Manitoba Insect & Disease Update – Issue 6: June 22, 2016

The Manitoba Insect and Disease Update is now posted at:

Some highlights from the update:


  • Cutworm and flea beetle levels and damage continues to decline.
  • Alfalfa weevil is being noted at high levels in some alfalfa fields
  • Barley thrips are quite noticeable in some barley fields in Eastern Manitoba.
  • Low levels of English gain aphid and oat-birdcherry aphid are being found in some cereal fields.
  • Pea aphid is showing up in some pea crops.

Plant Pathogens:

  • Cereal rust diseases continue to develop and spread.
  • Bacterial blight symptoms in winter wheat and oats were also reported.
  • Root rot pathogens continue to cause problems in soybean fields.

Submitted by: John Gavloski, Entomologist & Pratisara Bajracharya, Field Crop Pathologist, Manitoba Agriculture

Manitoba Agriculture website:
Manitoba Agriculture on Twitter: @MBGovAg
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