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Pathogenicity of Verticillium lecanii to different developmental stages of the silverleaf whitefly, Bemisia argentifolii
Year:
2000
Source of publication :
Phytoparasitica
Authors :
Gindin, Galina
;
.
Raccah, Benjamin
;
.
Volume :
28
Co-Authors:
Gindin, G., Dept. of Nematology, Volcani Center, Bet Dagan 50205, Israel
Geschtovt, N.U., Dept. of Microbiology, Kazakh Res. Inst. of Plant Protect., Almaty 483117, Kazakhstan
Raccah, B., Dept. of Virology, ARO, Volcani Center, Bet Dagan 50205, Israel
Barash, I., Dept. of Plant Sciences, Tel-Aviv University, Tel Aviv 69978, Israel
Facilitators :
From page:
229
To page:
239
(
Total pages:
11
)
Abstract:
Thirty-five strains of Verticillium lecanii which originated from different hosts and geographical locations were tested as potential biocontrol agents against silverleaf whitefly, Bemisia argentifolii Bellows and Perring. All strains were tested for their pathogenicity to third-instar nymphs. Several isolates which exhibited high pathogenicity to nymphs were also tested against eggs, pupae and adults of B. argentifolii. Eggs were found to be immune to infection, but mortality of hatching nymphs reached 95-98%. The rate of hatching nymphs' infection depended on the age at which the eggs were inoculated and the strain's virulence. Mortality of nymphs recorded on day 4 after inoculation varied from 0.54±0.3% to 83±2.4%; that of the control ranged from 2.5% to 10.2%. The most virulent strains, with LT50 ranging between 3.2 and 3.8 days, were isolated from aphids in Israel and probably have a similar origin. The pathogenicity of V. lecanii strains to pupae 6 days after inoculation varied between 59±12.1% and 72.5±13.1%, as compared with natural mortality of 13.5±4%. The maximum adult mortality caused by V. lecanii strains was between 34.1±5.1% and 52.6±3.8%.
Note:
Related Files :
Bemisia argentifolii
BioControl
Entomopathogenic fungi
Verticillium lecanii
whitefly
Show More
Related Content
More details
DOI :
Article number:
0
Affiliations:
Database:
Scopus
Publication Type:
article
;
.
Language:
English
Editors' remarks:
ID:
18444
Last updated date:
02/03/2022 17:27
Creation date:
16/04/2018 23:21
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Scientific Publication
Pathogenicity of Verticillium lecanii to different developmental stages of the silverleaf whitefly, Bemisia argentifolii
28
Gindin, G., Dept. of Nematology, Volcani Center, Bet Dagan 50205, Israel
Geschtovt, N.U., Dept. of Microbiology, Kazakh Res. Inst. of Plant Protect., Almaty 483117, Kazakhstan
Raccah, B., Dept. of Virology, ARO, Volcani Center, Bet Dagan 50205, Israel
Barash, I., Dept. of Plant Sciences, Tel-Aviv University, Tel Aviv 69978, Israel
Pathogenicity of Verticillium lecanii to different developmental stages of the silverleaf whitefly, Bemisia argentifolii
Thirty-five strains of Verticillium lecanii which originated from different hosts and geographical locations were tested as potential biocontrol agents against silverleaf whitefly, Bemisia argentifolii Bellows and Perring. All strains were tested for their pathogenicity to third-instar nymphs. Several isolates which exhibited high pathogenicity to nymphs were also tested against eggs, pupae and adults of B. argentifolii. Eggs were found to be immune to infection, but mortality of hatching nymphs reached 95-98%. The rate of hatching nymphs' infection depended on the age at which the eggs were inoculated and the strain's virulence. Mortality of nymphs recorded on day 4 after inoculation varied from 0.54±0.3% to 83±2.4%; that of the control ranged from 2.5% to 10.2%. The most virulent strains, with LT50 ranging between 3.2 and 3.8 days, were isolated from aphids in Israel and probably have a similar origin. The pathogenicity of V. lecanii strains to pupae 6 days after inoculation varied between 59±12.1% and 72.5±13.1%, as compared with natural mortality of 13.5±4%. The maximum adult mortality caused by V. lecanii strains was between 34.1±5.1% and 52.6±3.8%.
Scientific Publication
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