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| DOI: | 10.21273/HORTSCI15293-20 |
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| Web URL(s): | https://journals.ashs.org/hortsci/view/journals/hortsci/55/11/article-p1811.xml?ArticleBodyColorStyles=fullText
Last checked: 11/23/2020
https://journals.ashs.org/hortsci/view/journals/hortsci/55/11/article-p1811.xml?ArticleBodyColorStyles=pdf-4377
Last checked: 11/23/2020
Requires: PDF Reader |
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| Publication Type:
| Refereed |
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| Author(s): | Singh, Gurjit;
Joseph, Shimat V.;
Schwartz, Brian |
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| Author Affiliation: | Singh and Joseph: Department of Entomology, University of Georgia, Griffin, GA; Schwartz: Department of Crop and Soil Sciences, University of Georgia, Tifton, GA |
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| Title: | Screening newly developed bermudagrasses for host plant resistance against fall armyworm (Lepidoptera: noctuidae) |
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| Source: | HortScience. Vol. 55, No. 11, November 2020, p. 1811-1816. |
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| Publishing Information: | Alexandria, Virginia: American Society for Horticultural Science |
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| # of Pages: | 6 |
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| Related Web URL: | https://journals.ashs.org/hortsci/view/journals/hortsci/55/11/article-p1811.xml?ArticleBodyColorStyles=contentSummar
Last checked: 11/23/2020
Notes: Abstract only |
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| Keywords: | Author-Supplied Keywords: Emerging standard; Resistant control; Susceptible control; Spodoptera frugipedra; Turfgrass; Zoysiagrass
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| Abstract/Contents: | "The fall armyworm, Spodoptera frugiperda (J.E. Smith) (Lepidoptera: Noctuidae), is an important pest of warm-season turfgrass species, including bermudagrass (Cynodon spp.). Bermudagrass is a popular turfgrass that is widely planted on golf courses, athletic grounds, and ornamental landscapes across the country and throughout the world. Spodoptera frugiperda infestation is often sporadic; however, when it does occur, damage can be severe. Host plant resistance against S. frugiperda can be a valuable tool for reducing or preventing the use of insecticides. Therefore, the objective of this study was to determine resistance against S. frugiperda in a few promising bermudagrasses. Fourteen experimental bermudagrass genotypes plus two control cultivars, Zeon zoysiagrass (resistant control) and TifTuf bermudagrass (susceptible control), were evaluated against S. frugiperda to determine host plant resistance in the laboratory. The results showed that the resistant control, Zeon zoysiagrass, was more resistant than the other genotypes to S. frugiperda larvae. To determine the response of the experimental lines to S. frugiperda as compared with that of the controls, three indices were developed based on survival, development, and overall susceptibility. According to the susceptibility index, 13-T-1032, T-822, 11-T-510, 12-T-192, 11-T-56, 09-T-31, 11-T-483, and 13-T-1067 were the top-ranked bermudagrasses. Among these, the responses of 13-T-1032, T-822, 11-T-510, 11-T-56, 09-T-31, and 11-T-483 were comparable to that of TifTuf, and antibiosis was the underlying mechanism of resistance. Additionally, larval length, head capsule width, and weight were negatively associated with the days of pupation and adult emergence and positively associated with pupal length, thorax width, and weight. These results will help refine future breeding and with investigations of resistance against the fall armyworm." |
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| Language: | English |
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| References: | 20 |
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| Note: | Tables
Graphs |
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| ASA/CSSA/SSSA Citation (Crop Science-Like - may be incomplete):
Singh, G., S. V. Joseph, and B. Schwartz. 2020. Screening newly developed bermudagrasses for host plant resistance against fall armyworm (Lepidoptera: noctuidae). HortScience. 55(11):p. 1811-1816. |
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| DOI: 10.21273/HORTSCI15293-20 |
| Web URL(s):
https://journals.ashs.org/hortsci/view/journals/hortsci/55/11/article-p1811.xml?ArticleBodyColorStyles=fullText
Last checked: 11/23/2020
https://journals.ashs.org/hortsci/view/journals/hortsci/55/11/article-p1811.xml?ArticleBodyColorStyles=pdf-4377
Last checked: 11/23/2020
Requires: PDF Reader |
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MSU catalog number: b2217685a |
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