ARCHIVED - Re-evaluation Note REV2011-01, Discontinuation of Endosulfan
8 February 2011
ISSN: 1925-0630 (print version)
ISSN: 1925-0649 (PDF version)
Catalogue number: H113-5/2011-1E (print version)
Catalogue number: H113-5/2011-1E-PDF (PDF version)
Summary
This document describes the terms of the phase-out of endosulfan insecticide from now until December 31, 2016, when the registrations of all endosulfan pesticide products in Canada will expire. Use will be limited to those crops for which growers need time to develop alternative pest control tools. Applicators must also observe new measures to protect the health of workers and aquatic environments. It is the goal of registrants and the Pest Management Regulatory Agency (PMRA) to ensure that endosulfan supplies are exhausted through use by the end of 2016.
1. Background
Endosulfan is an organochlorine insecticide and acaracide used to control a broad range of insect and arthropod pests on a wide variety of food, feed and ornamental crops. The PMRA conducted a preliminary re-evaluation of endosulfan (REV2007-13) and required specific interim risk mitigation measures (REV2009-09). In spring 2010, the PMRA concluded that use could no longer be supported and registrants are phasing-out all uses of endosulfan both in Canada and elsewhere. In REV2010-16, the PMRA requested use-related information to consider in planning the phase-out schedule. Comments received in response to REV2010-16 and to previous consultations helped identify which uses require a longer term phase out to allow for development of alternative pest control tools.
2. Discontinuation of Endosulfan Registrations
Makhteshim-Agan of North America and the PMRA have agreed on a schedule of deadlines, conditions and administrative actions to further protect workers and aquatic environments and reduce usage of endosulfan during its phase-out over the next few years, leading to the exhaustion of endosulfan stocks by December 31, 2016.
These changes will be communicated on revised product labels. Labels of registered pesticide products have specific instructions for use including measures to protect human and environmental health. These directions must be followed by law. The interim risk mitigation measures that were required in 2009 (REV2009-09) will be integrated with more protective instructions on some crops, to mitigate risks posed by use that may continue until 2016.
Appendix I lists requirements for label amendments including the last dates of permitted use on each crop and new mitigation measures to protect human health:
- Additional protective equipment and precautions to protect mixers/loaders/applicators.
- Longer restricted-entry interval to protect those entering treated sites.
- Reduced numbers of applications/season and limits to the amount handled/person/day.
- Prohibition from allowing livestock to graze or feed on treated crops or crop refuse.
Requirements for label amendments specified in REV2009-09 remain unless they are covered by the new mitigation measures outlined in Appendix I. In particular, advisory statements and Directions For Use will be revised as specified in REV2009-09 regarding:
- maximum rates of application per hectare and maximum application/ha/season;
- advisory statements regarding environmental hazard; and
- instructions to reduce spray drift, runoff and potential surface water contamination.
3. Implementation of the Phase-out
Registrants and the PMRA plan to complete label amendments during the winter of 2010-2011, so that existing stock of the wettable powder (WP) formulation may be overstickered with the phase-out label that includes a table of last dates of use. New production of Thionex EC (emulsifiable concentrate) and Thionex 50WP-WSP (in water-soluble bags) will bear the phase-out labels when it is distributed for sale to users. No Thionex WP may be imported unless it is packaged in water-soluble bags.
After December 31, 2011, endosulfan pesticide may only be sold if the label includes last dates of use and other restrictions to the use pattern that are required for the duration of the phase-out period. It is expected that stocks of Thionex 50WP will have been exhausted through sale and use by mid 2012 and will have been replaced on the market by Thionex 50WP-WSP.
Registrants will cease production and sale of endosulfan pesticide products by December 31, 2014. Sale of endosulfan pesticide products by others is not permitted after December 31, 2015. Use of endosulfan products is not permitted after December 31, 2016.
Appendix I - Packaging and Label Amendments for Products Containing Endosulfan
Canadian end-use product labels are to be amended to include the following risk mitigation measures, in addition to those that were required by REV2009-09.
1. A Note to User box on primary panel showing the last permitted date of use for each crop/site:
Note to User
Last date of use is December 31, 2010 on the following crops:
- All product formulations: alfalfa, clover, field corn, sunflower, spinach, succulent beans, succulent peas;
WP product formulation: above crops and field tomatoes, sweet corn, dry beans and dry peas.
Last date of use is December 31, 2012 on the following crops/sites:
- apple, bean (dry), broccoli, Brussels sprouts, cabbage, cauliflower, corn (sweet), grape, pea (dry), pear, rutabaga, turnip, greenhouse cucumber, greenhouse tomato, bait station outside food processing plants.
Last date of use is December 31, 2016 on the following crops:
- apricot, celery, cherry, cucumber, eggplant, lettuce (head), melon, ornamentals (outdoors), ornamentals (greenhouse), peach, pepper, plum, potato, pumpkin, squash, strawberry, sugar beet, tomato.
It is unlawful to use this product on any crop or site after December 31, 2016.
This product is not to be used in and around homes or other residential areas such as parks, school grounds and playing fields. It is not for use by homeowners or other uncertified users.
2. Existing stock of the wettable powder formulation will be overstickered. Moving forward, wettable powder formulation is to be packaged in water soluble bags. Instructions for safe handling of water soluble bags are to be included and should be proposed by the registrant.
3. Additional PRECAUTION STATEMENTS for the protection of human health:
4. Directions (as appropriate, for the EC, WP-WSB and WP label formulations) to applicators regarding Engineering Control and Personal Protective Equipment:
- Mixing and Loading Liquids
- Mixing and Loading Wettable Powder
- Mixing and Loading Wettable Powder in Water Soluble Bags
- Application using handheld equipment
- Application using airblast equipment
- Application using groundboom equipment
5. Under DIRECTIONS FOR USE, for each crop on the label, include the following instructions regarding the maximum number of applications, minimum application interval, restricted-entry interval (REI), and pre-harvest interval (PHI) for endosulfan.
Crop | Activity | Restricted Entry Interval | Pre-Harvest Interval | Maximum Number of Applications |
---|---|---|---|---|
Emulsifiable Concentrate Product | ||||
Table 1 footnotes
|
||||
Celery, | All activities | 4 days | 14 days | 1 application |
Lettuce (head) | All activities | 4 days | 14 days | 2 applications; minimum 7 day interval |
Cucumber, melon, | All activities | 4 days | 9 days | 3 applications; minimum 7 day interval |
Pumpkin, squash | All activities | 7 days | 9 days | 3 applications; minimum 7 day interval |
Eggplant, pepper, tomato | All activities | 4 days | 27 days | 2 applications; minimum 7 day interval |
Strawberry | Scouting, hand weeding, irrigation, mulching | 4 days | 7 days | 2 applications; minimum 7 day interval |
Other activities | 7 days | |||
Potatoes | All activities | 5 days | 5 daysTable 1 footnote 1 | 4 applications/season; minimum 7 day interval. For use every other year only. |
Sugar beet | Irrigation, scouting | 10 days | 45 days | 1 application |
Other activities | 2 days | |||
Ornamentals (potted, cut flower) | All activities | 2 days | N/A | 2 applications, minimum 7 day interval |
Ornamental trees (including Christmas trees) | Handline irrigation | 3 days | N/A | 2 applications, minimum 7 day interval |
Other activities | 2 days | |||
Greenhouse ornamentals | All activities | 2 days | N/A | 1 application per crop cycle |
Greenhouse cucumber, tomato | All activities | 2 days | 2 days | 1 application per crop cycle |
Bean (dry only) | All activities | 2 days | 2 days | 2 applications, minimum 7 day interval |
Broccoli, Brussels sprouts, cabbage, cauliflower | All activities | 4 days | 7 days | 2 applications, minimum 7 day interval |
Corn (sweet) | Hand detasseling | 17 days | 50 days | 1 application |
Other activities | 10 days | |||
Peas (canning, seed) | All activities | 2 days | 7 days | 2 applications, minimum 7 day interval |
Rutabaga, turnip | All activities | 2 days | 45 days | 2 applications, minimum 7 day interval |
Wettable Powder (WP and WP-WSP) Product | ||||
Apricot, peach, cherry, plum | Thinning | 20 days | 18 days | 1 application by airblast, 3 applications by handheld equipment |
Other activities | 7 days | |||
Celery | All activities | 4 days | 17 days | 1 application |
Lettuce | All activities | 4 days | 17 days | 2 applications; minimum 7 day interval |
Cucumber, melon, | All activities | 4 days | 13 days | 2 applications; minimum 7 day interval |
Pumpkin, squash | Hand weeding, pruning, hand thinning | 12 days | 13 days | 2 applications; minimum 7 day interval |
Other activities | 10 days | |||
Eggplant, pepper | All activities | 9 days | 27 days | 2 applications; minimum 7 day interval |
Strawberry | Scouting, hand weeding, irrigation, mulching | 7 days | 12 days | 2 applications; minimum 7 day interval |
Other activities | 12 days | |||
Potatoes | All activities | 5 days | 5 days1 | 2 applications/season; minimum 7 day interval. For use every other year only. |
Ornamentals (potted, cut flower) | All activities | 4 days | N/A | 2 applications, minimum 7 day interval |
Ornamental trees (including Christmas trees) | Handline irrigation | 17 days | N/A | 2 applications, minimum 7 day interval |
Other activities | 4 days | |||
Greenhouse ornamentals | All activities | 2 days | N/A | 1 application per crop cycle |
Greenhouse cucumber, tomato | All activities | 2 days | 2 days | 1 application per crop cycle |
Broccoli, brussel sprouts, cabbage, cauliflower | All activities | 9 days | 9 days | 2 applications, minimum 7 day interval |
Grape | All activities | 2 days | 30 days | 2 applications, minimum 7 day interval |
Apple, pear | All activities | 4 days | 15 days | 2 applications, minimum 7 day interval |
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