Animal Toxicity

• Pyrethrum is highly toxic to a wide variety of insects and some species of fish. The pesticide works by attacking the animal's nerves to paralyze, then kill them.
  
  

Human Toxicity

• If humans inhale pyrethrum, they may experience asthma attacks, dermatitis, sneezing, headaches, tremors and convulsions.
  
  

Uses

• Because it dissolves quickly for minimal environmental impact and affects a wide variety of insects, pyrethrum is used on many types of crops, near feed storage areas and on some farm animals.
  
  

Origins

• Pyrethrum is made from certain types of chrysanthemum flowers.
  
  

Unintended Consequences

• Unfortunately, pyrethrum can affect bees and other beneficial insects.