Cimegra® Insecticide label temporarily expanded via Emergency Use Registration to help manage cabbage maggot in Broccoli, Brussels sprouts, Cabbage, Cabbage (Chinese, napa), and Cauliflower grown in Ontario, British Columbia, Alberta, Saskatchewan, Quebec, Nova Scotia, New Brunswick, Prince Edward Island, and Newfoundland and Labrador

J. MOSIONDZ, OMAFA, Minor Use Coordinator, Guelph

The Pest Management Regulatory Agency (PMRA) recently announced the approval of Emergency Use Registration (EUR) for Cimegra^® insecticide for management of cabbage maggot on broccoli, Brussels sprouts, cabbage, cabbage (Chinese, napa), and cauliflower in numerous provinces in Canada. This EUR for Cimegra^® insecticide on broccoli, Brussels sprouts, cabbage, cabbage (Chinese, napa), and cauliflower can be used only in Ontario, British Columbia, Alberta, Quebec, Nova Scotia, New Brunswick, Prince Edward Island, and Newfoundland and Labrador from March 1^st, 2025 until December 31st, 2025.

Cimegra^® insecticide is labeled for management of insects on a wide range of crops in Canada. Plans are underway to submit provincial User Requested Minor Use Label Expansion (URMULE) request with the hope for full registration on these crops in future field seasons. These EUR requests were initiated by participating provinces in response to the loss of chlorpyrifos applications in Canada following RVD2020-14 and the subsequent re-evaluation note REV2021-04 which created a lack of sufficient registered protective products to allow for effective protection from cabbage maggot on several crops in Canada, including those in this request. This EUR was led by Saskatchewan in conjunction with other participating province’s provincial Ministries of Agriculture and their local growers’ associations.

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 emergency use label before using Cimegra^®.

Crop(s)	Target	Rate (mL product/ha)	Application Information	Pre-Harvest Interval (PHI) (days)
Broccoli, Brussels Sprouts, Cabbage, Cabbage (Chinese, napa), and Cauliflower	Cabbage maggot (Delia radicum)	187.5 – 250	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 manage cabbage maggot. For best results apply at peak egg laying. Use a minimum water volume of 1000 L/ha. DO NOT apply more than 2 applications per year. Allow a minimum of 10 days between applications. Monitor pest population and reapply if necessary once thresholds are reached. Optimum application timing is based on field scouting. Begin applications when adult activity is observed in or near the field.   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.	1

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.

Environmental Precautions: Toxic to bees. Bees may be exposed through direct spray, spray drift, and residues on leaves, pollen and nectar in flowering crops and weeds. Minimize spray drift to reduce harmful effects on bees in habitats close to the application site. Avoid applications when bees are foraging in the treatment area in ground cover containing blooming weeds. To further minimize exposure to pollinators, refer to the complete guidance “Protecting Pollinators during Pesticide Spraying – Best Management Practices” on the Health Canada website (www.canada.ca/pollinators). Follow crop specific directions for application timing. Toxic to aquatic organisms. Observe spray buffer zones specified under DIRECTIONS FOR USE. To reduce runoff from treated areas into aquatic habitats avoid application to areas with a moderate to steep slope, compacted soil, or clay. Avoid application when heavy rain is forecast. To reduce risk to aquatic organisms from runoff, a vegetative filter strip of at least 10 metres wide between the field edge and adjacent, downhill aquatic habitats must be observed, as specified under DIRECTIONS FOR USE. Toxic to certain beneficial arthropods (which may include predatory and parasitic insects, spiders, and mites). Minimize spray drift to reduce harmful effects on beneficial arthropods in habitats next to the application site such as hedgerows and woodland.

Follow all other precautions, restrictions, and directions for use on the Cimegra^® insecticide label.

For a copy of the emergency use label, Ontario growers may contact Josh Mosiondz, Provincial Minor Use Coordinator, OMAFA, Guelph (226) 971-3407, Hannah Fraser – Horticulture Entomologist, OMAFA, Guelph (905) 708-8014, or Travis Cranmer, Vegetable Crop Specialist, OMAFA, Guelph (519) 835-3382. Non-Ontario growers from participating provinces may contact their local Provincial Minor Use Coordinator or provincial crop specialist(s).  Alternatively, you may contact your regional supply outlet, BASF Canada (Cimegra®) representative, or visit the PMRA label site

Note:  This article is not intended to be an endorsement or recommendation for this particular product, but rather a notice of registration activity