Hostname: page-component-586b7cd67f-2plfb Total loading time: 0 Render date: 2024-11-29T01:12:40.384Z Has data issue: false hasContentIssue false
  • English
  • Français

THE EFFECTS OF ALFALFA PLANT BUG (HEMIPTERA: MIRIDAE) FEEDING LATE IN THE SEASON ON ALFALFA SEED YIELD IN NORTHERN SASKATCHEWAN1

Published online by Cambridge University Press:  31 May 2012

Juliana J. Soroka  and
Dorothy C. Murrell
Juliana J. Soroka
Affiliation:
Agriculture Canada Research Station, 107 Science Place, Saskatoon, Saskatchewan, Canada S7N 0X2
Dorothy C. Murrell
Affiliation:
Saskatchewan Agriculture and Food, PO Box 3003, Prince Albert, Saskatchewan, Canada S6V 6G1
Get access Rights & Permissions [Opens in a new window]

Abstract

A 4-year field cage study was conducted to determine what effects feeding of alfalfa plant bug, Adelphocoris lineolatus (Goeze), late in the season had on alfalfa seed yields. When zero, one, two, or four alfalfa plant bugs were placed in sleeve cages containing stems of alfalfa at the green pod stage of growth, there was a significant decrease in the number of pods per cage and per raceme, the number of healthy seeds, and the weight of seeds with two or four bugs per cage. Increasing the duration of infestation resulted in significant increases in the number of damaged seeds per cage. An insecticide field trial was conducted in north central Saskatchewan in 1988 to determine what effects the occurrence of plant bugs had on seed yields of alfalfa. Alfalfa plant bug, lygus bug (Lygus spp.), pea aphid [Acyrthosiphon pisum (Harris)], and beneficial arthropod populations were monitored from 23 June to 1 September 1988. Seed yields were significantly greater in plots that were treated with trichlorfon in June and in June and August than in plots that were treated in August alone. The implications of a large alfalfa plant bug population late in the season to alfalfa seed production in the area are discussed.

Résumé

Une étude d’une durée de 4 ans sur des Capsides de la luzerne [Adelphocoris lineolatus (Goeze)] dans des cages installées en nature a permis de déterminer les effets d’une alimentation saisonnière tardive de ces punaises sur la production de graines de luzerne. Lorsque zero, un, deux, ou quatre capsides étaient placés dans des cages en manchon autour de tiges de luzerne au stade des gousses vertes, il se produisait une réduction significative du nombre de gousses par cage et par grappe, du nombre de graines saines, et de la masse de graines avec deux ou quatre capsides par cage. La prolongation de l’infestation a entraîné une augmentation significative du nombre de graines endommagées par cage. Une administration expérimentale d’insecticide en nature dans le nord de la Saskatchewan a été tentée en 1988 dans le but de déterminer les effets des capsides sur la production de graines de luzerne. Les populations de capsides, de lygées (Lygus spp.), de Pucerons du pois [Acyrthosiphon pisum (Harris)] et d’arthropodes bénéfiques ont été étudiées du 23 juin au 1er septembre 1988. La production de graines était significativement plus abondante dans les champs traités au trichlorfon en juin, ou en juin et en août, que dans les champs traités seulement en août. Les conséquences de la présence d’une forte population du Capside de la luzerne tard dans la saison sur la production de graines dans la région fait l’objet d’une discussion.

[Traduit par la rédaction]

Type
Articles
Information
The Canadian Entomologist , Volume 125 , Issue 5 , October 1993 , pp. 815 - 824
Copyright
Copyright © Entomological Society of Canada 1993

Access options

Get access to the full version of this content by using one of the access options below. (Log in options will check for institutional or personal access. Content may require purchase if you do not have access.)

References

Charnetski, W.A. 1983 a. Comparison of effects of spring and/or summer Ripcord application and/or Dylox application on alfalfa weevil (Hypera postica), alfalfa plant bug (Adelphocoris spp.), lygus bug (Lygus spp.) and beneficial arthropod populations, and on seed yield in an irrigated alfalfa field. pp. 152–153 in Expert Committee on Pesticide Usage in Agriculture. Pesticide Research Report 1983: 422 pp.Google Scholar
Charnetski, W.A. 1983 b. Comparison of effects of spring and/or summer Decis application on alfalfa weevil (Hypera postica), alfalfa plant bug (Adelphocoris spp.), lygus bug (Lygus spp.) and beneficial arthropod populations, and on seed yield in a dryland alfalfa field. pp. 154–155 in Expert Committee on Pesticide Usage in Agriculture. Pesticide Research Report 1983: 422 pp.Google Scholar
Craig, C.H. 1961. Chemical control of Liocoris spp., Adelphocoris spp. and Plagiognathus medicagus Arrand (Hemiptera: Miridae) on northern alfalfa seed fields. Canadian Journal of Plant Science 41: 166–169.CrossRefGoogle Scholar
Craig, C.H. 1963. The alfalfa plant bug, Adelphocoris lineolatus (Goeze) in northern Saskatchewan. The Canadian Entomologist 95: 6–13.CrossRefGoogle Scholar
Craig, C.H., and Loan, C.C.. 1980. Adelphocoris lineolatus (Goeze), Alfalfa plant bug (Heteroptera: Miridae). pp. 9–10in Kelleher, J.S., and Hume, M.A. (Eds.), Biological Control Programmes Against Insects and Weeds in Canada 1969–1980. Commonwealth Agricultural Bureaux, Slough, England.Google Scholar
Harris, J.L. 1992. Insect Control in Field Crops 1992. Saskatchewan Agriculture and Food, Regina, Sask. 42 pp.Google Scholar
Hori, K., and Kishino, M.. 1992. Feeding of Adelphocoris suturalis Jakovlev (Heteroptera: Miridae) on alfalfa plants and damage caused by the feeding. Research Bulletin of Obihiro University, I 17: 357–365.Google Scholar
Hughes, J.D. 1943 a. The Alfalfa Plant Bug Adelphocoris lineolatus (Goeze) and Other Miridae in Relation to Alfalfa-Seed Production in Minnesota. University of Minnesota Technical Bulletin 161: 80 pp.Google Scholar
Hughes, J.D. 1943 b. The Alfalfa Plant Bug and Other Related Plant Bugs on Alfalfa in Minnesota, and their Control. Report of Investigations No. 2. Office of the Commissioner of the Iron Range Resources and Rehabilitation, St. Paul, MN. 17 pp.Google Scholar
Murrell, D.C. 1987. Alfalfa Seed Field Insect Survey 1984–1986. Final Report. New Crop Development Fund, Agriculture Canada, Ottawa, Ont. 68 pp.Google Scholar
Richards, K.W. 1984. Alfalfa Leafcutter Bee Management in Western Canada. Agriculture Canada Publication 1495/E: 53 pp.Google Scholar
Romankow, W. 1959. The results of the studies on the biology of Adelphocoris lineolatus Goeze (Heteroptera, Miridae) with reference to certain problems of its ecology. Polskie Pismo Entomologiczne 24: 55–105.Google Scholar
SAS Institute. 1985. SAS Users' Guide: Statistics. Version 5 Edition. SAS Institute, Cary, NC. 956 pp.Google Scholar
Schaber, B.D., Charnetski, W.A., and Entz, T.. 1990. Early and late-season insecticide applications in seed alfalfa: Impact on pest species and yield. Journal of Entomological Science 25: 548–558.CrossRefGoogle Scholar
Sedivy, J. 1972. Damage to alfalfa seed crops by the bug Lygus rugulipennis Popp. Zeitschrift fur Pflanzenkrankh und Pflanzenschutz 79: 407–412.Google Scholar
Sedivy, J., and Kodys, F.. 1972. Possibilities of controlling Heteroptera in seed lucerne. Agrochemia 12: 357–359.Google Scholar
Steel, R.G.D., and Torrie, J.H.. 1980. Principles and Procedures of Statistics, 2nd ed. McGraw-Hill, New York, NY. 633 pp.Google Scholar
Waller, R.A., and Duncan, D.B.. 1969. A Bayes rule for the symmetric multiple comparison problem. Journal of the American Statistical Society 64: 1484–1503 and (1972) Corrigenda 67: 235–255.Google Scholar
Wipfli, M.S., Wedburg, J.L., and Hogg, D.B.. 1990. Damage potentials of three plant bug (Hemiptera: Heteroptera: Miridae) species to birdsfoot trefoil grown for seed in Wisconsin. Journal of Economic Entomology 83: 580–584.CrossRefGoogle Scholar