Thursday, February 12, 2015

Pesticides: a vicious circle.

The indiscriminate use of pesticides sets off a vicious circle


  • natural predators are destroyed 
  • emergence of pests resistant to chemicals 
  • without predators, pests increase 
  • new, more powerful pesticides are created 
  • more predators are destroyed 
  • emergence of new, more resistant strains 
  • without predators, crop pests increase dramatically 
  • a new pesticide is put on the market
  • ...and the spiral goes on... 



(Thanks to Lorenzo S. for helping me writing this post)

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