http://www.vocabularyserver.com/gemet/en/http://www.vocabularyserver.com/gemet/en/xml.php?skosTema=4354insecticide http://www.vocabularyserver.com/gemet/en/xml.php?skosTema=4354 biocide BT http://www.vocabularyserver.com/gemet/en/xml.php?skosTema=4354 chemical pest control RT http://www.vocabularyserver.com/gemet/en/xml.php?skosTema=4354 DDT RT