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Author : Claudia L. Powers Evans
Publisher :
ISBN 13 :
Total Pages : 84 pages
Book Rating : 4.:/5 (829 download)
Download or read book Integrated Control of Tansy Ragwort (Senecio Jacobaea L.) written by Claudia L. Powers Evans and published by . This book was released on 1980 with total page 84 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Author : Lorraine J. Holden
Publisher :
ISBN 13 :
Total Pages : 224 pages
Book Rating : 4.:/5 (222 download)
Download or read book Biological Control of Tansy Ragwort (Senecio Jacobaea L.) on a Disturbed Coastal Prairie in Del Norte County, California written by Lorraine J. Holden and published by . This book was released on 1989 with total page 224 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Author : Jim Jacobs
Publisher :
ISBN 13 :
Total Pages : 13 pages
Book Rating : 4.:/5 (968 download)
Download or read book Ecology and Management of Tansy Ragwort (Senecio Jacobaea L.) written by Jim Jacobs and published by . This book was released on 2009 with total page 13 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Author : L. C. Burrill
Publisher :
ISBN 13 :
Total Pages : 8 pages
Book Rating : 4.:/5 (316 download)
Download or read book Tansy Ragwort, Senecio Jacobaea L. written by L. C. Burrill and published by . This book was released on 1994 with total page 8 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Author :
Publisher :
ISBN 13 :
Total Pages : 2 pages
Book Rating : 4.:/5 (822 download)
Download or read book Tansy Ragwort (Senecio Jacobaea). written by and published by . This book was released on 2012 with total page 2 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Author : Ruth E. Burroughs Lefevre
Publisher :
ISBN 13 :
Total Pages : 182 pages
Book Rating : 4.:/5 (229 download)
Download or read book Tansy Ragwort (Senecio Jacobaea L.) Habitat Variations in the State of Oregon written by Ruth E. Burroughs Lefevre and published by . This book was released on 1989 with total page 182 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Author :
Publisher :
ISBN 13 :
Total Pages : 2 pages
Book Rating : 4.:/5 (89 download)
Download or read book Tansy Ragwort, Senecio Jacobaea written by and published by . This book was released on 2011* with total page 2 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Author : Victoria. Vermin and Noxious Weeds Destruction Board
Publisher :
ISBN 13 : 9780724112838
Total Pages : 2 pages
Book Rating : 4.1/5 (128 download)
Download or read book Ragwort, Senecio Jacobaea L. written by Victoria. Vermin and Noxious Weeds Destruction Board and published by . This book was released on 1976 with total page 2 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Author : Ann Louise Baker
Publisher :
ISBN 13 :
Total Pages : 132 pages
Book Rating : 4.:/5 (297 download)
Download or read book Disk and Ray Achene Development and Germination Characteristics of Tansy Ragwort written by Ann Louise Baker and published by . This book was released on 1982 with total page 132 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Author : Rosalind R. James
Publisher :
ISBN 13 :
Total Pages : 134 pages
Book Rating : 4.:/5 (244 download)
Download or read book The Relative Impact of Single Vs. Multiple Agents on the Biological Control of Tansy Ragwort (Senecio Jacobaea) written by Rosalind R. James and published by . This book was released on 1989 with total page 134 pages. Available in PDF, EPUB and Kindle. Book excerpt: Field experiments were done to test the relative effectiveness of single and multiple biological control agents in reducing weed populations using two insects, the cinnabar moth, Tvria iacobaeae (L.), and the ragwort flea beetle, Lonqitarsus iacobaeae (Waterhouse). These two insects were released for biological control of the biennial weed tansy ragwort. Together, they had a greater impact on ragwort, at the experimental site, than either alone. Artificial defoliation simulated the cinnabar moth feeding behavior of defoliating and defoliating bolting plants in the early summer. Flea beetle larvae and adults were sampled to determine their seasonality and the plant parts and stages they most frequently fed on. Larvae fed internally in the leaf petioles and roots from October to July. Adults fed on leaves year round with their greatest activity occurring in late summer and fall. Flea beetles alone reduced vegetative plant densities by about 95%, but only with simulated cinnabar feeding did they affect flowering plants, reducing regrowth of leaves and flowers. Cinnabar moths alone had an effect only on flower and seed production. This combination of herbivores with little nicheoverlap, spread out attack over time, plant stages, and parts, and yielded stronger host population depression than either insect yielded alone.
Author : Alick Lindsay POOLE (and ADAMS (Jacqueline Nancy Mary))
Publisher :
ISBN 13 :
Total Pages : pages
Book Rating : 4.:/5 (54 download)
Download or read book Botanical Aspects of Ragwort-Senecio Jacobaea L.-Control written by Alick Lindsay POOLE (and ADAMS (Jacqueline Nancy Mary)) and published by . This book was released on 1940 with total page pages. Available in PDF, EPUB and Kindle. Book excerpt:
Author : Susan C. Turner
Publisher :
ISBN 13 : 9780772680631
Total Pages : 19 pages
Book Rating : 4.6/5 (86 download)
Download or read book Longitarsus Jacobaeae Swiss Biotype Effect on Tansy Ragwort (Senecio Jacobaea) in Naramata, British Columbia written by Susan C. Turner and published by . This book was released on 2022 with total page 19 pages. Available in PDF, EPUB and Kindle. Book excerpt: The flea beetle, Longitarsus jacobaeae (Swiss biotype), exhibited a classical biological control pattern on its host plant tansy ragwort (Senecio jacobaea L.) in Naramata, B.C. by rapidly increasing in number after its release and causing the decline of the plant. L. jacobaeae's presence was identified by approximately 1.6-mm2 feeding holes in the ragwort's leaves. L. jacobaeae fed preferentially on rosettes (p=0.0333) as opposed to bolted plants (p=0.4621). It caused a visibly significant decrease in the number of rosettes and bolted plants combined at the trial sites in 3-4 years (p=0.0221). From the point of release, L. jacobaeae dispersed 100 m over the study site in 4 years.
Author : Lisa Joanne Michels
Publisher :
ISBN 13 :
Total Pages : 49 pages
Book Rating : 4.:/5 (268 download)
Download or read book Patterns of Regrowth and Chemical Defense in Tansy Ragwort (Senecio Jacobaea) written by Lisa Joanne Michels and published by . This book was released on 1996 with total page 49 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Author : Cathy Calloway
Publisher :
ISBN 13 :
Total Pages : 12 pages
Book Rating : 4.:/5 (983 download)
Download or read book Tansy Ragwort Control written by Cathy Calloway and published by . This book was released on 1998 with total page 12 pages. Available in PDF, EPUB and Kindle. Book excerpt: Following a wildfire in 1994, the Tally Lake Ranger District in Northwestern Montana experienced a population explosion of Senecio jacobaea or tansy ragwort. This was only the second, and by far the largest infestation of this invasive weed in the state of Montana. Information derived from the Invaders Database was used to project the potential regional spread of tansy ragwort without management action. Historical records dating back to 1901 were used to project the likely future expansion of tansy ragwort within the five northwestern states. At a more local scale, with information from the Invaders Database and other sources, Dr. Rice was able to provide the Project Interdisciplinary Team with a tansy ragwort risk rating for disturbed and forested site conditions...The habitat type risk ratings, based on the Invaders Database, are being used to help set priorities for 1998 inventory efforts.
Author : A. L. Poole
Publisher :
ISBN 13 :
Total Pages : 61 pages
Book Rating : 4.:/5 (227 download)
Download or read book Botanical Aspects of Ragwort (Senecio Jacobaea L.) written by A. L. Poole and published by . This book was released on 1940 with total page 61 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Author : Andrew Wilcox
Publisher :
ISBN 13 :
Total Pages : pages
Book Rating : 4.:/5 (99 download)
Download or read book Induced changes in Tansy Ragwort Senecio jacobaea (L.), leaf chemistry, and their effects on the Cinnabar moth Tyria jacobaeae L., (Arctiidae: Lepidoptera) written by Andrew Wilcox and published by . This book was released on 1987 with total page pages. Available in PDF, EPUB and Kindle. Book excerpt:
Author : J. R. Nechols
Publisher : UCANR Publications
ISBN 13 : 9781879906211
Total Pages : 372 pages
Book Rating : 4.9/5 (62 download)
Download or read book Biological Control in the Western United States written by J. R. Nechols and published by UCANR Publications. This book was released on 1995-01-01 with total page 372 pages. Available in PDF, EPUB and Kindle. Book excerpt:
