There is an American expression, to "shoot yourself in the foot". It means to say or do something that ends up hurting yourself.
I feel like this often applies to our approach to farming and the agricultural industry. There's no doubt that a country of 300+ million people needs to produce a lot of food, and we need to use large areas of land for farming. But the way we farm can have a negative impact on bees, butterflies and other pollinating insects. In the long run it hurts us and our ability to feed ourselves. Without these natural pollinators, our food supply would be drastically reduced. There has to be a better balance.
Excerpted from "Monarch Butterflies Keep Disappearing. Here's Why." by By Brad Plumer January 29, 2014
Washington Post http://www.washingtonpost.com/blogs/wonkblog/wp/2014/01/29/the-monarch-butterfly-population-just-hit-a-record-low-heres-why/
"Lincoln Brower, a professor of biology at Sweet Briar College who has studied the monarch migrations for decades. In a 2012 paper, he cited three big reasons the populations are dwindling: Deforestation in Mexico, recent bouts of severe weather, and the growth of herbicide-based agriculture destroying crucial milkweed flora in the Midwest."
"….The most catastrophic thing from the point of view of the monarch butterfly has been the expansion of crops that are planted on an unbelievably wide scale throughout the Midwest and have been genetically manipulated to be resistant to the powerful herbicide Roundup."