2,4-D Dimethylamine Salt (Weed-Rhap A4D and others) Advantages: Broadleaf floating,emersed,marginal, and bank weeds. Disadvantages: Fishing restrictions and may be toxic to fish. Restrictions on potable water. 2 4, -D Dimethylamine Dimethylamine Salt (Weed-Rhap A4D and others) Advantages: Broadleaf floating Broadleaf floating, emersed emersed, marginal marginal, and bank weeds. Disadvantages: Fishing restrictions and may be toxic Fishing restrictions and may be toxic to fish. R i i bl Restrictions on potable water