Attack on Diamondback Moth

November 1, 2013

Improved Integrated Crop Management with Beneficial Insects

Principal investigator: Lloyd Dosdall, University of Alberta, Edmonton, AB

Co-principal investigator: Owen Olfert, Agriculture and Agri-Food Canada, Saskatoon, SK, Julie Soroka, AAFC, Saskatoon, SK, Neil Harker, AAFC, Lacombe, AB

Collaborators: Mohammed Bahar, Diana Bekkaoui, Jim Broatch, Cathy Coutu, Dwayne Hegedus, Sadia Munir, Patty Reid

rPoducers are encouraged to carefully monitor pest and natural enemy populations to make sure insecticide applications are necessary. That’s because, as this study shows, parasitism of diamondback moth larvae and pupae can be relatively high early in the season.

Lloyd Dosdall, entomologist with the University of Alberta, focused this 2010, 2011 and 2012 study on the parasitoids that help keep diamondback moth populations regulated. Parasitoids of diamondback moth are poorly studied in canola, even though the parasitoid Diadegma insulare is known to sometimes completely terminate diamondback moth outbreaks in Western Canada. Two other parasitoid species – Microplitis plutellae and Diadromus subtilicornis – also attack diamondback moth and sometimes inflict high levels of parasitism. The aim of this project was to develop forecasting strategies to predict abundance levels and distributions for these three parasitoids.

Open the PDF to read the entire research summary from the 2013 Science Issue of Canola Digest

You can also read the 2013 Science Issue of Canola Digest as a flipbook

Visit the Canola Research Hub website to search the database of grower funded research

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