[en] a synthetic auxin (a plant growth regulator) used to reduce the pre-harvest drop of apples and pears, for fruitlet thinning and for striking hard and softwood cuttings (http://sitem.herts.ac.uk/aeru/ppdb/en/Reports/1729.htm)
Rit
[is]
Reglugerð framkvæmdastjórnarinnar (ESB) nr. 656/2011 frá 7. júlí 2011 um framkvæmd reglugerðar Evrópuþingsins og ráðsins (EB) nr. 1185/2009 um hagskýrslur um varnarefni, að því er varðar skilgreiningar og skrá yfir virk efni
[en] Commission Regulation (EU) No 656/2011 of 7 July 2011 implementing Regulation (EC) No 1185/2009 of the European Parliament and of the Council concerning statistics on pesticides, as regards definitions and list of active substances