Full TGIF Record # 110190
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Web URL(s):http://usgatero.msu.edu/v05/n05.pdf
    Last checked: 03/24/2006
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Report
Author(s):Reinert, James A.; Read, J. C.; McCoy, M. E.; Heitholt, J. J.; Metz, S. P.; Bauernfeind, R. J.
Author Affiliation:Reinert: Professor of Entomology (Turfgrass and Ornamental Plants), TAES Faculty Fellow and TAMUS Regents Fellow; Read: Professor of Turfgrass & Forage Breeding; Heitholt: Associate Professor of Plant Physiology; McCoy: Research Associate; Metz: Research Associate, Texas Agricultural Experiment Station, Texas A&M University Research & Extension Center, Dallas, Texas; Bauernfeind: Professor of Entomology, Kansas State University, Manhattan, Kansas
Title:Susceptibility of bluegrasses to bluegrass billbug
Source:USGA Turfgrass and Environmental Research Online. Vol. 5, No. 5, March 1 2006, p. [1-9].
Publishing Information:Far Hills, NJ: United States Golf Association, Green Section
# of Pages:11
Keywords:TIC Keywords: Sphenophorus parvulus; Injuries by insects; Poa pratensis; Poa arachnifera; Pest profile; Susceptibility; Hybrids; Insect resistance
Abstract/Contents:"Researchers with the Texas Agricultural Experiment Station, Texas A&M University Research & Extension Center at Dallas have evaluated at least 15 different turfgrass species for resistance or susceptibility to either one or several of 12 different insect or mite pests associated with each grass. Reported here is the tolerance discovered in 'Reveille' hybrid bluegrass [Texas bluegrass (P. arachnifera) X Kentucky bluegrass (Poa pratensis)] to the bluegrass billbug (Sphenophorus parvulus). Before this study, no information was available on the resistance or susceptibility of Texas bluegrass or its hybrid crosses with Kentucky bluegrass to the bluegrass billbug. This experiment compared the susceptibility of three Texas bluegrass genotypes with two Kentucky bluegrass genotypes and five F1 hybrids among the tested parents. The hybrid, 'Reveille', exhibited a level of tolerance to bluegrass billbug larval damage and ranked in the top statistical grouping for the least leaf-firing (percent of dead or dying leaf and shoot tissue), reduction in tiller number and longest tiller, reduction in number and length of rhizomes, reduction in shoot and total dry weight (<30%) per plants. One of the hybrids, TXKY96-66-22, sustained 77% reduction in total dry weight and was the most susceptible genotype in the study. No single measured grass trait stood out as being the best for evaluating the effect of bluegrass billbug on the Poa genotypes, but a combination of traits showed that P. arachnifera and its hybrid crosses with P. pratensis produce individual plants that are both tolerant and susceptible. The use of self-contained field cages (metal tanks) provided a good test arena to evaluate plant material against soil insects such as the bluegrass billbug. However the limiting factor for this procedure was the small number of genotypes that could be evaluated at one time. A resistant or tolerant cultivar has the potential to reduce the amount of pesticides needed for control, and therefore extend the useful life of the pesticide. Other benefits include reduced impact on non-target organisms, reduced human exposure and reduced environmental harm."
Language:English
References:21
See Also:Other Reports from this USGA research project: 1998-19-127
Note:Reprint appears in Cactus Clippings, May/June 2006, p. 31
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ASA/CSSA/SSSA Citation (Crop Science-Like - may be incomplete):
Reinert, J. A., J. C. Read, M. E. McCoy, J. J. Heitholt, S. P. Metz, and R. J. Bauernfeind. 2006. Susceptibility of bluegrasses to bluegrass billbug. USGA Turfgrass Environ. Res. Online. 5(5):p. [1-9].
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http://usgatero.msu.edu/v05/n05.pdf
    Last checked: 03/24/2006
    Requires: PDF Reader
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MSU catalog number: SB 433 .A1 A65 [online]
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