The vegetable accounts for the largest use of insecticides.
Links:
[1] http://admin.indiaenvironmentportal.org.in/news/iihr-finds-biological-method-control-pest-attack-brinjal-crop
[2] http://admin.indiaenvironmentportal.org.in/category/newspaper/hindu-chennai
[3] http://admin.indiaenvironmentportal.org.in/category/thesaurus/vegetables
[4] http://admin.indiaenvironmentportal.org.in/category/thesaurus/insecticide
[5] http://admin.indiaenvironmentportal.org.in/category/thesaurus/brinjal
[6] http://admin.indiaenvironmentportal.org.in/category/thesaurus/crop-pests
[7] http://admin.indiaenvironmentportal.org.in/category/thesaurus/agricultural-research