Here’s an article by Pamela Ronald in Scientific American, telling us why she believes that genetically modified (GM, also called genetically engineered, GE) crops are what the world needs to feed our growing population.
Dr Ronald explains how ‘most Bt crops remained effective against most pests for more than a decade’. Bt crops are the GM crops which make Bacillus thuringiensis toxin to kill insect pests. But as I told you a few minutes ago, some pests have been reported to evolve Bt resistance after a decade or so.
As you know, I keep an open mind about GM. But what I’m seeing about Bt crops leads me to think that they’re a temporary fix. A decade without some of the pests doesn’t sound to me like sustainability.