AI Told a Farmer How to Kill Weeds — Then Nearly 25 Acres of Crops Died

Artificial intelligence is changing the way people work, invest, run businesses, and make decisions. But one recent story is a perfect reminder that AI can be helpful without being infallible.

A 67-year-old farmer in China reportedly used an AI chatbot to get advice on weed and pest control for his sesame crop. According to reports, the chatbot recommended a chemical mixture intended to solve the problem.

The farmer followed the advice.

Before applying anything across an entire field or garden, a basic soil testing kit can give you real-world data to compare against whatever advice you’re receiving.

By the next morning, nearly 25 acres of sesame seedlings were reportedly dead.

That is where this story officially enters Funny Money territory.

The AI Solved the Weed Problem… and Then Some

The issue appears to have been simple but costly: one of the recommended herbicides was effective against broadleaf plants.

The problem?

Sesame is also a broadleaf plant.

So instead of simply eliminating the unwanted weeds, the treatment reportedly damaged the actual crop.

In other words, the farmer asked AI:

“How do I get rid of these weeds?”

And AI basically responded:

“How attached are you to the rest of the field?”

That is an expensive misunderstanding.

The Craziest Part

What makes the story even more unbelievable is what reportedly happened next.

After discovering the damage, the farmer went back to the AI chatbot and asked why the crops had died.

Think about that for a second.

The same technology that gave you the instructions that helped destroy the crop is now being asked to investigate what went wrong.

That is like somebody crashing your car and then asking them to perform the accident investigation.

At some point, we have to bring a second opinion into the conversation.

This Is Bigger Than Farming

The funny part of the story is obvious, but the lesson is much bigger.

Businesses everywhere are rushing to use AI.

And they should.

AI can save time. It can improve productivity. It can help with research, analysis, marketing, customer service, scheduling, planning, and hundreds of other tasks.

But there is a massive difference between using AI to help you think and allowing AI to make a high-consequence decision without verification.

If you’re asking AI to help write an email and it gets something wrong, you edit the email.

If you’re asking AI for ideas for a social media post and one idea is bad, you don’t use it.

But if you’re using AI to make a decision involving thousands of dollars of inventory, legal exposure, investments, taxes, equipment, or—as in this case—an entire crop, the stakes are completely different.

Saving Money Can Become Expensive

This is where the real financial lesson comes in.

One of the reasons AI is attractive to businesses is cost savings.

Why pay someone hundreds of dollars for advice if technology can provide an answer immediately?

Sometimes that makes perfect sense.

But sometimes saving a few hundred dollars can create a loss worth thousands.

If you save $500 by skipping professional advice but the resulting mistake costs you $50,000, you did not save $500.

You purchased a $50,000 lesson.

That is Funny Money.

AI Confidence Is Not the Same as Expertise

One of the most dangerous things about AI is how confident an incorrect answer can sound.

AI does not always say:

“I’m not sure.”

Sometimes it gives you an organized, detailed, five-step plan that sounds completely legitimate.

That does not mean the answer is correct.

The smartest way to use AI is to treat it as an assistant.

Use it to research.

Use it to develop questions.

Use it to identify possibilities.

Use it to challenge your thinking.

Then verify high-stakes decisions with credible sources and qualified professionals.

Especially when getting the answer wrong could cost serious money.

The Wealthbuilder Lesson

Technology is supposed to improve decision-making, not eliminate judgment.

The people and businesses that benefit most from AI will not simply be the ones who use it the most.

They will be the ones who understand when to trust it, when to question it, and when to bring in human expertise.

AI can help you move faster.

But moving faster in the wrong direction is still moving in the wrong direction.

So the lesson from today’s story is simple:

Use AI. Use common sense. And when the decision can destroy your crops, your business, or your bank account, get a second opinion.

Because the future may be powered by artificial intelligence.

But common sense still has a job.

And that is today’s Funny Money.

The money is real. The decisions are questionable.