Les nouveaux guerriers des champs (2016)

Les nouveaux guerriers des champs (2016) - Documentary Movies 1:47:31 minutes. Les guerriers des champs. For years, chemical pesticides were considered an efficient method of killing off agricultural pests. However, in the long term, they not only harm the supposed attackers, but also people and the environment. Biological pest control offers an alternative, because who could fight pests more efficiently than their own natural enemies? ecology, environmental conservation