Tag Archives: Alliums

Scouting for onion thrips

Onion thrips (Thrips tabaci) feed on more than just onions; they also feed on cabbage, leaf lettuce, a variety of other vegetables and fruits, field crops, and many weed species. Thrips are unique from other insects as they have rasping-sucking mouthparts that allow them to scratch the cell walls of leaves, suck up the cell contents including the chlorophyll, and leave behind a shiny, translucent trail on the leaf. A single female can produce Continue reading Scouting for onion thrips

The benefits of removing garlic scapes

The wild ancestors of today’s garlic, Allium sativum, originated thousands of years ago in what is believed to be garlic’s center of origin, Uzbekistan and Turkmenistan. Garlic spread across the globe as it became a popular vegetable, spice, and medicinal plant. The varieties of cultivars we have today were each selected for Continue reading The benefits of removing garlic scapes

66th Annual Muck Vegetable Growers Conference

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

Continue reading 66th Annual Muck Vegetable Growers Conference

Looking for garlic growers who would like their soil of their 2015 garlic fields tested for Stem and Bulb Nematode

If you are a garlic grower and you have seen stem and bulb nematode damage in your garlic crop this year, the OMAFRA/University of Guelph Garlic Nematode Research and Extension Team would like to find out how many nematodes are left in the soil after you harvest. Continue reading Looking for garlic growers who would like their soil of their 2015 garlic fields tested for Stem and Bulb Nematode

Increased Risk of Downy Mildew on Onions

Marion Paibomesai, Vegetable Crops Specialist, OMAFRA
Michael Celetti, Plant Pathology Lead – Horticulture, OMAFRA

In Ontario, this disease is common in July and August and if left uncontrolled, quality and quantity of yield may be reduced. When cool, humid conditions are present particularly when the canopy of the crop is advanced, the risk of downy mildew increases. Foliar symptoms first appear as pale light green patches on infected leaves (Figure 1).

Figure 1. Foliar symptoms first appear as light green patches on the leaves.
Figure 1. Foliar symptoms first appear as light green patches on the leaves.

Continue reading Increased Risk of Downy Mildew on Onions

Growing Great Garlic – Advancing Garlic Production

 

Come learn about garlic production! The 2015 Garlic Field Day hosted by the Garlic Growers Association of Ontario will be held Saturday, June 20th, 2015 at the University of Guelph – Ridgetown Campus in Ridgetown, ON. The agenda will include both in-class sessions and a field tour covering various production and pest management topics including information on bulb and stem nematode, leek moth, cover crops, weed management, and much more.

To view the agenda and register, please go to http://garlicgrowers.on.ca/wordpress2013/field-day/.

Agenda

8:20 am – 9:00 am Registration
9:00 am – 9:10 am Welcome and Introduction – Mark Wales, Chair Garlic Growers Association of Ontario
9:10 am – 9:30 am Stem and Bulb Nematode Biology and Management – Michael Celetti, Plant Pathologist, OMAFRA
9:30 am – 9:50 am What We Don’t Know About Stem and Bulb Nematodes in Garlic – Guy Belair, Nematologist AAFC, Saint-Jean-sur-Richelieu, Quebec
9:50 am – 10:10 am Leek Moth Biology and Management – Marion Paibomesai, Vegetable Specialist OMAFRA or Peter Mason, AAFC Ottawa
10:10 am – 10:40 am Coffee, Networking and Class Room Demonstration:
Stem and Bulb Nematode under Microscope
Other Diseases of Garlic (if samples are available)
Leek Moth Identification and Insect Traps
Clean Seed, Roundels and Bulbils
10:40 am – 11:00 am Growing and Managing Garlic from Clean Seed – Becky Hughes, Researcher, University of Guelph
11:00 am – 11:20 am Growing Garlic from Greenhouse Transplants – John Zandstra, Researcher, University of Guelph
11:20 am – 11:40 am Weed Management in Garlic – Kris McNaughton, Researcher, University of Guelph
11:40 am – 12:00 pm Cover Crops for Nematode Suppression and Building Soil – Anne Verhallen, Soil Management Specialist – Field Crops, OMAFRA
12:00 pm – 1:20 pm Lunch at Pavilion
Kicking the tires of equipment
1:20 pm – 1:30 pm Load Wagons and Travel to Field Trials
1:30 pm – 1:45 pm Nematode Suppressing Cover Crops – Adam Hayes, OMAFRA
1:45 pm – 2:00 pm Hot Water Seed Treatment Trial for Managing Stem and Bulb Nematodes – Michael Celetti, OMAFRA
2:00 pm – 2:15 pm Leek Moth Management with Floating Row Covers Demonstrations – Marion Paibomesai, OMAFRA
2:15 pm – 2:30 pm Clean Seed Trial – Becky Hughes, University of Guelph
2:30 pm – 2:45 pm French Garlic Varieties – Becky Hughes and John Zandstra, University of Guelph
2:45 pm – 3:00 pm Growing Garlic on Raised Beds and Mulches from Greenhouse Garlic Transplants – John Zandstra, University of Guelph
3:00 pm – 3:10 pm Return from Field Trials and Adjourned

Coragen now registered on green onion subgroup via Minor Use Program

Adapted from original article by J. Chaput, OMAFRA, Minor Use Coordinator, Guelph

The Pest Management Regulatory Agency (PMRA) recently announced the approval of several URMULE registrations for Coragen Insecticide for control/suppression of several Lepidopteran pests of  the green onion subgroup in Canada. Coragen Insecticide was already labeled for management of a number of insect pests on a wide variety of crops in Canada. Continue reading Coragen now registered on green onion subgroup via Minor Use Program