Previous posts

Click to review these earlier 2020 Posts (organized alphabetically):

    • 2019-2020 Risk and forecast maps

    • Alfalfa weevil (Wk08)
    • Aster leafhopper (Wk05)

    • Beetle data please! (Wk03)

    • Crop protection guides (Wk02)
    • Cutworms (Wk02)

    • Flea beetles (Wk02)

    • Pea leaf weevil - predicted development (Wk09)
    • Prairie provincial insect webpages (Wk02)

    • Scouting charts - canola and flax (Wk02)

    • Ticks and Lyme Disease (Wk06)

    • Wind trajectories (Wk09)

Previous posts

Click to review these earlier 2020 Posts (organized alphabetically):

    • 2019-2020 Risk and forecast maps

    • Alfalfa weevil (Wk08)
    • Aster leafhopper (Wk05)

    • Beetle data please! (Wk03)

    • Crop protection guides (Wk02)
    • Cutworms (Wk02)

    • Flea beetles (Wk02)

    • Prairie provincial insect pest pages (Wk02)

    • Scouting charts - canola and flax (Wk02)

    • Ticks and Lyme Disease (Wk06)

Previous posts

Click to review these earlier 2020 Posts:

    • 2019-2020 Risk and forecast maps

    • Aster leafhopper (Wk05)

    • Beetle data please! (Wk03)

    • Crop protection guides (Wk02)
    • Cutworms (Wk02)

    • Flea beetles (Wk02)

    • Prairie provincial insect pest pages (Wk02)

    • Scouting charts - canola and flax (Wk02)

    • Ticks and Lyme Disease (Wk06)

Previous posts

Click to review these earlier 2020 Posts:

• 2019-2020 Risk and forecast maps

• Aster leafhopper (Wk05)

• Beetle data please! (Wk03)

• Crop protection guides (Wk02)

• Cutworms (Wk02)

• Flea beetles (Wk02)

• Prairie provincial insect pest pages (Wk02)

• Scouting charts - canola and flax (Wk02)

• Ticks and Lyme Disease (Wk06)

Previous posts

Click to review these earlier 2020 Posts:

• 2019-2020 Risk and forecast maps

• Aster leafhopper (Wk05)

• Beetle data please! (Wk03)

• Crop protection guides (Wk02)

• Cutworms (Wk02)

• Flea beetles (Wk02)

• Prairie provincial insect pest pages (Wk02)

• Scouting charts - canola and flax (Wk02)

Previous posts

Click to review these earlier 2020 Posts:

• 2019-2020 Risk and forecast maps

• Bookmark prairie provincial insect pest pages (Wk02)

• Crop protection guides (Wk02)

• Cutworms (Wk02)

• Flea beetles (Wk02)

• Seeking beetle data please! (Wk03)

• Scouting charts - canola and flax (Wk02)

Cutworms

Cutworms (Noctuidae) – Several species of cutworms can be present in fields and scouting should begin before seeding and continue in to June on the Canadian prairies!  Access tools including the Cutworm Field Guide, photos and descriptions for glassy, darksided, pale western, dingy and some of the natural enemies that attack cutworms plus scouting tips to help identify cutworms in field crops.  

Figure 1. Dingy cutworms (photo: J. Gavloski, Manitoba Agriculture and Resource Development).

Flea beetles

Flea Beetles (Chrysomelidae: Phyllotreta species) – The Action Threshold for flea beetles on canola is 25% of cotyledon leaf area consumed.  Watch for "shot-hole" feeding in seedling canola but also watch the growing point and stems of seedlings which are particularly vulnerable to flea beetle feeding.  Link here to review photos and scouting tips for flea beetles in canola (Wk03).

Figure 1.  Flea beetle feeding on leaves canola seedling resulting in "shot-hole" damage plus girdling of stem (left) plus dorsal view of striped flea beetle (right).

Spring threshing surprise - Seeking beetle data please!

Reminder - Large numbers of adult Amara ground beetles are being reported this spring (Fig. 1) in canola fields left unharvested last fall. These are non-pest beetles.  Adults feed on seeds, particularly those of cruciferous plants.  Larvae eat pest insects (e.g., grasshopper eggs).

Figure 1. An aggregation of Amara littoralis near Pickardville, AB. This was one of several outbreaks of
carabids observed in central Alberta in the autumn of 2010.  Photo B. Berry.

Read the full post and find a request for beetles posted in Wk03!

Bookmark prairie provincial insect pest pages

Find insect pest monitoring fact sheets and information from your prairie provincial experts posted in Wk02.

Scouting Charts - Canola and Flax

Click here to access TWO generalized insect pest scouting charts (with hyperlinks to the insect guide) intended to aid in-field scouting on the Canadian prairies.

Crop protection guides

Crop Protection Guides – Manitoba, Saskatchewan and Alberta guides were included in Wk01. Find PDF copies or access their homepages.

Previous posts

Click to review these earlier 2020 Posts:

2019-2020 Risk and forecast maps

Bookmark prairie provincial insect pest pages (Wk02)

Crop protection guides (Wk02)

Previous posts

Click to review these earlier 2020 Posts:

2019-2020 Risk and forecast maps

Previous Posts (August 22, 2019; Wk 20)

Click to review these earlier 2019 Posts:

2019 Risk and forecast maps - Week 2

Alfalfa weevil - Week 11

Bertha armyworm (predicted development) - Week 12
Bertha armyworm (monitoring) - Week 19

Cabbage seedpod weevil - Week 11
Cereal aphid manager APP - Week 12
Cereal leaf beetle - Week 9
Crop protection guides - Week 6
Cutworms - Week 5

Diamondback moth - Week 15

Field events - Week 10
Field heroes - Week 6
Flea beetles - Week 5

Grasshoppers - Week 19

Insect scouting chart for Canola - Week 5
Insect scouting chart for Flax - Week 5

Lygus in canola - Week 18

Monarch migration - Week 13

Painted lady butterfly - Week 8
Pea leaf weevil - Week 10
Prairie Crop Disease Monitoring Network - Week 5
Preparing grains for market - Week 15

Ticks and Lyme disease - Week 4
Timely IOTW to review - Week 13

Weather Radar - Week 6
Wheat midge - Week 17
Wildfires - Week 8

Wind trajectories - Review Page for list of PDFs for Weeks 1-12

Previous Posts (August 15, 2019; Wk 19)

Click to review these earlier 2019 Posts:

2019 Risk and forecast maps - Week 2

Alfalfa weevil - Week 11

Bertha armyworm (predicted development) - Week 12

Cabbage seedpod weevil - Week 11
Cereal aphid manager APP - Week 12
Cereal leaf beetle - Week 9
Crop protection guides - Week 6
Cutworms - Week 5

Diamondback moth - Week 15

Field events - Week 10
Field heroes - Week 6
Flea beetles - Week 5

Grasshoppers - Week 10

Insect scouting chart for Canola - Week 5
Insect scouting chart for Flax - Week 5

Lygus in canola - Week 18

Monarch migration - Week 13

Painted lady butterfly - Week 8
Pea leaf weevil - Week 10
Prairie Crop Disease Monitoring Network - Week 11
Preparing grains for market - Week 15

Ticks and Lyme disease - Week 4
Timely IOTW to review - Week 13

Weather Radar - Week 6
Wheat midge - Week 17
Wildfires - Week 8

Wind trajectories - Review Page for list of PDFs for Weeks 1-12

Previous Posts (August 8, 2019; Wk 18)

Click to review these earlier 2019 Posts:

2019 Risk and forecast maps - Week 2

Alfalfa weevil - Week 11

Bertha armyworm (predicted development) - Week 12

Cabbage seedpod weevil - Week 11
Cereal aphid manager APP - Week 12
Cereal leaf beetle - Week 9
Crop protection guides - Week 6
Cutworms - Week 5

Diamondback moth - Week 15

Field events - Week 10
Field heroes - Week 6
Flea beetles - Week 5

Grasshoppers - Week 10

Insect scouting chart for Canola - Week 5
Insect scouting chart for Flax - Week 5

Monarch migration - Week 13

Painted lady butterfly - Week 8
Pea leaf weevil - Week 10
Prairie Crop Disease Monitoring Network - Week 11
Preparing grains for market - Week 15

Ticks and Lyme disease - Week 4
Timely IOTW to review - Week 13

Weather Radar - Week 6
Wheat midge - Week 17
Wildfires - Week 8

Wind trajectories - Review Page for list of PDFs for Weeks 1-12

Previous Posts (August 1, 2019; Wk 17)

Click to review these earlier 2019 Posts:

2019 Risk and forecast maps - Week 2

Alfalfa weevil - Week 11

Bertha armyworm (predicted development) - Week 12

Cabbage seedpod weevil - Week 11
Cereal aphid manager APP - Week 12
Cereal leaf beetle - Week 9
Crop protection guides - Week 6
Cutworms - Week 5

Diamondback moth - Week 15

Field heroes - Week 6
Flea beetles - Week 5

Grasshoppers - Week 10

Insect scouting chart for Canola - Week 5
Insect scouting chart for Flax - Week 5

Monarch migration - Week 13

Painted lady butterfly - Week 8
Pea leaf weevil - Week 10
Prairie Crop Disease Monitoring Network - Week 11
Preparing grains for market - Week 15

Ticks and Lyme disease - Week 4
Timely IOTW to review - Week 13

Weather Radar - Week 6
Wildfires - Week 8

Wind trajectories - Review Page for list of PDFs for Weeks 1-12

Previous Posts (July 25, 2019; Wk 16)

Click to review these earlier 2019 Posts:

2019 Risk and forecast maps - Week 2

Alfalfa weevil - Week 11

Bertha armyworm (predicted development) - Week 12

Cabbage seedpod weevil - Week 11
Cereal aphid manager APP - Week 12
Cereal leaf beetle - Week 9
Crop protection guides - Week 6
Cutworms - Week 5

Diamondback moth - Week 15

Field heroes - Week 6
Flea beetles - Week 5

Grasshoppers - Week 10

Insect scouting chart for Canola - Week 5
Insect scouting chart for Flax - Week 5

Monarch migration - Week 13

Painted lady butterfly - Week 8
Pea leaf weevil - Week 10
Prairie Crop Disease Monitoring Network - Week 11
Preparing grains for market - Week 15

Ticks and Lyme disease - Week 4
Timely IOTW to review - Week 13

Weather Radar - Week 6
Wildfires - Week 8

Wind trajectories - Review Page for list of PDFs for Weeks 1-12

Previous Posts (July 18, 2019; Wk 15)

Click to review these earlier 2019 Posts:

2019 Risk and forecast maps - Week 2

Alfalfa weevil - Week 11

Bertha armyworm (predicted development) - Week 12

Cabbage seedpod weevil - Week 11
Cereal aphid manager APP - Week 12
Cereal leaf beetle - Week 9
Crop protection guides - Week 6
Cutworms - Week 5

Field heroes - Week 6
Flea beetles - Week 5

Grasshoppers - Week 10

Insect scouting chart for Canola - Week 5
Insect scouting chart for Flax - Week 5

Monarch migration - Week 13

Painted lady butterfly - Week 8
Pea leaf weevil - Week 10
Prairie Crop Disease Monitoring Network - Week 11

Ticks and Lyme disease - Week 4
Timely IOTW to review - Week 13

Weather Radar - Week 6
Wildfires - Week 8

Wind trajectories - Review Page for list of PDFs for Weeks 1-12