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Incident Report

Subform I: General Information

1. Report Type.

New incident report

Incident Report Number: 2022-5972

2. Registrant Information.

Registrant Reference Number: M-437702-02-1

Registrant Name (Full Legal Name no abbreviations): Bayer CropScience Inc.

Address: Suite 200, 160 Quarry Park Boulevard SE

City: CALGARY

Prov / State: AB

Country: Canada

Postal Code: T2C 3G3

3. Select the appropriate subform(s) for the incident.

Scientific Study

4. Date registrant was first informed of the incident.

5. Location of incident.

6. Date incident was first observed.

Product Description

7. a) Provide the active ingredient and, if available, the registration number and product name (include all tank mixes). If the product is not registered provide a submission number.

PMRA Registration No. 17293      PMRA Submission No.       EPA Registration No.

Product Name: NORTRON FLOWABLE HERBICIDE

• Active Ingredient(s)
  • ETHOFUMESATE

7. b) Type of formulation.

Application Information

8. Product was applied?

Unknown

9. Application Rate.

10. Site pesticide was applied to (select all that apply).

11. Provide any additional information regarding application (how it was applied, amount applied, the size of the area treated etc).

To be determined by Registrant

12. In your opinion, was the product used according to the label instructions?

Unknown

Subform VII: Scientific Study

1. Study Reference

Title Toxicity of the Formulation Ethofumesate SC 500A G (Ethofumesate 500 g/L) to the Aquatic Macrophyte, Myriophyllum spicatum (Amended Final Report)

Date 22-MAY-13

2. a) Is an extension needed to translate the document?

No

3. Type of incident identified in the study

Increased health or environmental risk

4. Describe the incident identified in the study (e.g. study demonstrates an increased risk to non-Hodgkin's Lymphoma after exposure to pesticide X)

The lower EC50 value for the rooted aquatic macrophyte was compared to the expected environmental concentration (EEC) for ethofumesate. Therefore, the RQ value does not exceed the Level of Concern (1.0) for vascular aquatic plants for any of the registered uses.

5. a) Was the study discontinued before completion?

No

5. b) Provide the reason for discontinuation

6. If the study is ongoing, what is the expected completion date?

For Registrant use only

7. Provide supplemental information here

The rooted aquatic macrophyte study with ethofumesate met reportability criteria for Canada due to lower endpoints as compared to the aquatic macrophyte (Lemna gibba). The lower endpoints do not affect the risk assessment for ethofumesate as the level of concern was low for adverse effects to aquatic plants.