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פותח על ידי קלירמאש פתרונות בע"מ -
Further studies of the encapsulation of Metaphycus swirskii by soft scales
Year:
1982
Authors :
בלומברג, דניאל
;
.
Volume :
31
Co-Authors:
Blumberg, D., Agricultural Research Organization, Volcani Center, Bet Dagan, Israel
Facilitators :
From page:
245
To page:
248
(
Total pages:
4
)
Abstract:
Encapsulation of eggs of the encyrtid parasite Metaphycus swirskii Annecke & Mynhardt (=M. aff. stanleyi Compere) (Hymenoptera: Encyrtidae) in the Mediterranean black scale Saissetia oleae (Olivier), was more frequent in the rubber stage of the host than in the young female. Encapsulation frequency in young females did not differ at 24° or at 28°, but increased considerably at 32°. In the rubber stage of S. oleae, the % scales wherein encapsulation completely prevented parasite development increased from 20.5 at 24° to 96.7 at 32°. Intentionally weakened Coccus hesperidum L., as opposed to healthy hosts, allowed the development of M. swirskii due to a reduction in the host's encapsulation capacity and, as a result, the mass rearing of the parasite on such a host was made possible. Egg encapsulation in the weakened C. hesperidum was more frequent in mature scales than in younger stages of the host. None of the eggs of M. swirskii, deposited in Coccophagus - parasitized C. hesperidum, became encapsulated. © 1982 Springer-Verlag.
Note:
Related Files :
hemispherical scale, Saissetia coffeae
Metaphycus swirskii
parasite egg encapsulation
עוד תגיות
תוכן קשור
More details
DOI :
10.1007/BF02996678
Article number:
Affiliations:
Database:
סקופוס
Publication Type:
מאמר
;
.
Language:
אנגלית
Editors' remarks:
ID:
26403
Last updated date:
02/03/2022 17:27
Creation date:
17/04/2018 00:22
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Scientific Publication
Further studies of the encapsulation of Metaphycus swirskii by soft scales
31
Blumberg, D., Agricultural Research Organization, Volcani Center, Bet Dagan, Israel
Further studies of the encapsulation of Metaphycus swirskii by soft scales
Encapsulation of eggs of the encyrtid parasite Metaphycus swirskii Annecke & Mynhardt (=M. aff. stanleyi Compere) (Hymenoptera: Encyrtidae) in the Mediterranean black scale Saissetia oleae (Olivier), was more frequent in the rubber stage of the host than in the young female. Encapsulation frequency in young females did not differ at 24° or at 28°, but increased considerably at 32°. In the rubber stage of S. oleae, the % scales wherein encapsulation completely prevented parasite development increased from 20.5 at 24° to 96.7 at 32°. Intentionally weakened Coccus hesperidum L., as opposed to healthy hosts, allowed the development of M. swirskii due to a reduction in the host's encapsulation capacity and, as a result, the mass rearing of the parasite on such a host was made possible. Egg encapsulation in the weakened C. hesperidum was more frequent in mature scales than in younger stages of the host. None of the eggs of M. swirskii, deposited in Coccophagus - parasitized C. hesperidum, became encapsulated. © 1982 Springer-Verlag.
Scientific Publication
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