Full TGIF Record # 90845
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Web URL(s):http://www.bioone.org/bioone/?request=get-document&issn=0046-225X&volume=032&issue=04&page=0907
    Last checked: 11/2005
    Access conditions: Item is within a limited-access website
Publication Type:
Author(s):Braman, S. K.; Duncan, R. R.; Hanna, W. W.; Engelke, M. C.
Author Affiliation:Braman: Department of Entomology, Colledge of Agricultural and Environmental Sciences, University of Georgia, Griffin, Georgia; Duncan University of Georgia, Department of Crop and Soil Sciences, Griffin, Georgia; Hanna: United States Department of Agriculture, Agricultural Research Service, Coastal Plain Experiment Station, Tifton Georgia Engelke: Texas Agricultural Experiment Station, Dallas Texas
Title:Arthropod predator occurrence and performance of Geocoris uliginosus (Say) on pest-resistant and susceptible turfgrasses
Section:Plant-insect interactions
Other records with the "Plant-insect interactions" Section
Source:Environmental Entomology. Vol. 32, No. 4, August 2003, p. 907-914.
# of Pages:8
Publishing Information:College Park, MD: Entomological Society of America
Keywords:TIC Keywords: Insect resistance; Pest resistance; Geocoris uliginosus; Paspalum vaginatum; Cynodon dactylon; Cynodon transvaalensis; Zoysia Japonica; Zoysia matrella; Biological control organisms; Spodoptera frugiperda; Insect control; Biological control
Cultivar Names:Sea Isle I; 561-79; Cavalier; Palisades; TifSport; TifEagle
Abstract/Contents:"Interactions between host plant resistance and biological control may be advantageous or disadvantageous for pest management. Turfgrass cultivars have rarely been tested for extrinsic resistance characteristics such as occurrence and performance of beneficial arthropods on plants with resistance to known turf pests. Among six turfgrass cultivars tested, the bigeyed bug, Geocoris uliginosus (Say) nymphs varied in ability to reduce numbers of fall armyworm, Spodoptera frugiperda (J.E. Smith), larvae. the six grasses tested (Sea Isle 1 and 561-79 seashore paspalum, Paspalum vaginatum Swartz; TifSport and TifEagle bermudagrass, Cynodon dactylon [L.] x C. transvaalensis [Burtt-Davy]; and Cavalier and Palisades zoysiagrass Zoysia japonica von Steudel and Z. matrella [L.] Merrill) represented a range in resistance to S. frugiperda. In the laboratory, the greatest reduction in S. frugiperda larvae by a low density of G. uliginosus occurred on the resistant Cavalier zoysiagrass. A 7-fold difference in weight of 10-d-old larvae between those feeding on susceptible versus resistant grasses suggested that on the resistant grass larvae remained for a longer period in a size range susceptible to predation. Results of laboratory studies were not directly translated to the field, in which a diverse predatory arthopod community varied in composition depending on turfgrass cultivar. In the field, the greatest reduction in S. frugiperda larvae by a low density of G. ugliginosus occurred on Sea Isle 1 and 561-79 seashore paspalum grass. In the field, vacuum samples indicated that predaceous Heteroptera were most abundant in paspalum grasses and bermudagrasses, while Carabidae, Staphylinidae, and Araneae were more common in zoysiagrasses. In contrast, pitfall traps indicated that carabids were more common in bermudagrasses, Araneae and Staphylinids were similar among grass taxa, and Cicindellidae were most common in paspalum grasses and bermudagrasses. Predation was never significantly decreased on resistant turfgrass cultivars in any of the experiments described in this work, indicating no negative tritrophic interactions."
ASA/CSSA/SSSA Citation (Crop Science-Like - may be incomplete):
Braman, S. K., R. R. Duncan, W. W. Hanna, and M. C. Engelke. 2003. Arthropod predator occurrence and performance of Geocoris uliginosus (Say) on pest-resistant and susceptible turfgrasses. Environ. Entomol. 32(4):p. 907-914.
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    Last checked: 11/2005
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