Canola-Cabbage maggot

Delia brassicae

Pest description and crop damage Maggot larvae feed on roots but seldom cause damage.

Management-chemical control

  • bifenthrin (Capture 2EC, several other labels) at 0.033 to 0.04 lb ai/a. PHI 35 days. May be applied at bloom. Do not exceed 0.08 lb ai/a per season. Do not apply less than 14 days apart. Through coverage is essential to achieve control.
  • zeta-cypermethrin (Mustang Maxx, several others) at 0.025 lb ai/a. PHI 7 days. REI 12 hr. Do not apply more than 24 oz or 0.15 lb ai per acre per season. Do not make applications less than 7 days apart.