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The Pesticides Regulatory Directorate (PRD), formerly known as the Pest Management Regulatory Agency, has approved a minor use label expansion for Cimegra insecticide for management of cabbage maggot on CG 5-13 Brassica head and stem vegetables: broccoli, Brussels sprouts, cabbage, cabbage (Chinese, napa), and cauliflower in Canada. Cimegra insecticide was already labelled for management of insects on a wide range of crops in Canada. This minor use proposal was submitted by the Saskatchewan Ministry of Agriculture as a result of minor use priorities established by growers and extension personnel across Canada, and in response to several years of Emergency Use Registration requests.
The following is provided as an abbreviated, general outline only. Users should be making insect management decisions within a robust integrated insect management program and should consult the complete label before using Cimegra insecticide.
Crop(s) | Target | Rate (mL product/ha) | Application Information | Pre-Harvest Interval (PHI) (days) |
CG 5-13 (Broccoli, Brussels Sprouts, Cabbage, Cabbage (Chinese, napa), and Cauliflower) | Control of Cabbage maggot | 250*
* - 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.
| Apply 250 mL/ha* 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. For best results apply at peak egg laying. Use a minimum water volume of 1000 L/ha. Allow a minimum of 10 days between applications. Monitor pest population and reapply if necessary once thresholds are reached. DO NOT apply more than 2 applications per year. DO NOT apply more than 50 g active ingredient per hectare per year total. This includes all application types (i.e., seed treatment, soil and foliar). Toxic to bees. DO NOT apply during the crop blooming period.
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NOTE: The use of Cimegra on broccoli, Brussels sprouts, cabbage, cabbage (Chinese, napa), and cauliflower is intended only for domestic markets due to a lack of export MRLs being established in other trading partner countries. If exported, detection of residues on these crops could lead to rejection or destruction by the appropriate officials.
Follow all other precautions, restrictions, and directions for use on the Cimegra insecticide label.
For a copy of the new minor use label contact your local crops specialist, local regional supply outlet, or visit the PRD label site http://www.hc-sc.gc.ca/cps-spc/pest/registrant-titulaire/tools-outils/label-etiq-eng.php
Source: Josh Mosiondz, minor use coordinator, OMAFA April 13, 2026
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