The Truth About DIY Herbicides: Why You Should Avoid Dangerous Mixtures

Understanding the Risks of Homemade Herbicides

There’s a viral post going around claiming you can replace Roundup by mixing vinegar, water, salt, detergent — and even bleach — and that it’s “0% toxic.” Just a heads-up: that’s not accurate, and the bleach advice is actually dangerous.

The Dangers of Common Ingredients

✔ Bleach + vinegar/detergent can create toxic chlorine gas — this is a real chemical hazard.

✔ Salt kills soil, not just weeds. It builds up and can damage surrounding plants for months or years.

✔ Vinegar and detergents aren’t “non-toxic” either — they can irritate skin, harm pets, and pollute waterways.

✔ These mixes only burn the leaves; the roots survive, so perennial weeds grow straight back.

Exploring Safer Alternatives

If you want safer alternatives, registered low-toxicity “organic” herbicides (pelargonic acid, pine oil, clove oil, etc.) are much more effective and tested for safety. Even better: mulching, hand-weeding, flame/steam weeding, and good ground cover.

Natural doesn’t always mean harmless — and bleach definitely doesn’t belong in any garden spray. 🌿

Debunking the Myth

MYTH: “Vinegar + salt + detergent + bleach = safe, non-toxic Roundup alternative.”

FACT:

• Bleach + vinegar/detergent can release toxic chlorine gas

• Salt sterilises soil and spreads to nearby plants

• Vinegar & detergents are not harmless to pets, soil, or waterways

• Mix only burns leaves — weeds regrow from roots

  
  

Safer Options for Weed Control

Consider these safer options:

• Mulching: This method not only suppresses weeds but also retains moisture in the soil.

• Hand-Weeding: While it may be labor-intensive, it ensures that you remove the entire weed, roots included.

• Steam/Flame Weeding: These methods kill weeds without chemicals, making them environmentally friendly.

• APVMA-Approved Low-Toxicity Herbicides: Products that are registered and tested for safety can provide effective weed control without the risks associated with homemade mixtures.

  
  

Conclusion

In conclusion, while the idea of creating a homemade herbicide may seem appealing, the risks far outweigh the benefits. It’s essential to understand that not all natural ingredients are safe. I encourage you to explore safer alternatives for effective weed management. Remember, maintaining a healthy garden is about making informed choices that protect both your plants and the environment.

For more information on safe gardening practices, feel free to reach out or explore additional resources.