Can cicadas harm humans? This question often arises during the annual cicada emergence, known as “Brood X,” when these fascinating insects descend upon various regions in North America. While cicadas are generally harmless to humans, it is important to understand their behavior and potential impact on human activities.
Cicadas, also known as “locusts of the summer,” are a group of insects belonging to the family Cicadidae. There are over 2,500 species of cicadas worldwide, with around 400 species found in North America. These insects are characterized by their distinctive life cycle, which involves spending 13 to 17 years underground before emerging en masse as adults.
One reason why cicadas are often feared is their overwhelming numbers during their emergence. When Brood X cicadas finally reach the surface, they can be found in swarms of millions, covering trees, sidewalks, and even homes. This mass emergence can cause some inconvenience, but it is important to note that cicadas do not bite or sting humans. Their mouthparts are designed to pierce tree bark and feed on the sap, not human skin.
However, despite their lack of harmful intentions towards humans, cicadas can cause some damage to property and vegetation. Their exoskeletons can accumulate on surfaces, creating a sticky mess that may require cleaning. Additionally, their large numbers can overwhelm bird populations, which may result in some local bird mortality. Cicadas are a crucial food source for many birds, but an excessive number can lead to overconsumption and depletion of bird populations.
Another concern regarding cicadas is their potential impact on agriculture. While cicadas do not typically cause significant damage to crops, their large numbers can lead to some issues, such as increased leaf feeding and potential damage to fruit trees. However, the overall impact on agriculture is minimal compared to other pests.
Cicadas are also a delicacy in some cultures, particularly in China and Japan. They are known to be rich in protein and can be consumed cooked or as a snack. In fact, during their emergence, it is not uncommon for people to gather cicadas to eat them.
In conclusion, while cicadas can cause some inconvenience and property damage during their emergence, they do not pose a direct threat to human health. Understanding their behavior and the potential impact on the environment can help manage their presence and reduce any negative effects. So, the next time you see a cicada, remember that these fascinating insects are generally harmless and can even be a source of food for some.
