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| Web URL(s): | http://usgatero.msu.edu/v10/n07.pdf
Last checked: 03/30/2011
Requires: PDF Reader |
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| Publication Type:
| Report |
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| Author(s): | Reinert, James A.;
Engelke, M. C. |
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| Author Affiliation: | Reinert: Regents Fellow and Professor; Engelke: AgriLife Research Fellow and Professor, Texas AgriLife Research & Extension Center, Texas A&M System, Dallas, TX |
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| Title: | Zoysiagrass resistance to fall armyworm |
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| Source: | USGA Turfgrass and Environmental Research Online. Vol. 10, No. 7, April 1 2011, p. [1-9]. |
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| Publishing Information: | Far Hills, NJ: United States Golf Association, Green Section |
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| # of Pages: | 11 |
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| Keywords: | TIC Keywords: Cultivar evaluation; Disease resistance; Feeding preferences; Insect surveys; Larva; Spodoptera frugiperda; Zoysia
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| Abstract/Contents: | "The fall armyworm [Spodoptera frugiperda (J. E. Smith)] (Lepidoptera: Noctuidae) is a pest of most turfgrass species in the United States. Twelve cultivars and genotypes of zoysiagrass (Zoysia spp.) were evaluated for resistance to both neonate and 4-day-old fall armyworm larvae. Three cultivars, 'Cavalier', 'Emerald', and 'Belair', were the most resistant to feeding by neonate larvae with less than 5% of the larvae surviving beyond 4 days of feeding. After 10 days, 10% or less of the confined larvae was alive on these three cultivars along with 'Meyer', 'Korean Common', 'El Toro' and DALZ8501. When most of the same genotypes were exposed to 4-day-old larvae that developed on a susceptible zoysiagrass host, approximately 20% of the mortality was eliminated. Survivorship for 7-day-old larvae (after 3 days feeding) was 40% or greater on all genotypes except for 'Cavalier'. Only 'Cavalier', DALZ8501, and 'Korean Common' exceeded 85% mortality after 13 days of feeding. 'Meyer' produced 97.6% mortality of neonate larvae, but only 46.7% of the larvae that first fed on a susceptible host were killed. The 4-day-old larvae that fed on the resistant genotypes usually weighed less than half the weight of those fed on susceptible 'Palisades' and DALZ8516." |
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| Language: | English |
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| References: | 36 |
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| Note: | Summary as abstract
Pictures, color
Tables
Graphs |
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| ASA/CSSA/SSSA Citation (Crop Science-Like - may be incomplete):
Reinert, J. A., and M. C. Engelke. 2011. Zoysiagrass resistance to fall armyworm. USGA Turfgrass Environ. Res. Online. 10(7):p. [1-9]. |
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| Web URL(s):
http://usgatero.msu.edu/v10/n07.pdf
Last checked: 03/30/2011
Requires: PDF Reader |
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MSU catalog number: b3952822a |
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