Expert Explains: The Big Grasshoppers in Istanbul Are Not an Invasion

The large grasshoppers that have been spotted in Istanbul recently have caused concern, but experts say they are not an invasive species and do not carry diseases. The big grasshoppers are not an invasive species and do not carry diseases. Experts warn that if handled incorrectly, the grasshoppers can bite, which is not a serious problem for adults but can be painful for children. The best way to handle them is to use a jar or plastic container to catch them and release them in a nearby green area.Dr. Ergün Bacak, the head of the Avcılık and Yaban Hayatı Program at Istanbul University-Cerrahpaşa Ormancılık Meslek Yüksekokulu, said that most of the grasshoppers shared on social media are the white-faced bush cricket (decticus albifrons albifrons). The species can grow up to 5-6 centimeters in length, and its large size, long antennae, and strong legs draw attention. "This species is not invasive, and only one or two individuals enter each house. Due to the impact of social media, it seems like there is a massive grasshopper invasion, but that's not the case."Bacak emphasized that this species should not be confused with those that cause significant damage to agricultural areas, such as desert locusts. The white-faced bush cricket feeds on plants and other insects, playing a balancing role in the ecosystem. Bacak noted that the species sometimes consumes its own young and is not harmful to humans, does not carry diseases, or destroy agricultural products. "It is one of the species that contribute to the ecosystem." Bacak stated that the encounters between humans and wildlife have increased due to urbanization, which has reduced natural habitats. In areas where agricultural and natural areas are intertwined with settlements, such encounters are more common. Bacak explained that animals that lose their habitats tend to move to nearby areas and that the grasshopper is a nocturnal species that follows starlight and moonlight. "The reason they enter homes is not to search for food, but to be drawn to the artificial light." Bacak warned that citizens should not panic when encountering grasshoppers and should not touch them with their bare hands, as they can bite in self-defense. "This is not a serious problem for adults, but it can be painful for children. The best way is to use a jar or plastic container to catch them and release them in a nearby green area." The expert indicated that the current density of grasshoppers is temporary and will decrease in a few weeks.