Details
| Originalsprache | Englisch |
|---|---|
| Seiten (von - bis) | 137-143 |
| Seitenumfang | 7 |
| Fachzeitschrift | Agriculture, Ecosystems and Environment |
| Jahrgang | 107 |
| Ausgabenummer | 2-3 |
| Publikationsstatus | Veröffentlicht - 20 Mai 2005 |
Abstract
The spatial and temporal dispersal of the aphid parasitoid Aphidius colemani (Hymenoptera: Braconidae) was studied in the field. Dispersal was determined on the basis of mummified Myzus persicae (Hemiptera: Aphididae) aphids on kohlrabi trap plants. Trap plants were arranged equidistantly in circles at distances of 1, 2, 4, 8 and 16 m from a central release point. Plants were replaced on day 1 and 3 after the release of A. colemani. The pattern of mummified aphids showed that parasitoids moved at least 16 m within 24 h after release. Mean numbers of A. colemani mummies per trap plant were low (3.0, 1.8 and 1.1 on days 1, 3 and 5 after release). In most cases dispersal was random with regard to compass direction. Prevailing light to moderate wind speed did not influence dispersal of parasitoids. Released A. colemani remained at the experimental site for at least 3 days.
ASJC Scopus Sachgebiete
- Umweltwissenschaften (insg.)
- Ökologie
- Agrar- und Biowissenschaften (insg.)
- Nutztierwissenschaften und Zoologie
- Agrar- und Biowissenschaften (insg.)
- Agronomie und Nutzpflanzenwissenschaften
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in: Agriculture, Ecosystems and Environment, Jahrgang 107, Nr. 2-3, 20.05.2005, S. 137-143.
Publikation: Beitrag in Fachzeitschrift › Artikel › Forschung › Peer-Review
}
TY - JOUR
T1 - Measuring the field dispersal of Aphidius colemani (Hymenoptera
T2 - Braconidae)
AU - Langhof, Maren
AU - Meyhöfer, Rainer
AU - Poehling, Hans Michael
AU - Gathmann, Achim
N1 - Funding information: We are grateful to Thomas Klug for fieldwork assistance and to Bernhard Werner for providing the experimental site. This study was financially supported by DuPont.
PY - 2005/5/20
Y1 - 2005/5/20
N2 - The spatial and temporal dispersal of the aphid parasitoid Aphidius colemani (Hymenoptera: Braconidae) was studied in the field. Dispersal was determined on the basis of mummified Myzus persicae (Hemiptera: Aphididae) aphids on kohlrabi trap plants. Trap plants were arranged equidistantly in circles at distances of 1, 2, 4, 8 and 16 m from a central release point. Plants were replaced on day 1 and 3 after the release of A. colemani. The pattern of mummified aphids showed that parasitoids moved at least 16 m within 24 h after release. Mean numbers of A. colemani mummies per trap plant were low (3.0, 1.8 and 1.1 on days 1, 3 and 5 after release). In most cases dispersal was random with regard to compass direction. Prevailing light to moderate wind speed did not influence dispersal of parasitoids. Released A. colemani remained at the experimental site for at least 3 days.
AB - The spatial and temporal dispersal of the aphid parasitoid Aphidius colemani (Hymenoptera: Braconidae) was studied in the field. Dispersal was determined on the basis of mummified Myzus persicae (Hemiptera: Aphididae) aphids on kohlrabi trap plants. Trap plants were arranged equidistantly in circles at distances of 1, 2, 4, 8 and 16 m from a central release point. Plants were replaced on day 1 and 3 after the release of A. colemani. The pattern of mummified aphids showed that parasitoids moved at least 16 m within 24 h after release. Mean numbers of A. colemani mummies per trap plant were low (3.0, 1.8 and 1.1 on days 1, 3 and 5 after release). In most cases dispersal was random with regard to compass direction. Prevailing light to moderate wind speed did not influence dispersal of parasitoids. Released A. colemani remained at the experimental site for at least 3 days.
KW - Field study
KW - Movement
KW - Mummified aphids
KW - Release
KW - Trap plant
UR - http://www.scopus.com/inward/record.url?scp=16344386773&partnerID=8YFLogxK
U2 - 10.1016/j.agee.2004.12.001
DO - 10.1016/j.agee.2004.12.001
M3 - Article
AN - SCOPUS:16344386773
VL - 107
SP - 137
EP - 143
JO - Agriculture, Ecosystems and Environment
JF - Agriculture, Ecosystems and Environment
SN - 0167-8809
IS - 2-3
ER -