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| Web URL(s): | https://archive.lib.msu.edu/tic/its/articles/2001jou798.pdf
Last checked: 09/29/2008
Requires: PDF Reader |
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| Publication Type:
| Refereed |
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| Author(s): | Reinert, J. A.;
Engelke, M. C. |
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| Author Affiliation: | Texas A & M University Research and Extension Center, Dallas, TX |
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| Title: | Resistance in zoysiagrass, Zoysia spp., to the tropical sod webworm, Herpetogramma phaeopteralis Guenee |
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| Section: | Turfgrass insect pests
Other records with the "Turfgrass insect pests" Section
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| Meeting Info.: | Toronto, Ontario, Canada: July 2001 |
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| Source: | International Turfgrass Society Research Journal. Vol. 9, No. Part 2, 2001, p. 798-801. |
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| Publishing Information: | Oakville, Ontario, Canada: International Turfgrass Society |
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| # of Pages: | 4 |
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| Keywords: | TIC Keywords: Zoysia; Herpetogramma phaeopteralis; Insect pests; Choice of cultivar; Insect resistance; Feeding preferences; Larva
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| Abstract/Contents: | "The tropical sod webworm, Herpetogramma phaeopteralis Guenee (Lepidoptera: Pyralidae) is a primary pest of turfgrass especially in the southern United States and many islands of the Caribbean Archipelago. Twenty cultivars and genotypes of zoysiagrass, Zoysia spp., were evaluated for resistance to tropical sod webworm adult preference for oviposition and larval feeding. Adults expressed a preference among the zoysiagrass genotypes for egg deposition as expressed by the resulting larval feeding. `Cavalier', DALZ8501 and JZ-1 exhibited high resistance (rankings < 7) with low feeding damage while `Meyer' and DALZ8516 (ranking > 1.5) sustained near complete defoliation. A similar ranking was produced when neonate larvae were allowed to develop on each zoysiagrass in a no-choice experiment. Cavalier, DALZ8501, `Korean Common' and `El Toro' exhibited high resistance in the form of much smaller larvae (6.3-7.5 mg) at the 15-day evaluation. Conversely, larvae developing on `Diamond', Meyer and DALZ8516 were significantly larger (36.4 to 41.0 mg). Additionally, larvae developing on the resistant Cavalier, Korean Common, El Toro, and DALZ8501 required more than a week longer to reach pupation compared to larvae feeding on Diamond, Meyer and DALZ8516, which required only 19.1-19.7 days. Compared to the industry standard, Meyer (19 days), Cavalier required 12 days longer to pupation. During this period, larvae were much smaller, eating far less and presumably they would be more vulnerable to predation. The highest mortality was recorded on Cavalier. In contrast, larvae feeding on the three most susceptible genotypes had an accumulated mortality of 6.7 to 13.4% at adult emergence." |
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| Language: | English |
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| References: | 12 |
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| Note: | Tables |
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| ASA/CSSA/SSSA Citation (Crop Science-Like - may be incomplete):
Reinert, J. A., and M. C. Engelke. 2001. Resistance in zoysiagrass, Zoysia spp., to the tropical sod webworm, Herpetogramma phaeopteralis Guenee. Int. Turfgrass Soc. Res. J. 9(Part 2):p. 798-801. |
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| Web URL(s):
https://archive.lib.msu.edu/tic/its/articles/2001jou798.pdf
Last checked: 09/29/2008
Requires: PDF Reader |
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MSU catalog number: SB 433 .I52 v. 9 |
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