| |
DOI: | 10.2135/cropsci2010.03.0163 |
Web URL(s): | https://acsess.onlinelibrary.wiley.com/doi/10.2135/cropsci2010.03.0163 Last checked: 03/24/2024 Access conditions: Item is within a limited-access website https://acsess.onlinelibrary.wiley.com/doi/epdf/10.2135/cropsci2010.03.0163 Last checked: 03/24/2024 Requires: PDF Reader Access conditions: Item is within a limited-access website |
Publication Type:
| Refereed |
Author(s): | Keathley, Craig P.;
Potter, Daniel A. |
Author Affiliation: | Dep. of Entomology, University of Kentucky, Lexington, KY |
Title: | Does modification of tall fescue leaf texture and forage nutritive value for improved livestock performance increase suitability for a grass-feeding caterpillar? |
Section: | Research Other records with the "Research" Section
|
Source: | Crop Science. Vol. 51, No. 1, January 2011, p. 370-380. |
Publishing Information: | Madison, WI: Crop Science Society of America |
# of Pages: | 11 |
Keywords: | TIC Keywords: Cultivar improvement; Feeding preferences; Festuca arundinacea; Insect surveys; Larva; Leaf texture; Noctuidae; Nutritional value
|
Abstract/Contents: | "Grass breeders are developing new forage-type tall fescue [Schedonorus arundinaceus (Schreb.) Dumort = Lolium arundinaceum (Schreb.) Darbysh., formerly known as Festuca arundinacea Schreb.] cultivars with smoother texture, improved nutritive value, and reduced fiber for improved livestock performance. We tested if such grasses are also more susceptible to a grass-feeding caterpillar. True armyworms, Pseudaletia unipuncta (Haworth), were reared from first instar to adult on grass clippings from thirteen fescue cultivars or accessions differing in texture (smooth vs. standard), ecotype (northern European vs. Mediterranean), use (pasture vs. turf-type), or provenance to clarify how modifying the texture (edge spines, trichomes, or cellulose margin), thickness, tissue strength, and nutritive value (dry matter, fiber, ash, or N) of pasture grasses will affect their resistance. We also studied feeding site initiation and development of first instars on intact leaf blades when prevented from exploiting a cut leaf edge. Larvae performed equally well across all groups when reared with grass clippings, despite variation in leaf texture and nutritive value. On intact blades, however, leaf thickness and tissue strength were correlated with reduced feeding site initiation and larval development. Gregarious and window feeding may allow more efficient exploitation of common feeding sites on tougher leaves. True armyworm is adapted to feed on a range of structurally-diverse grasses, so increased use of forage-type tall fescue cultivars with smoother texture or reduced fiber is unlikely to worsen its damage to pastures." |
Language: | English |
References: | 44 |
Note: | Pictures, b/w Tables |
| ASA/CSSA/SSSA Citation (Crop Science-Like - may be incomplete): Keathley, C. P., and D. A. Potter. 2011. Does modification of tall fescue leaf texture and forage nutritive value for improved livestock performance increase suitability for a grass-feeding caterpillar?. Crop Sci. 51(1):p. 370-380. |
| Fastlink to access this record outside TGIF: https://tic.msu.edu/tgif/flink?recno=174182 |
| If there are problems with this record, send us feedback about record 174182. |
| Choices for finding the above item: |
| DOI: 10.2135/cropsci2010.03.0163 |
| Web URL(s): https://acsess.onlinelibrary.wiley.com/doi/10.2135/cropsci2010.03.0163 Last checked: 03/24/2024 Access conditions: Item is within a limited-access website https://acsess.onlinelibrary.wiley.com/doi/epdf/10.2135/cropsci2010.03.0163 Last checked: 03/24/2024 Requires: PDF Reader Access conditions: Item is within a limited-access website |
| MSU catalog number: b2211522a |
| Find from within TIC: Digitally in TIC by record number. |
| Request through your local library's inter-library loan service (bring or send a copy of this TGIF record) |