Major classes of agricultural rodenticides
- Anticoagulant rodenticides (Bromadiolone 0.005% bait): Second-generation anticoagulant that blocks vitamin K recycling in liver cells, causing painless internal hemorrhaging within 3 to 5 days without triggering bait shyness.
- Acute rodenticides (Zinc Phosphide): Rapid-acting inorganic poison reacting with stomach acid to release toxic phosphine gas; used for quick knockdown of high burrow populations but requires pre-baiting to prevent bait aversion.
- Wax block formulations: Weather-resistant paraffin blocks designed for burrow placement in moist or rain-prone fields.
Systematic community baiting methodology
Single-farmer baiting often fails because rodents migrate from adjacent unmanaged fields. Successful control requires coordinated village-level baiting conducted before sowing or when burrows are easily identified. Pre-bait with unpoisoned grain for two days before introducing active poison baits.
Critical safety precautions and antidote
Rodenticide baits must always be placed inside tamper-resistant bait stations or deep within live burrows to prevent accidental poisoning of livestock, dogs, birds, and children. The specific antidote for anticoagulant toxicity is Vitamin K1 administered under veterinary or medical supervision.
Official source
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Directorate of Plant Protection, Quarantine & Storage ↗Related on KisanPe
Common questions
How does Bromadiolone rodenticide work?
Bromadiolone stops blood coagulation by inhibiting vitamin K epoxide reductase, leading to mortal hemorrhaging over several days.
Why is pre-baiting required with Zinc Phosphide?
Pre-baiting with untreated grain accustoms rodents to feeding at the site, preventing them from developing bait shyness from sub-lethal ingestion.
What is the medical antidote for anticoagulant rodenticide poisoning?
Vitamin K1 (phytomenadione) is the specific physiological antidote for anticoagulant rodenticide exposure.
General guidance, not personal advice. For your farm, ask your local Krishi Vigyan Kendra or agriculture officer.
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