How exactly did Agent Orange kill plants?

Agent Orange was a mixture of two herbicides, 2,4 D and 2, 4, 5 T. Both are artificial plant growth regulators. They are applied in higher concentrate than the natural plant growth hormones in plants. They kill plants by grossly over-stimulating and distorting the natural plant growth processes, that function in balance in a normally growing plant. read more

Agent oragne is a 1:1 mixture of the synthetic auxins 2,4-Dichlorophenoxyacetic acid (2,4-D) and 2,4,5-Trichlorophenoxyacetic acid (2,4,5-T). Further, agent orange degrades to produce dioxins which are quite toxic to most living organisms. read more

Agent Orange was created by mixing equal quantities of two agricultural herbicides commonly used to kill weeds: 2,4-D and 2,4,5-T. Present in the 2,4,5-T as an impurity was 2,3,7,8-tetrachlorodibenzo-p-dioxin (usually abbreviated to TCDD), a dioxin contaminant that is highly toxic to some animals. read more