J. MOSIONDZ, OMAFRA, Minor Use Coordinator, Guelph
The Pest Management Regulatory Agency (PMRA) recently announced the approval of Emergency Use Registrations (EUR) for Cimegra® and Success® insecticides for management of cabbage maggot on rutabaga in numerous provinces in Canada. These EURs for Cimegra® and Success® insecticides on rutabaga can be used only in Ontario, British Columbia, Alberta, Quebec, Nova Scotia, New Brunswick, Prince Edward Island, and Newfoundland and Labrador from May 21st, 2024 until May 20th, 2025 (Cimegra®) and May 17th, 2024 until May 16th, 2025 (Success®).
Cimegra® and Success® insecticides are 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) requests with the hope for full registration 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 rutabaga. This EUR was led by Quebec 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® and Success® insecticides.
Abbreviated instructions for Cimegra® insecticide
| Crop(s) | Target | Rate (mL product/ha) | Application Information | Pre-Harvest Interval (PHI) (days) |
| Rutabaga | Control of cabbage maggot | 250 | 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. 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. | 40 |
NOTE: The use of Cimegra on rutabaga 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. 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.
Abbreviated instructions for Success® insecticide
| Crop(s) | Target | Rate (mL product/ha) | Application Information | Pre-Harvest Interval (PHI) (days) |
| Rutabaga | Suppression of cabbage maggot | 273 – 546 | Optimum application timing is based on field scouting. Begin applications when adult activity is observed in or near the field. apply Success in 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). Do not make applications less than 4 days apart. Apply a maximum of 2 applications. Do not apply more than 1.1 L/ha of Success per year. | 3 |
Environmental Precautions: This product is highly toxic to bees exposed to direct treatment, drift or residues on blooming plants. Do not apply this product or allow it to drift to blooming plants if bees are visiting the treatment area. This product is harmful to parasitoids and predatory mites and slightly harmful to foliage-dwelling predators. Care should be taken when using this product in an integrated pest management program where users are relying on the presence of beneficial arthropods. This product is highly toxic to aquatic invertebrates. Do not contaminate aquatic habitats, such as lakes, rivers, sloughs, ponds, coulees, prairie potholes, creeks, marshes, streams, reservoirs, and wetlands, when cleaning and rinsing spray equipment or containers. This product contains an active ingredient and aromatic petroleum distillates which are toxic to aquatic organisms. This product has potential for run-off. It should not be applied under conditions where run-off is likely to occur. Do not apply immediately after a rainfall or if there is a forecast for rain during or within 48 hours after application.
Follow all other precautions, restrictions, and directions for use on the Cimegra® and Success® insecticide labels.
For a copy of the emergency use label, Ontario growers may contact Josh Mosiondz, Provincial Minor Use Coordinator, OMAFRA, Guelph (226) 971-3407, Hannah Fraser – Horticulture Entomologist, OMAFRA, Guelph (905) 708-8014, or Dennis Van Dyk, Vegetable Crops Specialist, OMAFRA, Guelph (519) 766-5337. 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®) and / or Corteva Agriscience Canada (Success®) representatives, 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
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