Full TGIF Record # 71750
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DOI:10.1603/0022-0493-93.6.1662
Web URL(s):https://academic.oup.com/jee/article/93/6/1662/2217358/Overseeding-Endophytic-Perennial-Ryegrass-into
    Last checked: 02/28/2017
    Access conditions: Item is within a limited-access website
    Notes: Guide page
Publication Type:
i
Refereed
Author(s):Richmond, Douglas S.; Niemczyk, Harry D.; Shetlar, David J.
Author Affiliation:Department of Entomology, The Ohio State University, OARDC, Wooster, OH
Title:Overseeding endophytic perennial ryegrass into stands of Kentucky bluegrass to manage bluegrass billbug (Coleoptera: Curculionidae)
Section:Ecology and behavior
Other records with the "Ecology and behavior" Section
Source:Journal of Economic Entomology. Vol. 93, No. 6, December 2000, p. 1662-1668.
Publishing Information:Lanham, MD: Entomological Society of America
# of Pages:7
Keywords:TIC Keywords: Botanical composition; Choice of species; Endophyte-infected plants; Insect control; Lolium perenne; Overseeding; Pest density; Poa pratensis; Seeding rate; Sphenophorus parvulus; Visual evaluation
Cultivar Names:Repell II; Triple Play
Abstract/Contents:"Studies were conducted to determine the utility of overseeding endophyte enhanced varieties of perennial ryegrass, Lolium perenne L. into existing stands of Kentucky bluegrass, Poa pratensis L., to manage bluegrass billbug, Sphenophorus parvulus Gyllenhal, larval populations and their damage. Two commercial varieties of endophyte enhanced perennial ryegrass (Repell II and Triple Play) were overseeded at two different rates in the field. S. parvulus larval populations, their damage, and turfgrass composition were monitored over the course of 3 yr. Significantly fewer larvae were found in plots overseeded with Repell II, whereas Triple Play had no significant effect on larval population density. Endophyte infection was confirmed in ≅58% of all Repell II shoots, whereas only ≅31% of Triple Play shoots were infected. Regression analysis, using a segmented model , demonstrated that larval populations declined as the proportion of endophyte-infected perennial ryegrass increased. However, no additional reductions in larval population density were achieved in stands containing >40% endophyte-infected perennial ryegrass. Visual damage varied with cultivar, seeding rate, and year, but generally decreased as the proportion of endophyte-infected perennial ryegrass increased. Although seeding rate had an initial effect on turfgrass composition, these differences were not detected after the first year of the study. Results indicate overseeding existing stands of Kentucky bluegrass with endophytic varieties of perennial ryegrass can reduce S. parvulus larval populations and their damage. However, plant genetic characteristics (i.e., different cultivars) may be overriding determinants of many aspects of plant performance including establishment, tolerance to insect feeding, and expression of endophyte-mediated resistance."
Language:English
References:23
Note:Tables
Graphs
ASA/CSSA/SSSA Citation (Crop Science-Like - may be incomplete):
Richmond, D. S., H. D. Niemczyk, and D. J. Shetlar. 2000. Overseeding endophytic perennial ryegrass into stands of Kentucky bluegrass to manage bluegrass billbug (Coleoptera: Curculionidae). J. Econ. Entomol. 93(6):p. 1662-1668.
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DOI: 10.1603/0022-0493-93.6.1662
Web URL(s):
https://academic.oup.com/jee/article/93/6/1662/2217358/Overseeding-Endophytic-Perennial-Ryegrass-into
    Last checked: 02/28/2017
    Access conditions: Item is within a limited-access website
    Notes: Guide page
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MSU catalog number: SB 931 .A1 J6
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