What are natural pesticides?

DW
2024.02.07

Since the dawn of agriculture, farmers have struggled to protect crops from pests. 

In ancient Persia (current-day Iran), the natural insecticide Pyrethrum, made from dried Chrysanthemum flowers, was utilized to paralyze insects that attack edible plants — and later to kill hair lice. 

But by the dawn of the 20th century, large-scale mono agriculture was relying on chemicals containing arsenic, sulphur or copper to deter pests from fruit, cereals and vegetables.

All those chemical pesticides have had a profound impact on ecosystems and human health. It is why some countries have banned them, and the EU has long threatened — but failed — to outlaw glyphosate, a controversial weedkiller that threatens biodiversity and has been linked to the development of cancer. But what's the alternative?

Read more here.