Weekly Update 2025
Released May 23, 2025 ( Week 3 )
Welcome to Week 3 for the 2025 growing season! This week includes:• Weather synopsis• Flea beetles• Cutworms• Cereal leaf beetle• Pea leaf weevil• Grasshopper diversity and scouting• Diamondback moth• Bertha armyworm• Tick...
Weather synopsis ( Week 3 )
Growing season temperatures cooled off slightly between May 12 and May 18, bringing the 7-day average temperature close to the long-term climate normals average for this time of the month (Fig. 1). The weekly average temperature for May 12 – May...
Flea beetles ( Week 3 )
Flea Beetles (Chrysomelidae: Phyllotreta species) – Be on the lookout for flea beetle damage resulting from feeding on canola cotyledons but also on the stem. Two species, Phyllotreta striolata and P....
Cutworms ( Week 3 )
Cutworm scouting spans April to late June across the Canadian prairies! Scout fields that are “slow” to emerge, are missing rows, include wilting or yellowing plants, have bare patches, or appear highly attractive to birds – these are areas...
Cereal leaf beetle ( Week 3 )
The cereal leaf beetle (Chrysomelidae: Oulema melanopus) has a broad host range. Wheat is the preferred host, but adults and larvae also feed on leaf tissue of oats, barley, corn, rye, triticale, reed canarygrass, ryegrass, fescue, wild oats,...
