Toxicants & Fumigants

Definitions–See Glossary

Toxicant–substance used to poison a problem animal, typically through ingestion.

Fumigant–gas used to poison a nuisance animal as it breathes.

General Use Pesticides (GUP) may be purchased over-the-counter.

Restricted Use Pesticided (RUP) require a pesticide applicator’s license to purchase and use.

Secondary poisoning-Injury to an organism that ate the animal that was poisoned originally.

Facts about Pesticides

• No one can guarantee where a poisoned animal will die.
• No pesticide can be called “SAFE”. You can only use pesticides more safely or less safely.
• Most negative incidents with toxicants and fumigants occur because the applicator failed to follow the instructions on the label.

Active Ingredients

Fumigants

1. Phosphine Gas

• Phostoxin–Pestcon Systems & Degesch America
  • Fumigation Management Plan (FMP) is required when using this product.
    • FMP Sample 1
    • FMP Sample 2
    • FMP Sample for burrowers

2. Charcoal-Potassium Nitrate

Toxicants

Anticoagulants

First Generation	Active Ingredient	Feeding
	Warfarin	Mult-feed
	Chlorophacinone	Multi-feed
	Diphacinone	Multi-feed
Second Generation
	Bordifacoum	Single Feed
	Bromadiolone	Single Feed
	Difenacoum	Single Feed
	Difethialone	Single Feed

Non-Anticoagulants

Active Ingredient	Feeding	Mode of Action
Bromethalin		Interferes with the animal’s nervous system
Cholecalciferol		Interferes with calicum
Zinc Phosphide

Zinc Phosphide

Resources

Bait Station Use— Univ. of Nebraska-Lincoln

Resources on Anticoagulant Toxicants–New Zealand Govt. Publication

Toxicant Risks—Univ. of Arizona