The Weeds Are Winning
Herbicide-resistant “superweeds” are spreading across industrial farmland, undermining glyphosate-based weed control and exposing the limits of monoculture and heavy chemical use. Commenters debate whether regulators and companies underestimated predictable evolutionary resistance and how to weigh conflicting expert opinions on glyphosate’s health and environmental risks. Alternatives raised range from robotic laser weeders and biological controls to permaculture, smaller-scale agriculture, and simply treating some fast-growing “weeds” as useful crops or forage.
Herbicide Resistance and Industrial Agriculture
- Commenters agree resistance to glyphosate and other herbicides was evolutionarily inevitable under heavy use.
- Field scientists reportedly warned about overuse for decades; confusion is attributed to laypeople hearing industry spokespeople instead.
- Weeds can evolve resistance to any control method (chemicals, hand-weeding, etc.), with barnyard grass mimicking rice cited as an example.
Monsanto/Roundup and Farmer Incentives
- Some argue Monsanto “won” via market dominance and lobbying; others say simply because Roundup Ready systems are cheaper, easier, and enable no‑till, thus “better” by many farm metrics.
- There is disagreement over whether productivity per area is actually higher and over the risks of dependency on a single supplier.
- A cited rationale for Monsanto’s initial optimism: if it was hard in the lab to engineer resistance, they assumed it would be hard for weeds—commenters counter that mass selection in nature is far more powerful.
Health Risks of Glyphosate
- One camp: regulatory agencies like EPA and EFSA see no meaningful cancer or endocrine risk to consumers at real-world exposures, even if glyphosate is a carcinogenic hazard at some doses.
- Another camp: points to IARC’s “probably carcinogenic” classification and scattered endocrine/gut microbiome concerns, and personally avoids glyphosate when affordable.
- Clarification: IARC evaluates hazard, not real-world risk; its Group 2 categories also contain everyday exposures (e.g., hot beverages).
- Small animal studies suggesting endocrine effects are criticized for unrealistically high doses and weak statistical power.
- A claim that gluten intolerance is “actually a glyphosate issue” appears without supporting evidence in the thread (unclear).
Alternatives to Chemical Herbicides
- Tactics mentioned: strong vinegar, boiling water, salt, manual weeding, child labor/human labor, goats.
- Vinegar is reported effective but non-selective, corrosive to equipment, and very pungent; some argue it’s “still poison” ecologically.
- Salt is effective but persistent and non-specific; boiling water is praised as safer, especially on paths.
- Some prefer manual/permaculture approaches and embrace certain “weeds” for aesthetics and biodiversity.
Robots, AI, and Weed Control
- Multiple comments highlight commercial laser-weeding robots and GPS-guided tractors already in use.
- Many expect broad-acre spraying will shift toward robotic, vision-based, targeted removal.
- Others note biological controls (engineered insects/microbes) have worse failure modes and a fraught history.
- Concern is raised that weeds will eventually adapt even to AI recognition (mimicry of crops).
Ecology, Weeds, and Food Systems
- Weeds are reframed as potentially useful: fast-growing, deep-rooted species moving nutrients and sometimes edible (e.g., amaranths).
- Thread notes that some “worst weeds” are essentially traditional food crops we now spend heavily to eradicate.
- Several comments criticize endless monoculture and “poison cycles,” advocating more diverse, resilient systems (permaculture, food forests), even if less profitable.