The steep decline in biodiversity is worrying, especially as wild species are important for pollination and pest control.
It's painfully clear nature is buckling under the weight of farming's demands. There's another way – but it involves accepting nature's limits.
The rice-eating fall armyworm has spread across Asia in a year and is now found in half the provinces of China.
The abandonment of crop farming fields isn't new. But some researchers say it's accelerated in the last two decades.