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| Web URL(s): | https://scisoc.confex.com/scisoc/2020am/meetingapp.cgi/Paper/126843
Last checked: 09/14/2023 |
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| Publication Type:
| Report |
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| Content Type: | Abstract or Summary only |
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| Author(s): | Daly, Emeline;
Kuhar, Thomas;
McCall, David S. |
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| Author Affiliation: | Daly and McCall: School of Plant and Environmental Sciences, Virginia Tech, Blacksburg, VA; Kuhar: Department of Entomology, Virginia Tech, Blacksburg, VA |
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| Title: | Comparing annual bluegrass weevil larval sampling techniques for accurate monitoring |
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| Section: | Turfgrass pest management poster: Diseases, insects, weeds (includes student competition)
Other records with the "Turfgrass pest management poster: Diseases, insects, weeds (includes student competition)" Section
C05 turfgrass science
Other records with the "C05 turfgrass science" Section
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| Meeting Info.: | San Antonio, Texas: November 9-13, 2020 |
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| Source: | ASA, CSSA, SSSA International Annual Meeting. November 2020, p. 126843. |
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| Publishing Information: | [Madison, Wisconsin]: [American Society of Agronomy, Crop Science Society of America, and Soil Science Society of America] |
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| # of Pages: | 1 |
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| Abstract/Contents: | "Annual bluegrass weevil (ABW) (Listronotus maculicollis) (Coleoptera: Curculionidae) is an established pest of cool-season golf course turfgrasses in the northeastern and Mid-Atlantic US, most notably annual bluegrass (Poa annua) and creeping bentgrass (Agrostis stolonifera). Scouting for ABW adults and larvae is essential for proper application timing. Current recommendations for sampling ABW larvae involve collecting soil plugs, breaking them apart in a saltwater solution, and counting the number of larvae that float to the surface. Noticing small larvae and sifting through numerous tiny grass clippings on the surface are drawbacks of this method. Use of heat extraction has been explored recently as an alternative to salt floats. The technique uses a heat lamp to dry the soil plug in a Berlese-Tullgren funnel and force ABW larvae downward though the soil and into a catch jar in order to escape the extreme heat. Our research objective was to compare these two methods using soil plugs collected from two different golf courses in Virginia with established populations of ABW. Larvae from matched pair plant canopy cores were extracted using either the salt float method or the Berlese-Tullgren funnel method. Results showed that the two extraction methods are highly correlated with regards to the number of ABW larvae (r2 = 0.7955), and there was no significant difference between the methods in number of larvae extracted (P = 0.408). Our research confirms that both methods are comparable for extracting ABW larvae and that the method used can be determined by the turfgrass manager based on external factors such as time, experience, and preference." |
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| Language: | English |
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| References: | 3 |
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| Note: | This item is an abstract only!
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| ASA/CSSA/SSSA Citation (Crop Science-Like - may be incomplete):
Daly, E., T. Kuhar, and D. S. McCall. 2020. Comparing annual bluegrass weevil larval sampling techniques for accurate monitoring. Agron. Abr. p. 126843. |
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| Web URL(s):
https://scisoc.confex.com/scisoc/2020am/meetingapp.cgi/Paper/126843
Last checked: 09/14/2023 |
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