Hostname: page-component-84b7d79bbc-g5fl4 Total loading time: 0 Render date: 2024-07-30T08:19:00.424Z Has data issue: false hasContentIssue false
  • English
  • Français

Managing cabbage seedpod weevils (Coleoptera: Curculionidae) in canola (Brassicaceae) – are Lygus (Hemiptera: Miridae) affected?

Published online by Cambridge University Press:  10 December 2018

H.A. Cárcamo ,
S.B. Meers  and
C.E. Herle
H.A. Cárcamo*
Affiliation:
Agriculture and Agri-Food Canada, 5403 – 1st Avenue South, Lethbridge, Alberta, T1J 4B1, Canada
S.B. Meers
Affiliation:
Alberta Agriculture and Forestry, Crop Diversification Centre, Horticultural Station Road E, Brooks, Alberta, T1R 1E6, Canada
C.E. Herle
Affiliation:
Agriculture and Agri-Food Canada, 5403 – 1st Avenue South, Lethbridge, Alberta, T1J 4B1, Canada
*
1Corresponding author (e-mail: hector.carcamo@canada.ca)
Get access Rights & Permissions [Opens in a new window]

Abstract

Cabbage seedpod weevil (Ceutorhynchus obstrictus Marsham; Coleoptera: Curculionidae) and Lygus Hahn (Hemiptera: Miridae) species are part of the late season insect pest complex of canola (Brassica Linnaeus; Brassicacea) in the southern prairies of Canada. From 2010 to 2013, large strips in 73 commercial fields were studied in southern Alberta to validate action thresholds for cabbage seedpod weevil and assess the impact of insecticide spraying at the early flower stage for cabbage seedpod weevils on abundance of Lygus at the pod stage. Only fields planted in April accumulated the damaging populations of cabbage seedpod weevils, such that the application of an insecticide resulted in significant yield protection. The economic injury level for the cabbage seedpod weevil was calculated at 20 cabbage seedpod weevils per 10 sweeps, but an action threshold of 25–40 is recommended because sampling mainly occurs along the edge where cabbage seedpod weevils are initially concentrated. At the pod stage, Lygus were lower in strips sprayed with insecticides at the early flower stage than in those not sprayed, but the differences were not statistically significant. Furthermore, Lygus were generally below economically damaging levels in early seeded fields. Therefore, there is no benefit of spraying early seeded fields to attempt to prevent Lygus outbreaks when cabbage seedpod weevils are below thresholds because Lygus may pose a risk only in fields planted later in the season.

Type
Insect Management
Information
The Canadian Entomologist , Volume 151 , Issue 1 , February 2019 , pp. 85 - 93
Copyright
© 2018 Her Majesty the Queen in Right of Canada 

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.)

Footnotes

Subject editor: Andrew Smith

References

Brown, J., McCaffrey, J.P., Harmon, B.L., Davis, J.B., Brown, A.P., and Erickson, D.A. 1999. Effect of late season insect infestation on yield, yield components and oil quality of Brassica napus, B. rapa, B. juncea and Sinapis alba in the Pacific Northwest region of the United States. Journal of Agricultural Science, 132: 281–288.Google Scholar
Buntin, G.D. 1999. Damage loss assessment and control of the cabbage seedpod weevil (Coleoptera: Curculionidae) in winter canola using insecticides. Journal of Economic Entomology, 92: 220–227.Google Scholar
Butts, R.A. and Lamb, R.J. 1991. Pest status of lygus bugs (Hemiptera: Miridae) in oilseed Brassica crops. Journal of Economic Entomology, 84: 1591–1596.Google Scholar
Canola Council of Canada. 2017. Canola grower’s manual [online]. Available from www.canolacouncil.org/crop-production/canola-grower’s-manual-contents [accessed 2 July 2017].Google Scholar
Cárcamo, H. 2012. Effect of insect herbivory on the architecture and seed production of canola, Brassica napus L. Journal of Entomological Science, 47: 44–55.Google Scholar
Cárcamo, H. and Brandt, R. 2017. Cabbage seedpod weevil management. In Integrated management of insect pests on canola and other Brassica oilseed crops. Edited by G.V.P. Reddy. Centre for Agriculture and Bioscience International, Boston, Massachusetts, United States of America. Pp. 77–87.Google Scholar
Cárcamo, H.A., Dosdall, L., Dolinski, M., Olfert, O., and Byers, J.R. 2001. The cabbage seedpod weevil (Ceutorhynchus obstrictus [Marsham]) – a review. Journal of the Entomological Society of British Columbia, 98: 201–210.Google Scholar
Cárcamo, H.A., Dunn, R., Dosdall, L.M., and Olfert, O. 2007. Managing cabbage seedpod weevil in canola using a trap crop – a commercial field scale study in western Canada. Crop Protection, 26: 1325–1334.Google Scholar
Cárcamo, H.A., Otani, J., Herle, C., Dolinski, M., Dosdall, L., Mason, P., et al. 2002. Variation of Lygus (Hemiptera: Miridae) species assemblages in canola agroecosystems in relation to ecoregion and crop stage. The Canadian Entomologist, 134: 97–111.Google Scholar
Conover, W.J. and Iman, R.L. 1981. Rank transformations as a bridge between parametric and nonparametric statistics. The American Statistician, 35: 124–129.Google Scholar
Day, W.H. 2006. The effect of rainfall on the abundance of tarnished plant bug nymphs [Lygus lineolaris (Palisot)] in alfalfa fields. Transactions of the American Entomological Society, 132: 445–450.Google Scholar
Dosdall, L. and Cárcamo, H. 2011. The cabbage seedpod weevil in prairie crops: its biology and management. Prairie Soils and Crops, 4: 14–23. Available from www.prairiesoilsandcrops.ca/articles/volume-4-3-screen.pdf [accessed 29 September 2018].Google Scholar
Dosdall, L., Cárcamo, H., Olfert, O., Meers, S., Hartley, S., and Gavloski, J. 2011. Insect invasion of agroecosystems in the western Canadian prairies: case histories, patterns, and implications for ecosystem function. Biological Invasions, 13: 1135–1149.Google Scholar
Dosdall, L.M., Moisey, D., Cárcamo, H., and Dunn, R. 2001. Cabbage seedpod weevil fact sheet. Alberta Agriculture, Food and Rural Development. Agdex, 622: 21.Google Scholar
Ecological Stratification Working Group. 1995. A national ecological framework for Canada. Agriculture and Agri-Food Canada, Research Branch. Centre for Land and Biological Resources Branch and Environment Canada, Ottawa, Ontario, Canada.Google Scholar
Free, J.B., Ferguson, A.W., and Winfield, S. 1983. Effect of various levels of infestation by the seed weevil (Ceutorhynchus assimilis Payk.) on the seed yield of oil-seed rape (Brassica napus L.). Journal of Agricultural Science, 101: 589–596.Google Scholar
Free, J.B. and Williams, I.H. 1978. The responses of the pollen beetle, Meligethes aeneus, and the seed weevil, Ceuthorhynchus assimilis, to oil-seed rape, Brassica napus, and other plants. Journal of Applied Ecology, 15: 761–774.Google Scholar
Gavloski, J., Cárcamo, H., and Dosdall, L. 2011. Insects on canola, mustard, and flax in Canadian grasslands. In Arthropods of Canadian grasslands. Volume 2: inhabitants of a changing landscape. Edited by K. Floate. Biological Survey of Canada, Ottawa, Ontario, Canada. Pp. 181–216.Google Scholar
Gerber, G.H. and Wise, I.L. 1995. Seasonal occurrence and number of generations of Lygus lineolaris and L. borealis (Heteroptera: Miridae) in southern Manitoba. The Canadian Entomologist, 127: 543–559.Google Scholar
Kirkland, K.J. and Johnson, E.N. 2000. Alternative seeding dates (fall and April) affect Brassica napus canola yield and quality. Canadian Journal of Plant Science, 80: 713–719.Google Scholar
Kuznetsova, A., Brockhoff, P.B., and Christensen, RHB. 2016. lmerTest: tests in linear mixed effects models. R package version 2.0–33. Available from http://CRAN.R-project.org/package=lmerTest [accessed 30 May 2018].Google Scholar
Lafond, G. and Harker, K.N. (editors). 2011. Significant insects and disease threats. Prairie Soils and Crops, 4. Available from www.prairiesoilsandcrops.ca/volume4.php [accessed 29 September 2018].Google Scholar
Lamb, R.J. 1989. Entomology of oilseed Brassica crops. Annual Review of Entomology, 34: 211–229.Google Scholar
Lerin, J. 1984. Assessment of yield loss in winter rape due to seedpod weevil (Ceutorhyhchus assimilis Payk.). II. Yield loss in a cage experiment. Agronomy Journal, 4: 147–154.Google Scholar
Otani, J. and Cárcamo, H. 2011. Biology and management of Lygus in canola. Prairie Soils and Crops, 4: 42–53. Available from www.prairiesoilsandcrops.ca/articles/volume-4-6-screen.pdf [accessed 29 September 2018].Google Scholar
R Core Team. 2015. R: a language and environment for statistical computing [online]. R Foundation for Statistical Computing, Vienna, Austria. Available from www.R-project.org [accessed 30 May 2018].Google Scholar
Reddy, GVP. 2017. Integrated management of insect pests on canola and other Brassica oilseed crops. Centre for Agriculture and Bioscience International, Boston, Massachusetts, United States of America.Google Scholar
Stern, V. and Mueller, A. 1968. Techniques of marking insects with micronized fluorescent dust with special emphasis on marking millions of Lygus hesperus for dispersal studies. Journal of Economic Entomology, 5: 1232–1237.Google Scholar
Stone, J.D. and Pedigo, L.P. 1972. Development and economic-injury level of the green cloverworm on soybean in Iowa. Journal of Economic Entomology, 65: 197–201.Google Scholar
Sylven, E. and Svenson, G. 1975. Relationship between density of Ceuthrhynchus assimilis Payk. (Col.) and damage by Dasyneura brassicae Winn. (Cec.) in a cage experiment in summer turnip rape. Statens Vaxtskyddsanst Medd, 16: 53–60.Google Scholar
Systat. 2009. Version 13. Systat Software, San Jose, California, United States of America.Google Scholar
Tulisalo, U., Korpela, S., and Pohto, A. 1976. The yield loss caused by the seedpod weevil Ceuthrhynchus assimilis Payk. (Col., Curculionidae) on summer turnip rape in cage experiments. Annales Entomologia Fennica, 42: 98–102.Google Scholar
Ulmer, B.J. and Dosdall, L.M. 2006. Spring emergence biology of the cabbage seedpod weevil (Coleoptera: Curculionidae). Annals of the Entomological Society of America, 99: 64–69.Google Scholar
Wise, I.L. and Lamb, R.J. 1998. Economic threshold for plant bugs, Lygus spp. (Heteroptera: Miridae), in canola. The Canadian Entomologist, 130: 825–836.Google Scholar