Striped and crucifer flea beetles feed on canola, mustard and related cruciferous plants and weeds. Their damage results in a shot-hole appearance in cotyledon leaves. They also feed on stems under windy or damp conditions, causing wilting or breakage. Remember, the Action Threshold for flea beetles on canola is when 25% of cotyledon leaf area is consumed.
|Crucifer flea beetle and damage|
|Flea beetle damage on cotyledon|
Photo: Mike Dolinski, MikeDolinski@hotmail.com