Where can you get smsa weed killer anymore?

SMSA weed killer, which contains the active ingredient monosodium acid methanearsonate, has been phased out in many regions due to environmental and health concerns. If you're looking for alternatives, local garden centers or agricultural supply stores may offer similar herbicides that are still approved for use. Additionally, you can check online retailers or specialty gardening websites for available products. Always ensure to comply with local regulations when purchasing and using herbicides.