Disease, wet summers and certain pesticides have all been blamed for the fall in numbers, but no definitive cause has yet been found.
and pesticide use in the 1940s. The world population reached one billion in 1825, and the population of industrialized nations grew from 500 to 800 million between 1850 and 1900.
or strategies that use nature to accomplish what typically done with pesticides, herbicides and synthetic fertilizer.
the threat of catastrophic disease outbreaks in monocultures, an insatiable demand for nitrogen fertilizer, pesticide-resistant bugs and herbicide-resistant superweeds,
On these fields, the researchers still used herbicides and pesticides, but not the usual way.
As for insect problems, low pesticide use along with habitat provided by cover crops, allowed pest-eating bugs and birds to flourish.
-herbicide-and pesticide-free leafy greens--including basil, arugula, mints and other greens--to the Chicago area once it hits full production.
the ability to raise crops using fewer pesticides; an offer of greater food security; improved nutrition;
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