policymakers in India swear by the insecticide ddt to contain sand fly, the kala-azar vector. There are alternatives to using chemicals, a group of researchers has found by studying 50 villages in five kala-azar endemic districts in Bihar. The disease is most prevalent in the state. Critics say the study is not foolproof.
Various theories exist on sand fly
Links:
[1] http://admin.indiaenvironmentportal.org.in/news/non-chemical-use-contain-kala-azar-vector
[2] http://admin.indiaenvironmentportal.org.in/category/author/jacquelyn-hayes-0
[3] http://admin.indiaenvironmentportal.org.in/category/newspaper/down-earth
[4] http://admin.indiaenvironmentportal.org.in/category/thesaurus/weeds
[5] http://admin.indiaenvironmentportal.org.in/category/thesaurus/vector-control
[6] http://admin.indiaenvironmentportal.org.in/category/thesaurus/bio-vector-control
[7] http://admin.indiaenvironmentportal.org.in/category/thesaurus/ddt
[8] http://admin.indiaenvironmentportal.org.in/category/thesaurus/vector-borne-diseases
[9] http://admin.indiaenvironmentportal.org.in/category/thesaurus/kala-azar
[10] http://admin.indiaenvironmentportal.org.in/category/thesaurus/research
[11] http://admin.indiaenvironmentportal.org.in/category/thesaurus/india
[12] http://admin.indiaenvironmentportal.org.in/category/thesaurus/bihar