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| Web URL(s): | http://www.nrcresearchpress.com/doi/pdfplus/10.4141/P03-144
Last checked: 02/03/2016
Requires: PDF Reader |
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| Publication Type:
| Refereed |
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| Author(s): | Soroka, J. J.;
Gossen, B. D. |
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| Author Affiliation: | Agriculture and Agri-Food Canada, Saskatoon Research Centre, Sakatoon, Saskatchewan, Canada |
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| Title: | Phytophagous arthropods and silvertop levels associated with post-harvest residue treatments in three turfgrass species grown for seed |
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| Section: | Pest management
Other records with the "Pest management" Section
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| Source: | Canadian Journal of Plant Science. Vol. 85, No. 1, January 2005, p. 213-224. |
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| Publishing Information: | Ottawa: Agricultural Institute of Canada |
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| # of Pages: | 12 |
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| Keywords: | TIC Keywords: Agrostis stolonifera; Arthropoda; Cultivar evaluation; Disease surveys; Festuca rubra subsp. rubra; Poa pratensis; Seed production; Reproductive sterility; Symptoms
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| Abstract/Contents: | "Silvertop, which is characterized by whitish, completely sterile seed heads produced on green tillers, is a common symptom in many perennial grasses. A 3-yr study of creeping bentgrass (Agrostis palustris), Kentucky bluegrass (Poa pratensis) and creeping red fescue (Festuca rubra subsp. rubra) grown for seed production was conducted at Saskatoon, Saskatchewan, to investigate the cause(s) of silvertop, the impact of residue management strategies on silvertop incidence, and the impact of silvertop on seed yield. Three residue management practices were applied in the fall of the first harvest year and again the next fall, as follows: (i) burned after harvest; (ii) clipped to 1-2 cm in height and the residue removed; or (iii) mowed to 20 cm and the residue retained. Arthropods in each plot were collected weekly from May until July by sweep sampling, counted, and identified to family level or lower, and the incidence of seed heads with and without silvertop were assessed. The majority of arthropods were thrips, leafhoppers, plant bugs, mites, or grass-dwelling flies. Grass species and residue treatment strongly affected the number of reproductive tillers and levels of silvertop. Levels of silvertop were lowest in creeping bentgrass in all 3 yr of the study, while they were similar for Kentucky bluegrass and creeping red fescue. Mown plots had fewer reproductive tillers, fewer heathy seed heads, and higher levels of silvertop than burned or clipped plots. However, arthropod species composition was generally similar across grass species and residue treatments. This indicates that a specific arthropod taxon may not be a critical factor in silvertop expression. The relationship between the number and composition of arthropods found and incidence of silvertop is discussed." |
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| Language: | English |
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| References: | 57 |
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| Note: | Tables
Graphs
Abstract appears in both English and French |
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| ASA/CSSA/SSSA Citation (Crop Science-Like - may be incomplete):
Soroka, J. J., and B. D. Gossen. 2005. Phytophagous arthropods and silvertop levels associated with post-harvest residue treatments in three turfgrass species grown for seed. Can. J. Plant Sci. 85(1):p. 213-224. |
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| Web URL(s):
http://www.nrcresearchpress.com/doi/pdfplus/10.4141/P03-144
Last checked: 02/03/2016
Requires: PDF Reader |
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MSU catalog number: SB 1 .C3 |
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