, Rhynchophorus ferrugineus (Olivier) (Coleoptera: Curculionidae) is one of the most severe pests of various palm species, including date palms. While examining the susceptibility of RPW to two entomopathogenic fungi, Metarhizium anisopliae and Beauveria bassiana, strains of the former were found to be more virulent than those of the latter, achieving 100% larval mortality within 6-7 days. The most virulent strains of M. anisopliae were then tested on RPW eggs and adults. Incubation in a substrate treated with M. anisopliae spores increased egg mortality and reduced their hatchability. The total percentage mortality of eggs and hatched larvae was 80-82%, compared with 34% in the controls. RPW adults were challenged with two types of fungal formulation: dry powder and aqueous suspension. Cumulative adult mortality of 100% was achieved in 2-3 weeks for the dry rice-based formulation and in 4-5 weeks for the spore suspension. As a result of decreased longevity, treated females had a shorter oviposition period and three times lower fertility than the controls. Possible strategies for fungus application are discussed in the light of the high susceptibility of eggs and larvae to fungal infection.
Scientific Publication
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