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אסיף מאגר המחקר החקלאי
פותח על ידי קלירמאש פתרונות בע"מ -
Evaluation of entomopathogenic nematodes for the control of Mediterranean fruit fly (Diptera: Tephritidae)
Year:
2000
Source of publication :
Biocontrol Science and Technology
Authors :
גלזר, איתמר
;
.
Volume :
10
Co-Authors:
Gazit, Y., 'Israel Cohen' Inst. Biol. Contr., Citrus Marketing Board of Israel, Bet-Dagan 50250, Israel
Rössler, Y., 'Israel Cohen' Inst. Biol. Contr., Citrus Marketing Board of Israel, Bet-Dagan 50250, Israel
Glazer, I., Department of Nematology, Agricultural Research Organization, Volcani Center, Bet-Dagan 50250, Israel
Facilitators :
From page:
157
To page:
164
(
Total pages:
8
)
Abstract:
The virulence of various entomopathogenic nematode (EPN) strains was evaluated against the Mediterranean fruit fly, C. capitata. The selected nematodes were assessed for their infectivity for the final larval stage of the insect host and under varying environmental conditions. Among 12 EPN strains tested, Steinernema riobrave Texas (Sr TX) and Heterorhabditis sp. IS-5 (H IS-5), showed high activity and induced > 80% mortality. Six EPN strains showed limited activity (>30% mortality), and four strains had no effect (<20% mortality). Sr TX was more effective than H IS-5. Mature C. capitata larvae were most susceptible to nematode infection during the first 4 h after they began to emerge from their diet to pupate. Activity of the two nematode strains at a constant inoculation rate was dependent on insect larval density. The highest activity was recorded at 1.88 larvae cm-2 and decreased at higher larval densities. EPN activity was also directly related to nematode density. Maximal activity was shown at a density of 150 infective juveniles cm-2. A similar activity pattern was also recorded with Sr TX in four different soil types. The persistence of this EPN in the soil extended over 5 days but there was no activity after 14 days. Except for a lower activity under cool conditions (17°C), temperatures ranging between 22 and 41°C, or moisture levels in the treated soil ranging between 3 and 20%, had no significant effect on nematode activity. Our results suggest that application of Sr TX against C. capitata may have potential for controlling C. capitata.
Note:
Related Files :
biological control
Ceratitis capitata
Entomopathogenic nematodes
soil moisture
temperature
virulence
עוד תגיות
תוכן קשור
More details
DOI :
Article number:
0
Affiliations:
Database:
סקופוס
Publication Type:
מאמר
;
.
Language:
אנגלית
Editors' remarks:

Itamar's own PDF.

ID:
21324
Last updated date:
02/03/2022 17:27
Creation date:
16/04/2018 23:43
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Scientific Publication
Evaluation of entomopathogenic nematodes for the control of Mediterranean fruit fly (Diptera: Tephritidae)
10
Gazit, Y., 'Israel Cohen' Inst. Biol. Contr., Citrus Marketing Board of Israel, Bet-Dagan 50250, Israel
Rössler, Y., 'Israel Cohen' Inst. Biol. Contr., Citrus Marketing Board of Israel, Bet-Dagan 50250, Israel
Glazer, I., Department of Nematology, Agricultural Research Organization, Volcani Center, Bet-Dagan 50250, Israel
Evaluation of entomopathogenic nematodes for the control of Mediterranean fruit fly (Diptera: Tephritidae)
The virulence of various entomopathogenic nematode (EPN) strains was evaluated against the Mediterranean fruit fly, C. capitata. The selected nematodes were assessed for their infectivity for the final larval stage of the insect host and under varying environmental conditions. Among 12 EPN strains tested, Steinernema riobrave Texas (Sr TX) and Heterorhabditis sp. IS-5 (H IS-5), showed high activity and induced > 80% mortality. Six EPN strains showed limited activity (>30% mortality), and four strains had no effect (<20% mortality). Sr TX was more effective than H IS-5. Mature C. capitata larvae were most susceptible to nematode infection during the first 4 h after they began to emerge from their diet to pupate. Activity of the two nematode strains at a constant inoculation rate was dependent on insect larval density. The highest activity was recorded at 1.88 larvae cm-2 and decreased at higher larval densities. EPN activity was also directly related to nematode density. Maximal activity was shown at a density of 150 infective juveniles cm-2. A similar activity pattern was also recorded with Sr TX in four different soil types. The persistence of this EPN in the soil extended over 5 days but there was no activity after 14 days. Except for a lower activity under cool conditions (17°C), temperatures ranging between 22 and 41°C, or moisture levels in the treated soil ranging between 3 and 20%, had no significant effect on nematode activity. Our results suggest that application of Sr TX against C. capitata may have potential for controlling C. capitata.
Scientific Publication
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