| 英文摘要 |
This project aims to enhance the management of environmental rodenticides, reduce their ecological and non-target species impact, and prevent misuse in agricultural fields. Two multilateral communication platform meetings were held, reaching a consensus on strengthening management, promoting physical control methods, and professionalizing rodent control. However, the Environmental Chemicals Association raised concerns about certain policies. For public education, promotional posters and brochures were created, and four community outreach events were conducted to educate participants on distinguishing between agricultural and environmental rodenticides and strategies for home rodent control.
The project included interviews with 50 farmers in southern Taiwan, revealing a preference for granular and powdered rodenticides, with 40% adding their own bait and over 80% unaware of secondary poisoning risks. Surveys of 52 agricultural supply stores showed that most sold environmental rodenticides, with only one of the 18 products registered as an agricultural pesticide. Some retailers expressed concern that stricter rodenticide regulations might lead to the use of more hazardous pesticides like Terbufos. Bait station trials conducted at 10 locations showed that exposed bait had the highest non-target species consumption rates, involving cats, dogs, pigeons, and masked palm civets. Large bait stations significantly reduced non-target species consumption while improving rodent feeding efficiency. However, the issue of African snails consuming bait remains unresolved.
Recommendations for future actions include:
1. Strengthen public education on the "Three No's" approach to rodent prevention (no inviting rodents, no allowing them to stay, and no providing food). Highlight the ecological harm caused by rodenticides to encourage more cautious use and prioritize alternative methods.
2. Promote the use of bait stations to inform the public about this tool, which can prevent non-target species from accidental ingestion. Gradually cultivate a habit of using bait stations to facilitate the implementation of future policies.
3. Test the rodent control efficacy of first-generation anticoagulant rodenticides (coumatetralyl). If the results are within an acceptable range, evaluate and develop differentiated management approaches for first- and second-generation anticoagulant rodenticides.
4. Conduct long-term monitoring of toxicity effects on non-target organisms to investigate the transmission pathways of rodenticides. Compare monitoring results before and after changes in management strategies to identify any differences.
5. Undertake in-depth research to determine whether various rodent species exhibit resistance to current rodenticide ingredients.
6. Encourage the development or introduction of alternative rodenticides and other physical rodent control/prevention devices.
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