macro image of a dead bee on a leaf from a hive in decline, plagued by the colony collapse disorder and other diseases

acarapis apiculture bee beehive chemically closeup collapse colony copy dangerous dead death decline diseases disorder dust dysentery empty family foulbrood frame fungus genetically health honey honeybee insecticides killed macro modified neonicotinoid nosema parasite pest pesticides plagued poisonous problems reaction space swarm texture toxic treatment varroa viral warning