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There are a few areas of public statement where speakers are left entirely free of accountability and legal limits. In business, advertising is banned where it conveys misinformation, while company officers are liable for false statements to the extent of prosecution and even jail.

In politics, candidates who make claims about what they will do if elected will be judged later if there is no delivery on promises.

But there is one form of campaigning where making false claims is worry-free: there is no come back, and no legal requirement for fact-based statements. In fact, where campaigners shout the fake loud enough, they can even get the room to deny anyone else the right to speak.

It is a gap we are facing in Kenya, today, in a crescendo of false statements that may yet shape our future, as local NGOs funded by Germany’s Green Party distribute rounds of videos starring local celebrities holding up tomatoes and sukuma wiki stating that they are poisonous. The poison, they claim, comes from the pest control products used to produce them.

The same type of blanket campaigning against pesticides has already worked in Europe, which, like the rest of the world, used to assess pest control products for their safety, scientifically. It does not do that anymore. It changed its approach. The scientists were approving products that were safe to use and necessary to food production. Once the European public had been told so many times that all pesticides were poisonous, it was just too politically damaging to keep approving pesticides. The European Union (EU) banned them without any evidence of risk, just in case they might, one day, be found to be harmful, calling it the “precautionary principle”.

It has created a big mess. The EU banned one set of pesticides in case they might ever be found to be endocrine disruptors, which interfere with human’s hormone systems, causing reproductive and other issues. Under more political pressure, the EU banned the use of these same pesticides on imported foods from other nations, dozens of countries launched a world trade dispute against Europe, calling the ban a trade barrier, and demanding the EU deliver evidence any of the chemicals were endocrine disruptors. Fifteen years later, the EU has never posted any evidence: because none exists. The chemicals were banned as a political precaution, because of the campaigners.

Scientists are flailing in fighting frightening and emotional slogans with data. Indeed, as the real data grapples with the zero data, the most recent so-called Pesticides Atlas from the anti-pesticide campaigning groups has no citations at all.

However, this journey of fake claims is far more damaging in Kenya, than in Europe, as climate change exponentially increases the pests destroying our foods. Many of our pests are thousands of times more prolific now than 20 years ago, and that is proven by scientists who have counted them, documented their increased size, speed of growth, egg laying and numbers.

When the green campaigners of Europe sought to get the African Union to introduce blanket bans on pesticides as “a precaution”, the AU declined.

Now the race is on to get Kenya to do it. The trick is telling Kenyans the EU banned the pesticides because they harmed people and the environment. If the Kenyan government is finally forced to set aside all science and ban them too, on popular demand because celebrities say they are poisonous, the campaigners can go to Uganda and say: “you need to ban these, Kenya banned them because they were dangerous”.

The break in the chain would come as soon as there was a demand for proof these chemicals were dangerous, when used properly.

Without pest control, we will commit millions to starvation. The FAO estimated stopping pesticides would cut our food output by 40 per cent, but, last year, the ban on pesticides in Sri Lanka, was much more catastrophic. Farmers saw immediate yields fall at an average of 54 per cent, while the fall in rice, maize, tea and vegetable yields were as high as 95 per cent. This pest feast triggered a food crisis, an economic crisis, and within months, the government was forced to reverse the ban.

As Kenya is pushed to follow the same path, the money used to make fake claims in celebrity videos  might be better used training farmers how to best control pests.

—The writer is a farmer and CEO Fresh Produce Consortium of Kenya