Full TGIF Record # 42325
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Web URL(s):https://academic.oup.com/jee/article/91/1/324/2216877/Effect-of-Endophyte-Incidence-in-Perennial
    Last checked: 02/28/2017
    Access conditions: Item is within a limited-access website
    Notes: Guide page
Publication Type:
i
Refereed
Author(s):Carrière, Yves; Bouchard, André; Bourassa, Steve; Brodeur, Jaques
Author Affiliation:Départment de Phytologie, Centre de Recherche en Horticulture, Pavillion de ÍEnvirotron, Université Laval, PQ, Canada G1K 7P4
Title:Effect of endophyte incidence in perennial ryegrass on distribution, host-choice, and performance of the hairy chinch bug (Hemiptera: Lygaeidae)
Section:Plant Resistance
Other records with the "Plant Resistance" Section
Source:Journal of Economic Entomology. Vol. 91, No. 1, February 1998, p. 324-328.
Publishing Information:Lanham, MD: Entomological Society of America
# of Pages:5
Keywords:TIC Keywords: Endophytic fungi; Poa pratensis; Blissus leucopterus hirtus; Thatch; Bioassay; Lolium perenne; Blends; Feeding preferences; Insect pests
Cultivar Names:Prelude II; Merit
Abstract/Contents:"Finding toxic, fungal endophyte-infected, grass cultivars that are not avoided by phytophagous insects could not be an advantageous strategy when mixing Kentucky bluegrass, Poa pratensis L., and endophyte-infected grasses to control turfgrass pests. Field observations revealed that nymphs of the hairy cinch [chinch] bug, Blissus leucopterus hirtus Montadon, are found mainly in thatch rather than on plants, regardless of the time of day. We therefore developed laboratory bioassays incorporating thatch as a component of the hairy cinch [chinch] bug habitat as a 1st step toward searching for advantageous grass-endophyte association for cinch [chinch] bug management in northeastern America. In nonchoice tests, a high incidence of endophyte (Neotyphodium) infection in tillers of the perennial ryegrass `Prelude II', Lolium perenne L. induced high mortality of 3rd instars, whereas Prelude II with lower incidence or infected tillers or the Kentucky bluegrass `Merit' were significantly more suitable. Incidence of infected plants affected nymph habitat selection, because all individuals in the presence of Prelude II with evaluated percentage of infected tillers were found in thatch, whereas a significantly higher proportion of plants with was colonized by nymphs confined with Prelude II with a lower incidence of endophyte infection or with Merit. In choice tests, Merit was strongly preferred over Prelude II, regardless of endophyte status of the ryegrass. Moreover, nymph mortality was not affected by the presence of endophyte-infected Prelude II when Merit was also available. These results suggest that highly mobile 3rd-instar hairy cinch [chinch] bugs have the capicity to avoid toxic endophyte-infected grass cultivars. Such behavior could limit the value of mixing endophyte-infected grasses with Kentucky bluegrass for lawn protection, unless toxic cultivars that are not avoided by the hairy cinch [chinch] bug can be found."
Language:English
References:21
Note:Figures
Tables
ASA/CSSA/SSSA Citation (Crop Science-Like - may be incomplete):
Carrière, Y., A. Bouchard, S. Bourassa, and J. Brodeur. 1998. Effect of endophyte incidence in perennial ryegrass on distribution, host-choice, and performance of the hairy chinch bug (Hemiptera: Lygaeidae). J. Econ. Entomol. 91(1):p. 324-328.
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Web URL(s):
https://academic.oup.com/jee/article/91/1/324/2216877/Effect-of-Endophyte-Incidence-in-Perennial
    Last checked: 02/28/2017
    Access conditions: Item is within a limited-access website
    Notes: Guide page
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