Re-evaluation Decision RVD2018-12, Captan and Its Associated End-use Products

Pest Management Regulatory Agency
10 May 2018
ISSN: 1925-0886 (PDF version)
Catalogue number: H113-9/2018-12E-PDF (PDF version)

This page is a summary of the decision document.

To obtain a full copy of Re-evaluation Decision RVD2018-12, Captan and Its Associated End-use Products, please contact our publications office.

Should you require further information please contact the Pest Management Information Service.

Summary

Table of Contents

Re-evaluation Decision

Under the authority of the Pest Control Products Act, all registered pesticides must be regularly re-evaluated by Health Canada’s Pest Management Regulatory Agency (PMRA) to ensure that they continue to meet current health and environmental safety standards and continue to have value. The re-evaluation considers data and information from pesticide manufacturers, published scientific reports, and other regulatory agencies. The PMRA applies internationally accepted risk assessment methods as well as current risk management approaches and policies.

Captan is a contact and protectant fungicide that has a large use pattern, with commercial products registered for use on field, greenhouse and orchard crops, greenhouse and outdoor ornamentals, and turf (golf courses and sod farms only). All domestic-class products containing captan are co-formulations with the pesticide carbaryl. These products have been cancelled as a result of the carbaryl re-evaluation decision.Footnote 1 Therefore, domestic-class captan products are not considered in the captan re-evaluation decision. Registered products containing captan are listed in Appendix I.

This document (Re-evaluation Decision RVD2018-12, Captan and Its Associated End-use Products) presents the re-evaluation decision for captan. The regulatory approach for the re-evaluation of captan was first presented in Proposed Re-evaluation Decision PRVD2016-13, Captan.Footnote 2 This Re-evaluation DecisionFootnote 3 describes this stage of the PMRA’s regulatory process for the re-evaluation of captan and summarizes the Agency’s decision and the reasons for it. Reference lists for all data used as the basis for the re-evaluation decision are included in RVD2018-12, as well as in PRVD2016-13.

Comments received during the consultation process on health and value were taken into consideration. These comments and new data/information resulted in revisions to some parts of the risk assessments (see Science Evaluation Update of RVD2018-12) and subsequently in some changes to the proposed regulatory decision as described in PRVD2016-13. Appendix II of RVD2018-12 summarizes comments received during the consultation period and provides the PMRA’s responses.

Regulatory Decision for Captan

The PMRA has completed the re-evaluation of captan. Under the authority of the Pest Control Products Act, the PMRA has found the continued registration of products containing captan to be acceptable.

An evaluation of available scientific information found that the following uses of captan products meet current standards for protection of human health or the environment, when used according to the conditions of registration which include required amendments to label directions:

  • Tree fruit (apple, cherry (sweet and sour), apricot, peach, pear, plum, prune, nectarine)
  • Grape
  • Field cucumber, pumpkin, squash, potato, field tomato
  • Soil treatment (pre-plant) for broccoli, Brussels sprouts, cabbage, cauliflower, eggplant, kale, pea, pepper, rutabaga, tomato, turnip
  • Blackberry, blueberry (highbush, lowbush), loganberry, raspberry, strawberry
  • Turf (sod farm, golf course)
  • Ginseng
  • Greenhouse ornamentals (non-cut flowers)
  • Outdoor ornamentals (cut and non-cut flowers)
  • Rhubarb forcing sheds
  • Greenhouse and field soil treatment (pre-plant): seedling or transplant of ornamentals (shrubs, trees, flowers), lawn seedbeds, and vegetables (bean, celery, crucifer, eggplant, pea, pepper, tomato)
  • Commercial slurry seed treatment using liquid products for all currently registered seeds
  • Commercial slurry seed treatment using wettable powder product for beans
  • On-farm slurry seed treatment of bean, chickpea, corn, lentil, lupin, pea, soybean
  • On-farm dry seed treatment of sweet corn
  • Planting of imported seeds (sugar beet, broccoli, cabbage, cauliflower, Brussels sprouts)
  • Flower bulb dip

Certain other uses of captan are being cancelled to address risks of concern to human health or due to inadequate data to assess risk. These uses are as follows:

  • Ornamental stem dip
  • Greenhouse ornamentals (cut flowers)
  • Tobacco seedlings
  • On-farm dry application to bean seeds
  • Treatment of small-seeded vegetable seeds (broccoli, cabbage, Brussels sprouts, cauliflower, sugar beets). Planting of imported seeds still permitted.

Label amendments, as summarized below, as well as listed in Appendix III of RVD2018-12, are required for all technical grade of active ingredients and end-use products containing captan. No additional data are requested at this time.

Risk Mitigation Measures

Registered pesticide product labels include specific instructions for use. Directions include risk reduction measures to protect human and environmental health. These directions must be followed by law. The key risk-reduction measures required, as a result of the re-evaluation of captan, are summarized below. Refer to Appendix III of RVD2018-12 for details.

Human Health

To protect mixer/loader/applicators:

  • Require additional protective equipment and engineering controls when mixing/loading/applying to all crops, as well as during treatment of flower bulbs, and handling treated flower bulbs.
  • Repackage all commercial wettable powders and wettable granules products in water soluble packaging.
  • Limit the amount of captan used per day for mechanically pressurized handguns in greenhouses.
  • Remove the commercial ornamental stem dip use.

To protect workers entering treated sites:

  • Revise or establish restricted-entry intervals (REIs) for some crops.
  • Require restrictions on number and timing of applications allowed per season for some crops.
  • Require label statements to clarify the acceptable greenhouse uses of captan.
  • Remove crop uses with agronomically unfeasible REIs from commercial class products (greenhouse cut flowers and tobacco seedlings).

To protect workers involved in seed treatment:

  • Require additional protective equipment for workers who treat and handle seeds treated with captan.
  • Remove on farm dry application treatment on bean seeds from wettable powder formulation product.
  • Remove vegetable seed treatment from commercial class products. Planting of imported captan-treated vegetable seeds will continue to be permitted.

To protect bystanders from spray drift:

  • Require a statement to promote best management practices to minimize human exposure from spray drift or spray residues resulting from drift.

Environment

To protect the environment, the following mitigations are required:

  • Advisory statements to inform users that captan is toxic to non-target organisms including small mammals and aquatic organisms.
  • Advisory statements to inform users of conditions that may favour runoff and leaching.
  • Spray buffer zones to protect aquatic habitats from drift.
  • A statement advising that transformation products could potentially reach groundwater, particularly in areas where soils are permeable and/or the depth to the water table is shallow.

International Context

Captan is currently acceptable for use in other Organisation for Economic Co-operation and Development (OECD) member countries, including the United States, Australia and European Union Member States. The approval of captan is currently being reviewed for renewal by the European Commission. Captan is also under registration review by the United States Environmental Protection Agency. No decisions have been identified by an OECD member country to prohibit all uses of captan for health or environmental reasons.

Next Steps

To comply with this decision, the required mitigation measures must be implemented on all products labels sold by registrants no later than 24 months after the publication date of RVD2018-12. Appendix I lists the products containing captan that are registered under the authority of the Pest Control Products Act.

Please note that water soluble packaging is required for all captan products registered as wettable powders and wettable granules. Should registrants of these specific products wish to keep their captan registration, an application to register a new product in water soluble packaging is required as soon as possible so that the new formulation will be approved and available for sale no later than 24 months after the publication date of RVD2018-12. Additional label requirements are outlined in Appendix III of RVD2018-12.

Other Information

Any person may file a notice of objectionFootnote 4 regarding this decision within 60 days from the date of publication of this re-evaluation decision. For more information regarding the basis for objecting (which must be based on scientific grounds), please refer to the Pesticides and Pest Management section of Canada.ca (Request a Reconsideration of Decision) or contact the PMRA’s Pest Management Information Service.

Appendix I Registered Captan Products as of 12 January 2018

Registered Captan Products as of 12 January 2018Footnote 5
Registration Number Marketing Class Registrant Product Name Formulation Type Guarantee
4559 Commercial ARYSTA LIFESCIENCE NORTH AMERICA, LLC CAPTAN 50-WP WETTABLE POWDER AGRICULTURAL FUNGICIDE WETTABLE POWDER Captan 50%
9582 Commercial ARYSTA LIFESCIENCE NORTH AMERICA, LLC CAPTAN 80-WP WETTABLE POWDER FUNGICIDE WETTABLE POWDER Captan 80 %
9922 Commercial ARYSTA LIFESCIENCE NORTH AMERICA, LLC CAPTAN 4 FLOWABLE AGRICULTURAL FUNGICIDE SUSPENSION Captan 480 g /L
12028 Commercial NORAC CONCEPTS INC. AGROX FL SUSPENSION Captan 30%
14823 Commercial ADAMA AGRICULTURAL SOLUTIONS CANADA LTD. CAPTAN 50W WETTABLE POWDER FUNGICIDE WETTABLE POWDER Captan 50%
18221 Technical ARYSTA LIFESCIENCE NORTH AMERICA, LLC CAPTAN TECHNICAL FUNGICIDE SOLID Captan 88%
21107 Technical ADAMA AGRICULTURAL SOLUTIONS CANADA LTD. CAPTAN TECHNICAL DUST OR POWDER Captan 95%
22819 Commercial BAYER CROPSCIENCE INC. CAPTAN 400 LIQUID SEED TREATMENT FUNGICIDE SOLUTION Captan 39.1%
23691 Commercial ADAMA AGRICULTURAL SOLUTIONS CANADA LTD. CAPTAN 80 WDG WATER DISPERSIBLE GRANULE WETTABLE GRANULES Captan 80%
24613 Commercial LOVELAND PRODUCTS CANADA INC. SUPRA CAPTAN 80 WDG WETTABLE GRANULES Captan 80%
24684 Commercial NORAC CONCEPTS INC. AGROX FL (NON-DYED) SUSPENSION Captan 30%
26408 Commercial ARYSTA LIFESCIENCE NORTH AMERICA, LLC MAESTRO 80 DF FUNGICIDE WETTABLE GRANULES Captan 80%
26987 Commercial NORAC CONCEPTS INC. CAPTION CT WETTABLE POWDER Captan 18%; Thiophanate-methyl 14%
27904 Technical ARYSTA LIFESCIENCE NORTH AMERICA, LLC CAPTAN TECHNICAL 1 SOLID Captan 95%
29963 Technical SHARDA CROPCHEM LIMITED SHARDA CAPTAN TECHNICAL FUNGICIDE SOLID Captan 95.2%
31949 Commercial SHARDA CROPCHEM LIMITED SHARDA CAPTAN 80 WDG WETTABLE GRANULES Captan 80%
32196 Commercial KAM'S GROWERS SUPPLY INC. KAM'S KAPTAN 80 WDG WETTABLE GRANULES Captan 80%
32300 Commercial SHARDA CROPCHEM LIMITED SHARDA CAPTAN 48 SC SUSPENSION Captan 480 g/L
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