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קהילה:
אסיף מאגר המחקר החקלאי
פותח על ידי קלירמאש פתרונות בע"מ -
Evaluation of the efficacy of the entomopathogenic nematodes Heterorhabditis sp. against sap beetles (Coleoptera: Nitidulidae)
Year:
2007
Source of publication :
BioControl
Authors :
אליהו, מרים
;
.
בלומברג, דניאל
;
.
גלזר, איתמר
;
.
סלמה, ליאורה
;
.
Volume :
52
Co-Authors:
Glazer, I., Division of Nematology, ARO, Volcani Center, Bet Dagan, 50250, Israel, Department of Entomology, ARO, Volcani Center, Bet Dagan, 50250, Israel
Eliyau, M., Department of Entomology, ARO, Volcani Center, Bet Dagan, 50250, Israel
Salame, L., Division of Nematology, ARO, Volcani Center, Bet Dagan, 50250, Israel, Department of Entomology, ARO, Volcani Center, Bet Dagan, 50250, Israel
Nakash, Y., Eden Experimental Station, Bet She'an, 10900, Israel
Blumberg, D., Department of Entomology, ARO, Volcani Center, Bet Dagan, 50250, Israel
Facilitators :
From page:
259
To page:
270
(
Total pages:
12
)
Abstract:
Nitidulid beetles (Coleoptera) are considered serious pests of date palms throughout the world. They attack the ripe fruit, causing it to rot, and damage is reflected in both reduced yield and lower fruit quality. Previous studies demonstrated the susceptibility of larvae of this pest to entomopathogenic nematodes from the genus Heterorhabditidis. In the present study nematode efficacy was evaluated in greenhouse and field. In containers filled with soil, moderate reduction in insect emergence was achieved when the nematodes were applied at concentrations of 25 and 50 IJs/cm2. However, the highest concentration (100 IJs/cm2) treatment resulted in a drastic reduction (by 70-90%) in emergence of the beetles. The lowest emergence was achieved by the IS-19 and IS-21 strains (>10%). Efficacy of the IS-19 strain was retained up to 7 days after application at a rate of 100 IJs/cm2. When the insect larvae were introduced to the soil 2 weeks after nematode application, the percentage emergence of insects increased by 2-2.5 fold as compared to previous introductions but was still lower than in the control. Insect density per container did not have an effect on efficacy of the nematodes when the strains IS-19 and IS-12 were used. Two field trials were conducted in different sites in Israel. In the first trail, conducted in date palm orchard, four strains of Heterorhabditis sp. were tested. No significant difference in insect emergence was recorded among the various treatments or the control. Whereas in the second trial conducted in a fig orchard, substantial reduction (by 50-70%) in insect emergence was recorded following nematode treatment. Further studies, under natural conditions, are needed to optimize application efficiency and evaluate the commercial utilization of these biological control agents. © 2006 International Organization for Biological Control (IOBC).
Note:
Related Files :
biological control
Entomopathogenic nematodes
Israel
Nematoda
pest control
Phoenix dactylifera
Sap beetles
עוד תגיות
תוכן קשור
More details
DOI :
10.1007/s10526-006-9027-3
Article number:
0
Affiliations:
Database:
סקופוס
Publication Type:
מאמר
;
.
Language:
אנגלית
Editors' remarks:

Itamar's own PDF.

ID:
23270
Last updated date:
02/03/2022 17:27
Creation date:
16/04/2018 23:58
Scientific Publication
Evaluation of the efficacy of the entomopathogenic nematodes Heterorhabditis sp. against sap beetles (Coleoptera: Nitidulidae)
52
Glazer, I., Division of Nematology, ARO, Volcani Center, Bet Dagan, 50250, Israel, Department of Entomology, ARO, Volcani Center, Bet Dagan, 50250, Israel
Eliyau, M., Department of Entomology, ARO, Volcani Center, Bet Dagan, 50250, Israel
Salame, L., Division of Nematology, ARO, Volcani Center, Bet Dagan, 50250, Israel, Department of Entomology, ARO, Volcani Center, Bet Dagan, 50250, Israel
Nakash, Y., Eden Experimental Station, Bet She'an, 10900, Israel
Blumberg, D., Department of Entomology, ARO, Volcani Center, Bet Dagan, 50250, Israel
Evaluation of the efficacy of the entomopathogenic nematodes Heterorhabditis sp. against sap beetles (Coleoptera: Nitidulidae)
Nitidulid beetles (Coleoptera) are considered serious pests of date palms throughout the world. They attack the ripe fruit, causing it to rot, and damage is reflected in both reduced yield and lower fruit quality. Previous studies demonstrated the susceptibility of larvae of this pest to entomopathogenic nematodes from the genus Heterorhabditidis. In the present study nematode efficacy was evaluated in greenhouse and field. In containers filled with soil, moderate reduction in insect emergence was achieved when the nematodes were applied at concentrations of 25 and 50 IJs/cm2. However, the highest concentration (100 IJs/cm2) treatment resulted in a drastic reduction (by 70-90%) in emergence of the beetles. The lowest emergence was achieved by the IS-19 and IS-21 strains (>10%). Efficacy of the IS-19 strain was retained up to 7 days after application at a rate of 100 IJs/cm2. When the insect larvae were introduced to the soil 2 weeks after nematode application, the percentage emergence of insects increased by 2-2.5 fold as compared to previous introductions but was still lower than in the control. Insect density per container did not have an effect on efficacy of the nematodes when the strains IS-19 and IS-12 were used. Two field trials were conducted in different sites in Israel. In the first trail, conducted in date palm orchard, four strains of Heterorhabditis sp. were tested. No significant difference in insect emergence was recorded among the various treatments or the control. Whereas in the second trial conducted in a fig orchard, substantial reduction (by 50-70%) in insect emergence was recorded following nematode treatment. Further studies, under natural conditions, are needed to optimize application efficiency and evaluate the commercial utilization of these biological control agents. © 2006 International Organization for Biological Control (IOBC).
Scientific Publication
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