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Intraguild interactions among specialised pollen feeders and generalist phytoseiids and their effect on citrus rust mite suppression
Year:
2016
Source of publication :
Pest Management Science
Authors :
Gal, Shira
;
.
Maoz, Yonatan
;
.
Palevsky, Eric
;
.
Volume :
72
Co-Authors:

Moshe Coll - Department of Entomology, The Hebrew University of Jerusalem, Rehovot, Israel

Yael Argov and Sylvie Domeratzky - Israel Cohen Institute for Biological Control, Plant Production and Marketing Board, Citrus Division, Bet Dagan, Israel

Facilitators :
From page:
940
To page:
949
(
Total pages:
10
)
Abstract:

BACKGROUND: Antagonistic interactions among predators with shared prey are thought to hamper their ability to suppress herbivores. Our aim was to quantify intraguild interactions in omnivorous predatory mite assemblages in the presence of pollen, and assess their effect on pest populations. We focused on the following naturally occurring phytoseiid species in Israeli citrus orchards and their ability to suppress a key pest, the citrus rust mite (CRM) Phyllocoptruta oleivora (Eriophyidae): the generalists Amblyseius swirskii and Typhlodromus athiasae and the specialised pollen feeders Iphiseius degenerans, Euseius scutalis, E. stipulatus and E. victoriensis. Evaluations were performed on two spatial scales, tree seedlings and leaf discs. RESULTS: On seedlings, experiments were conducted to quantify the interactions between predators in the presence of pollen and its effects on CRM suppression. On leaf discs, intraguild interactions were studied between pairs of phytoseiid species in the presence of pollen without CRM. On seedlings, the specialised pollen predators were more effective at suppressing CRM populations than the generalist predators. CONCLUSION: In most cases, the more aggressive intraguild predator was the specialised pollen feeder. Similarly, leaf-disc experiments suggest that in these interactions the specialised pollen feeders tend to be the intraguild predators more often than the intraguild prey. © 2015 Society of Chemical Industry

Note:
Related Files :
Amblyseius
Euseius
insects
Intraguild predation
Iphiseius degenerans
pests
Phyllocoptruta oleivora
Typhlodromus
Show More
Related Content
More details
DOI :
doi:10.1002/ps.4073
Article number:
0
Affiliations:
Database:
Google Scholar
Publication Type:
article
;
.
Language:
English
Editors' remarks:
ID:
45650
Last updated date:
02/03/2022 17:27
Creation date:
29/12/2019 07:50
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Scientific Publication
Intraguild interactions among specialised pollen feeders and generalist phytoseiids and their effect on citrus rust mite suppression
72

Moshe Coll - Department of Entomology, The Hebrew University of Jerusalem, Rehovot, Israel

Yael Argov and Sylvie Domeratzky - Israel Cohen Institute for Biological Control, Plant Production and Marketing Board, Citrus Division, Bet Dagan, Israel

Intraguild interactions among specialised pollen feeders and generalist phytoseiids and their effect on citrus rust mite suppression .

BACKGROUND: Antagonistic interactions among predators with shared prey are thought to hamper their ability to suppress herbivores. Our aim was to quantify intraguild interactions in omnivorous predatory mite assemblages in the presence of pollen, and assess their effect on pest populations. We focused on the following naturally occurring phytoseiid species in Israeli citrus orchards and their ability to suppress a key pest, the citrus rust mite (CRM) Phyllocoptruta oleivora (Eriophyidae): the generalists Amblyseius swirskii and Typhlodromus athiasae and the specialised pollen feeders Iphiseius degenerans, Euseius scutalis, E. stipulatus and E. victoriensis. Evaluations were performed on two spatial scales, tree seedlings and leaf discs. RESULTS: On seedlings, experiments were conducted to quantify the interactions between predators in the presence of pollen and its effects on CRM suppression. On leaf discs, intraguild interactions were studied between pairs of phytoseiid species in the presence of pollen without CRM. On seedlings, the specialised pollen predators were more effective at suppressing CRM populations than the generalist predators. CONCLUSION: In most cases, the more aggressive intraguild predator was the specialised pollen feeder. Similarly, leaf-disc experiments suggest that in these interactions the specialised pollen feeders tend to be the intraguild predators more often than the intraguild prey. © 2015 Society of Chemical Industry

Scientific Publication