Emergency Use Registrations for Cabbage Maggot in Brassica Crops

Thursday, March 13, 2025

An emergency use registration (EUR) for Cimegra in Head and Stem Brassicas (broccoli, Brussel sprouts, cabbage, cabbage (Chinese, Napa), and cauliflower) for cabbage maggot has been renewed for 2025. Additionally, EURs for Success and Cimegra in Rutabaga approved in 2024 are only able to be used until May 16 and 20 2025, respectively, unless they are renewed for the 2025 season. Application instructions from the EUR labels of each product can be found below.

 

Cimegra

RENEWED 2025

Success Insecticide

LAST USE May 16, 2025

Cimegra

LAST USE May 20, 2025

Active ingredient

Broflanilide

Spinoad

Broflanilide

Registration period

 March 1, 2025-December 31, 2025

May 17, 2024-May 16, 2025

May 21, 2024-May 20, 2025

Group

30

5

30

Crop(s)

Broccoli, Brussels Sprouts, Cabbage, Cabbage (Chinese, Napa), and Cauliflower

Rutabaga

Rutabaga

Insect

Cabbage Maggot

Cabbage Maggot

Cabbage Maggot

Application Instructions

Apply 187.5 – 250 mL/ha1 of Cimegra insecticide post-planting as a drench banded spray, 10 cm on each side of the plant targeting the soil and base of plant to control cabbage maggot.  Use a minimum water volume of 1000 L/ha.

Soil drench at the rate of 273 mL/ha to 546 mL/ha (131 g/ha to 262 g/ha a.i,). For 76 cm (30-inch) plant row spacing apply Success at 6 mL to 12 mL per 300 linear metres (1000 linear feet).

Apply 250 mL/ha1 of Cimegra insecticide post-planting as a drench banded spray, 10 cm on each side of the plant targeting the soil and base of plant to control cabbage maggot.  Use a minimum water volume of 1000 L/ha.

Application Timing

Apply at peak egg laying and before the build-up of heavy pressure.

Begin applications when adult activity is observed in or near the field.

Apply at peak egg laying and before the build-up of heavy pressure.

Application Rate

187.5 - 250 ml/ha1

273 - 546 mL/ha

250 ml/ha1

Applications Per Season

2 (Max 500ml/ha of Cimegra per year)

2 (Max 1.1L/ha of Success per year)

2 (Max 500ml/ha of Cimegra per year)

Application Interval

10 days

4 days

10 days

REI

12 hr

12 hr

12 hr

PHI

1 day

3 days

40 days

1 1.9 mL/100 m of row for 76 cm (30”) row spacing.  For a different row spacing, adjust the product rate using the following equation: (row spacing (cm) / 90) x 2.3 mL = mL per 100 m of row.

To reiterate, Success and Cimegra for cabbage maggot in Rutabaga can only be used until May 16 and 20 2025, respectively, unless the EURs are renewed for the 2025 season. Cimegra has been renewed for use in Head and Stem Brassicas (broccoli, Brussel sprouts, cabbage, cabbage (Chinese, Napa), and cauliflower) for cabbage maggot and can be used for the entirety of the 2025 season (until December 31, 2025). Full product labels can be found at the Pest Management Regulatory Agency (PMRA) Pesticide Label Search website, always read product labels before applying pesticides.