These are that bees have parasites and viruses that can kill them (just like humans), a lot of the areas where they would inhabit and feed test positive for the presence of pesticides, and that there is not enough variety of blossoming plants in urban and now rural settings. The Varroa destructor is similar to a mosquito that preys on bees. They latch on to a bee and suck its blood, and also carries and transmits diseases as it goes from bee to bee. The diseases can be spread throughout a whole colony, and eventually result in the death of an entire colony of bees. Pesticides are a commonly thought of contributor to the death of bees because it is a man-made substance. The combination and application of pesticides is tested and monitored, however, when tested, the different species of bees and their corresponding size is often something over looked. An amount of pesticide that is not harmful to one species of bee could be lethal for a smaller species. Because of the extensive amount of monoculture crops, bees are left with very little variety of plants to get food from. Variety is a key component in a healthy ecosystem. The lack of food for bees is also present in urban