Sheep as vectors for branched broomrape (Orobanche ramosa subsp. mutelii [F.W. Schultz] Cout.) seed dispersal
Date
2015
Authors
Ginman, E.
Prider, J.
Matthews, J.
Virtue, J.
Watling, J.
Editors
Advisors
Journal Title
Journal ISSN
Volume Title
Type:
Journal article
Citation
Weed Biology and Management, 2015; 15(2):61-69
Statement of Responsibility
Emma Ginman, Jane Prider, John Matthews, John Virtue and Jennifer Watling
Conference Name
Abstract
Sheep can be vectors for the long-distance dispersal of weeds when seed becomes attached and retained in wool or survives the gastrointestinal tract. This study aimed to determine an appropriate quarantine period for sheep that minimized the risk of the long-distance dispersal of the seeds of branched broomrape (Orobanche ramosa L. subsp. mutelii [F.W. Shultz] Cout.), a parasitic weed. Experiments with penned sheep found that the seeds that were placed on the soil surface adhered to the wool on the thigh and belly of the sheep, with most of the seeds attaching to the feet. Most of the seeds that were applied to the belly and thigh wool detached within 2 days, although a small proportion was present after 7 days. The seeds that were introduced to the digestive tract via drenching had a peak voidance 2 days later and no seed was detected on Day 8. It is suggested that a 7 day quarantine period for sheep would be sufficient in order to reduce the risk of the internal transport of seed to acceptable levels, but a small risk of the external transport of seed on the fleece remains.
School/Discipline
Dissertation Note
Provenance
Description
Article first published online: 11 DEC 2014
Access Status
Rights
© 2014 Weed Science Society of Japan