Swiss farmers planted flowers between their crops and watched pest damage drop by over half. The UK is now running the same trial across 15 farms. The reason this works is embarrassingly simple.
A Swiss study on winter wheat found that fields with wildflower strips had 40 to 53% fewer leaf beetle pests than fields without. Crop damage dropped 61%.
The mechanism is simple. Wildflowers feed hoverflies, lacewings, parasitic wasps, ladybugs, and ground beetles. Those insects eat the aphids, beetle larvae, and caterpillars that farmers would otherwise spray for. A few meters of wildflowers hosts an unpaid pest control crew that would jump at the chance to whoop some aphid ass.
In apple orchards where no insecticides had been used for five years, plots with wildflower alleyways had 9.2% damaged fruit. Control plots without flowers had 32.5%.
The UK is now running a five-year trial across 15 farms placing 6-meter flower strips through the middle of fields, not just at the edges, because the beneficial insects can't reach the center of a large field otherwise.
This works the same way in a backyard vegetable garden as it does on a commercial farm. Plant native flowering species near your tomatoes, beans, and squash. The pests still show up, but the predators show up too.
Study doi: 20151369
Bhutan did something almost no country on Earth has done: they put trees in the constitution.
Not a vague "we care about nature" type promise but an actual number. At least 60% of the country must remain under forest cover for all time.
They met the goal and blew past it.
About 70% of Bhutan is forested, which is one reason this small Himalayan country is one of the few carbon-negative nations on Earth. It absorbs more carbon than it emits.
That doesn't mean Bhutan has no emissions. It does. But its forests and land absorb more than the country puts out.
Which is kind of wild when you think about it, because most countries treat forests like a resource to be used and abused as needed.
Bhutan treated them more like national infrastructure. They looked at their forests and decided they weren't just leftover land waiting to be used for something.