| Chemical pesticide (1) |  |
| Industrial pesticide (1) | |
| Pesticide (49) | |
| Pesticide exposure (1) | |
| Pesticide free (4) | |
| Chemical pesticide (1) | |
| Industrial pesticide (1) | |
| Pesticide (49) | |
| Pesticide exposure (1) | |
| Pesticide free (4) | |
a practice long forgotten with the invention of chemical pesticides. But now, two European companies are considering how to provide weaver ant nests to farmers,
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