Information for commercial vegetable production in Ontario
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
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
Adapted from The Grower article “Strategies to control resistant pigweed in muck soils” from April 2012 Ontario carrot growers in… Continue Reading Potential management strategies to control resistant pigweed in muck soils
J. Chaput, OMAFRA, Minor Use Coordinator, Guelph The Pest Management Regulatory Agency (PMRA) recently approved a minor use label expansion… Continue Reading Minor Use Label Expansion Granted for Chloropicrin 100 Liquid Soil Fumigant and Pic Plus Fumigant for Control of Labeled Pests on Root and Tuber Vegetables in Canada
For the Wellington area, according to the degree day accumulations expect 3rd generation adult emergence of onion maggot in 5-6… Continue Reading Degree days for root, bulb and leafy vegetable pests – 30 August 2011
Degree day accumulations indicate: emergence of the 3rd generation of onion maggot in the Sarnia area and the peak emergence… Continue Reading Degree days for root, bulb and leafy vegetable pests – 22 August 2011
In Sarnia, the 3rd generation of cabbage maggot are expected to emerge in next day or so. In the London… Continue Reading Degree days for root, bulb and leafy vegetable pests – 15 August 2011
In Sarnia, the 3rd generation of cabbage maggot are expected to emerge in 7-8 days. In the London area, the… Continue Reading Degree days for root, bulb and leafy vegetable pests – 8 August 2011
In the Windsor area, degree days have accumulated past the threshold indicating emergence of the 3rd generation of cabbage maggot.… Continue Reading Degree days for root, bulb and leafy vegetable pests – 31 July 2011
The Wellington area has reached the degree day thresholds for the emergence of 2nd generation onion maggot and cabbage maggot. In… Continue Reading Degree days for root, bulb and leafy vegetable pests – 25 July 2011