Merle from Kalispell, Mt writes
GrazonNext HL Herbicide is not labeled to control baby's breath (Gypsophila paniculata), specifically. However, the label does list annual common chickweed, which is in the same family (Caryophyllaceae). This Extension article has more details about mechanical control and suggestions for chemical control, which does include 2,4-D as a recommendation. You could also use a non-selective herbicide like Gly-Pho-Sel Pro to spot treat this plant.
Answer last updated on: 06/05/2018