Nature and EnvironmentGermany: Who let the bugs out?To view this video please enable JavaScript, and consider upgrading to a web browser that supports HTML5 videoNature and EnvironmentSonja Schock06/22/2018June 22, 2018Biologist Peter Katz has been breeding insects for decades to fight against plant pests. And although convinced of the value of his tiny army, he doesn't believe feeding the world is possible without pesticides. https://p.dw.com/p/30491Advertisement