Pollinators such as bees, birds and bats are responsible for about a third of the world’s crop production, according to the United Nation’s Food and Agricultural Organization. The US has approved use of the world’s first vaccine for honey bees which was engineered to prevent fatalities from American foulbrood disease, a condition known to weaken colonies by attacking bee larvae. It works by introducing an inactive version of the bacteria which causes the disease into the royal jelly fed to the queen, whose larvae then gain immunity. Are vaccines becoming too much ?

