The 67th Annual Muck Vegetable Growers Conference will be held March 28-29 at the Bradford and District Memorial Community located at 125 Simcoe St., Bradford, ON. The conference is free and registration starts at 8:30. No pre-registration is required. For more details please see: http://www.uoguelph.ca/muckcrop/muckconference.html
The 66th Annual Muck Vegetable Growers Conference will be held April 12-13 at the Bradford and District Memorial Community located at 125 Simcoe St., Bradford, ON. The conference is free and registration starts at 8:30. For more details please see: http://www.uoguelph.ca/muckcrop/muckconference.html
Dennis Van Dyk, OMAFRA, Guelph; Manju Chandran and Mary Ruth McDonald, University of Guelph, Muck Crops Research Station.
For the first time in Ontario, feeding damage caused by flea beetle larvae has been confirmed in a commercial carrot field. The damage is characterized by irregularly shaped cavities along the length of the taproot (Figure 1). A trail of smaller feeding sites can sometimes be seen travelling down the length of the carrot (Figure 2).
The 37th International Carrot Conference will be held September 15 – 17, 2015 at the Nottawasaga Inn, Alliston, Ontario. For more information, go to http://www.uoguelph.ca/muckcrop/carrotconf15/. Early Bird Registration has been extended to June 30th.
By: Kristen Obeid, OMAFRA Weed Management Program Lead – Horticulture and Clarence Swanton, University of Guelph
Carrot growers in particular are struggling with resistant pigweed in Ontario fields, a problem that was studied extensively in 2011 and 2012. As far back as 1997, resistance to group 5 herbicides (prometryne) was noted. Then in 1998, resistance to group 2 (rimsulfuron) herbicides was noted. Resistance to group 7 (linuron) herbicides appeared in 1999. There are some weed populations with multiple resistance (i.e. resistance to both group 5 and group 7 herbicides or maybe even to three different herbicide groups).
Different pigweed species are showing resistance to herbicides, including:
- Redroot pigweed (Amaranthus retroflexus, L.)
- Green pigweed (Amaranthus powellii, S. Watson)
- Smooth pigweed (Amaranthus hybridus, L.)
- Common waterhemp (Amaranthus tuberculatus, syn, rudis)
J. Chaput, OMAF/MRA, Minor Use Coordinator, Guelph
The Pest Management Regulatory Agency (PMRA) recently announced the approval of an URMULE registration for Prowl H2O Herbicide for control of labeled weeds on carrots in Canada. Prowl H2O Herbicide was already labeled for management of weeds on corn, soybeans, snap beans, adzuki beans, dry bulb and green onions, leeks and ornamentals in Canada. Continue reading Prowl H2O Herbicide label expanded via Minor Use Program to control labeled weeds on carrots
The 63rd Annual Muck Vegetable Growers Conference will be held April 9th and 10th, 2014 at Bradford and District Memorial Community Centre located at 125 Simcoe St., Bradford, ON. Registration opens at 8:30 am. For details, please see http://www.uoguelph.ca/muckcrop/muckconference.html.