Alliums – Page 13 – ONvegetables

by July 6, 2012 1

Update on Stemphylium Leaf Blight of Onions in Ontario

Marion Paibomesai and Michael Celetti, OMAFRA and Michael Tesfaendrias, University of Guelph-Muck Crop Research Station Adapted from HortMatters article Vol. 12,… Continue Reading Update on Stemphylium Leaf Blight of Onions in Ontario

by July 5, 2012 0

Alliums Brassica Vegetables Carrot Insects Leafy Vegetables Pest Management

Degree days for root, bulb and leafy vegetable pests – 4 July 2012

Thresholds for second generation emergence of onion maggot flies have been reached in the London area and is expected to… Continue Reading Degree days for root, bulb and leafy vegetable pests – 4 July 2012

by June 29, 2012 0

Alliums Fungicides

Purple blotch of onions

Purple blotch has been seen on onion transplants in the Holland Marsh. This disease is often found on leaves damaged… Continue Reading Purple blotch of onions

by June 29, 2012 0

Alliums Brassica Vegetables Carrot Insects Leafy Vegetables Pest Management

Degree days for root, bulb and leafy vegetable pests – 27 June 2012

Thresholds for second generation emergence of onion maggot flies and cabbage maggot flies have been reached in the Windsor area.… Continue Reading Degree days for root, bulb and leafy vegetable pests – 27 June 2012

by June 21, 2012 0

Alliums Brassica Vegetables Carrot Insects Leafy Vegetables Pest Management

Degree days for root, bulb and leafy vegetable pests – 19 June 2012

Thresholds for second generation emergence of onion maggot flies and cabbage maggot flies should be reached in 5-7 days in… Continue Reading Degree days for root, bulb and leafy vegetable pests – 19 June 2012

by June 13, 2012 0

Alliums Insects Pest Management

Leek Moth Update – 12 June 2012

The leek moth, Acrolepiopsis assectella, is an invasive species of European origin that attacks Allium spp., including garlic, onions and leeks. Since… Continue Reading Leek Moth Update – 12 June 2012

by June 13, 2012 0

Alliums Brassica Vegetables Carrot Insects Leafy Vegetables Pest Management

Degree days for root, bulb and leafy vegetable pests – 12 June 2012

Thresholds for first generation emergence of onion maggot flies and emergence of tarnished plant bug have been reached for all… Continue Reading Degree days for root, bulb and leafy vegetable pests – 12 June 2012

by June 6, 2012 0

Alliums Brassica Vegetables Carrot Insects Leafy Vegetables Pest Management

Degree days for root, bulb and leafy vegetable pests – 5 June 2012

Thresholds for onion maggot fly emergence have been reached for all areas. First generation adults of cabbage maggot are expected in all areas. In… Continue Reading Degree days for root, bulb and leafy vegetable pests – 5 June 2012

by May 31, 2012 0

Alliums Insecticides Pest Management

Delegate WG for Management of Thrips and Leek Moth on Bulb Vegetables in Canada

J. Chaput, OMAFRA, Minor Use Coordinator, Guelph The Pest Management Regulatory Agency (PMRA) recently announced the approval of a minor… Continue Reading Delegate WG for Management of Thrips and Leek Moth on Bulb Vegetables in Canada

by May 24, 2012 0

Alliums Brassica Vegetables Carrot Insects Leafy Vegetables Pest Management

Degree days for root, bulb and leafy vegetable pests – 22 May 2012

Thresholds for onion maggot fly emergence have been reached for all areas degree days have been calculated for (Bradford/Holland Marsh,… Continue Reading Degree days for root, bulb and leafy vegetable pests – 22 May 2012