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פותח על ידי קלירמאש פתרונות בע"מ -
Colonization trials with Cryptochetum iceryae and Rodolia iceryae for improved biological control of Icerya purchasi in Israel
Year:
1991
Source of publication :
biological control (source)
Authors :
בלומברג, דניאל
;
.
מנדל, צבי
;
.
Volume :
1
Co-Authors:
Mendel, Z., Department of Entomology, Agricultural Research Organization, The Volcani Center, Bet Dagan, Israel
Blumberg, D., Department of Entomology, Agricultural Research Organization, The Volcani Center, Bet Dagan, Israel
Facilitators :
From page:
68
To page:
74
(
Total pages:
7
)
Abstract:
Colonization of additional natural enemies of Icerya purchasi Maskell (Homoptera: Margarodidae) in Israel was considered because of the frequent outbreaks of the scale during the 1980s and the chronic severe injuries to certain ornamental plants whose toxic effects through the scale reduce the effectiveness of Rodolia cardinalis Mulsant (Coleoptera: Coccinellidae). Colonization trials were conducted with the parasitic fly Cryptochetum iceryae Williston (Diptera: Cryptochetidae) collected in southern California and with Rodolia iceryae Jenson sent from South Africa. Rearing experiments of both natural enemies were conducted using I. purchasi and I. aegyptiaca (Douglas) infesting different plant species. C. iceryae developed on I. purchasi growing on 17 host plant species. I. aegyptiaca was not affected by the fly. R. iceryae could not complete its development on either I. purchasi or I. aegyptiaca. C. iceryae was released at nine sites planted with Erythrina corallodendrum, Spartium junceum, or Retama raetam infested with I. purchasi. In citrus groves, after 2 years and following several releases, it is still uncertain whether C. iceryae has become established. C. iceryae was acclimatized at all sites planted with E. corallodendrum, S. junceum, and R. raetam and suppression of the scale was achieved in 2 years, probably because of the lack of significant competition with Rodolia cardinalis. I. purchasi populations were very sparse in the sampled citrus groves. Only in one site did we observe a rapid switch from the latent epidemic phase. This outbreak resulted in serious damage to the trees and was followed by a rapid breakdown of the scale population due to a sharp increase in the R. cardinalis population. © 1991.
Note:
Related Files :
biological control
Citrus
Cryptochetum iceryae
Erythrina corallodendrum
Icerya purchasi
Rodolia cardinalis
Rodolia iceryae
Spartium junceum
עוד תגיות
תוכן קשור
More details
DOI :
10.1016/1049-9644(91)90104-8
Article number:
Affiliations:
Database:
סקופוס
Publication Type:
מאמר
;
.
Language:
אנגלית
Editors' remarks:
ID:
18638
Last updated date:
02/03/2022 17:27
Creation date:
16/04/2018 23:23
Scientific Publication
Colonization trials with Cryptochetum iceryae and Rodolia iceryae for improved biological control of Icerya purchasi in Israel
1
Mendel, Z., Department of Entomology, Agricultural Research Organization, The Volcani Center, Bet Dagan, Israel
Blumberg, D., Department of Entomology, Agricultural Research Organization, The Volcani Center, Bet Dagan, Israel
Colonization trials with Cryptochetum iceryae and Rodolia iceryae for improved biological control of Icerya purchasi in Israel
Colonization of additional natural enemies of Icerya purchasi Maskell (Homoptera: Margarodidae) in Israel was considered because of the frequent outbreaks of the scale during the 1980s and the chronic severe injuries to certain ornamental plants whose toxic effects through the scale reduce the effectiveness of Rodolia cardinalis Mulsant (Coleoptera: Coccinellidae). Colonization trials were conducted with the parasitic fly Cryptochetum iceryae Williston (Diptera: Cryptochetidae) collected in southern California and with Rodolia iceryae Jenson sent from South Africa. Rearing experiments of both natural enemies were conducted using I. purchasi and I. aegyptiaca (Douglas) infesting different plant species. C. iceryae developed on I. purchasi growing on 17 host plant species. I. aegyptiaca was not affected by the fly. R. iceryae could not complete its development on either I. purchasi or I. aegyptiaca. C. iceryae was released at nine sites planted with Erythrina corallodendrum, Spartium junceum, or Retama raetam infested with I. purchasi. In citrus groves, after 2 years and following several releases, it is still uncertain whether C. iceryae has become established. C. iceryae was acclimatized at all sites planted with E. corallodendrum, S. junceum, and R. raetam and suppression of the scale was achieved in 2 years, probably because of the lack of significant competition with Rodolia cardinalis. I. purchasi populations were very sparse in the sampled citrus groves. Only in one site did we observe a rapid switch from the latent epidemic phase. This outbreak resulted in serious damage to the trees and was followed by a rapid breakdown of the scale population due to a sharp increase in the R. cardinalis population. © 1991.
Scientific Publication
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