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אסיף מאגר המחקר החקלאי
פותח על ידי קלירמאש פתרונות בע"מ -
Biocontrol of persea mite, Oligonychus perseae, with an exotic spider mite predator and an indigenous pollen feeder
Year:
2011
Source of publication :
biological control (source)
Authors :
גל, שירה
;
.
מעוז, יונתן
;
.
פלבסקי, אריק
;
.
Volume :
59
Co-Authors:

Yael Argov - Israel Cohen Institute for Biological Control, Plant Production and Marketing Board, Citrus Division, POB 80, Bet Dagan 50250, Israel

Moshe Coll - Department of Entomology, The Hebrew University of Jerusalem, POB 12, Rehovot 76100, Israel

Facilitators :
From page:
147
To page:
157
(
Total pages:
11
)
Abstract:

To improve the biological control of persea mite (Oligonychus perseae) in Israeli avocado orchards we evaluated two approaches: (1) Augmentative inundative releases in commercial orchards of Neoseiulus californicus, an exotic spider mite predator, and (2) Conservation of Euseius scutalis, the prevalent indigenous phytoseiid predator found in avocado orchards, by pollen provisioning. The latter was done at three spatial scales; leaf discs, seedlings and trees. Neoseiulus californicus releases led to a significant reduction in persea mite population densities. Nonetheless, most of the recovered predators consisted of E. scutalis. The leaf disc experiment showed that E. scutalis can significantly reduce persea mite populations even though it cannot penetrate or tear the mite nests. The seedling experiments demonstrated that E. scutalis can suppress persea mite when pollen is available and provisioning maize pollen substantially increased E. scutalis populations. Field trials revealed that conservation of E. scutalis using Rhodes grass (Chloris gayana) as a windborne pollen provisioning cover crop (WPPCC) was highly effective, compared to repeated artificial pollen applications. Densities of phytoseiid populations were significantly higher on trees adjacent to the Rhodes grass patches than on distant trees, whereas persea mite populations on trees adjacent to these patches were consistently lower. In this study, we show that the use of Rhodes grass as a WPPCC for conservation of E. scutalis is both effective and sustainable. While our results indicate that E. scutalis has potential for mite control, future studies are needed to demonstrate the efficacy of this approach in commercial orchards.

Note:
Related Files :
Alternative food
Avocado
cover crop
Euseius scutalis
insects
Neoseiulus californicus
Oligonychus perseae
Persea americana
עוד תגיות
תוכן קשור
More details
DOI :
https://doi.org/10.1016/j.biocontrol.2011.07.014
Article number:
0
Affiliations:
Database:
גוגל סקולר
Publication Type:
מאמר
;
.
Language:
אנגלית
Editors' remarks:
ID:
45639
Last updated date:
02/03/2022 17:27
Creation date:
26/12/2019 08:50
You may also be interested in
Scientific Publication
Biocontrol of persea mite, Oligonychus perseae, with an exotic spider mite predator and an indigenous pollen feeder
59

Yael Argov - Israel Cohen Institute for Biological Control, Plant Production and Marketing Board, Citrus Division, POB 80, Bet Dagan 50250, Israel

Moshe Coll - Department of Entomology, The Hebrew University of Jerusalem, POB 12, Rehovot 76100, Israel

Biocontrol of persea mite, Oligonychus perseae, with an exotic spider mite predator and an indigenous pollen feeder

To improve the biological control of persea mite (Oligonychus perseae) in Israeli avocado orchards we evaluated two approaches: (1) Augmentative inundative releases in commercial orchards of Neoseiulus californicus, an exotic spider mite predator, and (2) Conservation of Euseius scutalis, the prevalent indigenous phytoseiid predator found in avocado orchards, by pollen provisioning. The latter was done at three spatial scales; leaf discs, seedlings and trees. Neoseiulus californicus releases led to a significant reduction in persea mite population densities. Nonetheless, most of the recovered predators consisted of E. scutalis. The leaf disc experiment showed that E. scutalis can significantly reduce persea mite populations even though it cannot penetrate or tear the mite nests. The seedling experiments demonstrated that E. scutalis can suppress persea mite when pollen is available and provisioning maize pollen substantially increased E. scutalis populations. Field trials revealed that conservation of E. scutalis using Rhodes grass (Chloris gayana) as a windborne pollen provisioning cover crop (WPPCC) was highly effective, compared to repeated artificial pollen applications. Densities of phytoseiid populations were significantly higher on trees adjacent to the Rhodes grass patches than on distant trees, whereas persea mite populations on trees adjacent to these patches were consistently lower. In this study, we show that the use of Rhodes grass as a WPPCC for conservation of E. scutalis is both effective and sustainable. While our results indicate that E. scutalis has potential for mite control, future studies are needed to demonstrate the efficacy of this approach in commercial orchards.

Scientific Publication
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