Scotts LAWN BUILDER FERTILISER AND WEEDKILLER 2.5kg SKU: 138783 MODEL: SLBWK2.5 Error. try again later You've successfully joined the club $ 39 .99 each Mitre 10 SAvailable at selected stores. Check your local store for details Variants One application does two jobs. Contains a slow release fertilizer that feeds continuously and a weed killer that kills broadleaf weeds. Features and benefits Feeds and weeds at the same time. Active ingredient: Added 2,4-D, Mecoprop and Dicamba are effective against broad-leaf weeds.