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Western Forum on Pest Management 2017 Western Committee on Crop

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Western Forum on Pest Management 2017 Western Committee on Crop Western Forum on Pest Management 2017 Western Committee on Crop Pests Meeting Date: Thursday October 26, 2017 Location: Fairmont Hotel West Ballroom, Winnipeg MB Sponsors Include: Alberta Canola, Manitoba Wheat and Barley, SaskPulse, Manitoba Canola Growers, Western Grains, BASF, Manitoba Corn Growers, 20/20 Seed Labs Inc., Canola Council of Canada, DOW AgroSciences, and Syngenta Chair: John Gavloski Secretary: Meghan Vankosky 1. Meeting called to order by the Chair at 8:13 am followed by introduction of the Chair and Secretary. Attendees welcomed to the meeting, Secretary counted 25 attendees at the start of the meeting, all attendees present introduced themselves before the coffee break (9:50 am). 2. Chair outlined the agenda for the meeting and noted two additions: a. Lindsey Goudis, BASF to give insecticide update (Section 8.3) b. Ana Dal Molin to give update on development of app for insect, weed, and disease identification (Section 9.4, Special Reports) -No other additions to the agenda Scott Hartley motioned for the agenda to be accepted as revised. Motion seconded by Keith Gabert. Motion passed. 3. Minutes from 2016 meeting in Saskatoon SK briefly summarized. No comments/concerns were raised concerning the minutes. Tyler Wist motioned to accept the 2016 minutes. Motion seconded by Jennifer Otani. Motion passed. 4. No new business arose from the 2016 meeting. 5. Resolutions: One outstanding resolution from 2016 was noted: The need to write to the provinces regarding attendance of provincial scientists at WFPM. This resolution has been passed to the Resolutions Committee of WFPM. Scott Hartley and Glenda Clezy volunteered to serve on the 2017 Resolutions Committee. 6. Provincial Insect Pest Summaries 2017 (8:30 am) 6.1. British Columbia report presented by Wim van Herk on behalf of Susanna Acheampong and Tracy Hueppelsheuser; report appended Questions: John Gavloski: Is true armyworm novel in BC? Answer: Yes. Tyler Wist: Are there records of wind trajectories that would have blown in armyworm? Answer: Not sure, but the infestation was consistent all along the western coast, suggesting a continuous infestation and spread without wind; Jennifer Otani noted that armyworm was a serious outbreak pest in Oregon in 2017 and probably expanded northward due to high populations and favourable conditions. 6.2. Alberta report prepared by Scott Meers and presented by the Chair as Scott Meers was unable to attend the meeting; report appended. Questions: Keith Gabert: Cabbage seedpod weevil populations were lower in 2016, but with the continued range expansion, are there weevils now moving into MB? Answer: not formally surveyed in 2017 (but note that specimens were found within a few km of the MB/SK border in 2017); Hector Carcamo spoke about his work for cabbage seedpod weevil scouting and validation of economic thresholds: results suggest sweep samples should be taken at the edge and interior (50 m) of the field, and that samples taken at opposite corners of the field give a good estimate for weevils; 25-40 weevils/sweep suggested as economic threshold based on sweeps; if only sampling the edges, use 40 weevils/sweep as the threshold Hector Carcamo: With potential evidence of pea leaf weevil in the Peace region, was there any damage noted? Answer: Some damage characteristic to Sitona weevils has been observed on perennial legumes (Jennifer Otani, Meghan Vankosky) 6.3. Saskatchewan report prepared and delivered by Scott Hartley; report appended. This will likely be Scott’s final WCCP meeting as he is now managing the pest diagnostic lab. The job search for a new provincial entomologist was initiated on October 26, 2017. Questions: Chris Dufault: Was damage caused by the mystery ‘red bug’ economic? Answer: Yes, there was a lot of spraying associated with this pest, even though there was no ID and no registered products; concern was high because the damage caused by the bug was exacerbated by the drought conditions in most areas where it was recorded. All: What is the ID of the mystery bug? Answer: Peritrechus convivus is most likely. Adult specimens have been sent to Ottawa for confirmation. Meghan Vankosky: commented that she observed many red turnip bugs in canola field margins on weeds, especially cleavers. Scott Hartley: commented that he spent a lot of time in 2017 on boards to reassess neonicotinoid chemistries. A key concern is effect of these products in bodies of water; more research has been requested on this topic and this year with the drought made this work difficult in SK. Chris Dufault: What is happening with the registration for Matador? Answer: the proposed deregistration of Matador and similar chemistries caught us off guard in 2017; this product is widely registered, will set back work done by PMRA, and is not currently an issue in US or Europe (like other products); want to revoke all MRLs (due to effects on the product for plant use as fodder for animals). Hector Carcamo: What promoted the Matador review? Answer from Ted Labun: all products are due for reevaluation on a 15 year cycle; the product was up for review on that schedule, but there was no indication before the review started that there were significant concerns surrounding the product. Nevin Rosaasen: have people from other ministries been asked for reevaluation inputs? Answer from John Gavloski: yes, people from MB have been involved heavily; Jennifer Otani commented that someone will likely speak on the reevaluation at Agronomy Update in Red Deer January 2018; Marcie Schultz (PMRA rep) stated that industry needs to provide input into reevaluation. 6.4. Manitoba report prepared and presented by John Gavloski; report appended. -John Gavloski included an “issues” section in his report -John also noted that there are plans in place to do more monitoring for potentially emerging pests in 2018 (PLW, CSPW etc.), based on survey results in SK. Questions: Scott Hartley: What is going on with diamondback moths? Answer/Discussion: -Lori-Ann Kaminski suggested that that we might see more generations in dry years; in dry years there would be less abiotic mortality associated with rain events (that wash larvae off of plants) and low insect pathogens populations -John Gavloski: populations of diamondback moth really didn’t agree with information provided by DBM traps, is there an issue with the pheromone lures? Answer: Population densities were low in fields in 2016 despite high trap catches, suggesting some disconnect and that regional vs. field forecasting is an issue that probably contributes to inconsistent observations. Look for larvae in all fields. -Angela Brackenreed: are populations blowing in later than the traps were out? Answer: (John Gavloski) counts were variable in the traps during the trapping period, suggested that maybe a second generation blew into Canada this year. -Keith Gabert commented that low population levels in mid-May weren’t a red flag, so there wasn’t any suggestion to scout early on which may have contributed to issues. -Scott Hartley: seemed that parasitism lagged behind a bit this year, because often the second and third generations crash. Chris Dufault: Potassium deficiency has been associated with faster population growth of soybean aphids; has there been any assessment of the potassium in the foliage? Answer: this year soybean aphids were so widespread that any effects could not be teased out. Lori-Ann Kaminski: thanks to John for providing acreage values in the report, this is help put some information into perspective. Glenda Clezy: were spider mites in soybean a problem in 2017? Answer: Yes. Spider mites like dry conditions, so there was some spraying for spider mites in 2017. Spider mite populations were greatest on field edges (with targeted spraying with dimethoate). 6.5. Reporters for 2018 will be as follows: British Columbia: Susanna Acheampong Saskatchewan: to be announced Manitoba: John Gavloski Alberta: Scott Meers Thank you to these volunteers. 7. Provincial Research Reports 7.1. British Columbia report prepared and delivered by Wim van Herk. Three research projects were described, including two projects concerning wireworms and one project regarding pesticide residue trials. Wim noted that there is more research happening in BC, but there were few responses from agricultural researchers to his update request. Questions: John Gavloski: Are there concerns with by-catch in terms of carabid beetles using pitfall traps for adult Elateridae? Answer: Christine Norohona tries to exclude larger carabid beetles using mesh; some difference in phenology between Elateridae and Carabidae; less trap depletion if traps are further apart. John Gavloski: What insect pests in hops are the pesticide trials being done for? Answer: likely mites (John Gavloski noted that aphids and leafhoppers are also hops pests). 7.2. Alberta research report compiled and delivered by Hector Carcamo. Seventeen research projects were summarized by Hector, with help from Jennifer Otani, Amanda Jorgensen and Shelby Dufton. Questions: none 7.3. Saskatchewan research report compiled by Tyler Wist. Tyler and Meghan Vankosky delivered the report with some PowerPoint slides to provide visuals. The research report summarized 13 projects. Questions: Keith Gabert: Aster yellows affecting wheat? Answer: Doesn’t seem to have a large impact recently, haven’t seen a peak outbreak year since 2012. Jennifer Otani: If wheat is infested with aster yellows, does the wheat still flower? Answer: Yes. 7.4. Manitoba research report compiled and delivered by John Gavloski (after lunch). Ten report submissions were received from the University of Manitoba, and focused on flea beetles (report given by Tharshi Nagalingam), wheat midge, aphids, and pests of livestock. There were no questions. 7.5. Reporters for 2018 will be as follows: British Columbia: Wim van Herk Saskatchewan: Tyler Wist Manitoba: Alejandro Costamagna Alberta: Haley Catton Thank you to these volunteers. 8. Agency Reports (questions were asked but are not noted in the minutes) 8.1.
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