Three application of diafenthiuron at normal (600 g ai ha-1) and double the normal dose (1200 g ai ha-1) were made at 21 days interval during 2 season field trials.
Links:
[1] http://admin.indiaenvironmentportal.org.in/feature-article/persistence-diafenthiuron-cardamom
[2] http://admin.indiaenvironmentportal.org.in/category/author/d-rajabaskar
[3] http://admin.indiaenvironmentportal.org.in/category/author/regupathy-0
[4] http://admin.indiaenvironmentportal.org.in/category/journal/pesticide-research-journal
[5] http://admin.indiaenvironmentportal.org.in/category/thesaurus/agriculture
[6] http://admin.indiaenvironmentportal.org.in/category/thesaurus/plantation-crops
[7] http://admin.indiaenvironmentportal.org.in/category/thesaurus/pesticide-residues
[8] http://admin.indiaenvironmentportal.org.in/category/thesaurus/pest-control
[9] http://admin.indiaenvironmentportal.org.in/category/thesaurus/pesticide-use
[10] http://admin.indiaenvironmentportal.org.in/category/thesaurus/pesticides-and-toxins