Bucharest faces temporary 'gamma moth' invasion

Residents of Bucharest are currently witnessing an extraordinary proliferation of "gamma moths" (Autographa gamma), a nocturnal species that has appeared in unusually high numbers across the city. These insects are visible in parks, on streets, and even inside homes, prompting concern and numerous questions among the populace.

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In the general category, they are moths. A large part are migratory species, they come from the Mediterranean basin, and here is their mating season. Because of this, we see them now in larger numbers.

Aurelian Pintilescu, a biologist with the Municipal Company Eco Igienizare, explained that these moths are largely migratory, originating from the Mediterranean basin. Their current visibility in such large numbers is attributed to their mating season, which is occurring now. This phenomenon, however, is temporary.

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The adults will disappear in about two weeks. The duration also depends on temperature, vegetation, and humidity. There are several factors that influence their evolution.

Pintilescu stated that the adult moths are expected to disappear within approximately two weeks, though the exact duration depends on environmental factors such as temperature, vegetation, and humidity. While their mass presence might be unsettling, the gamma moth poses no threat to human health. The species does not sting, bite, or transmit diseases, distinguishing them from more dangerous insects like mosquitoes and ticks.

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There is nothing to be scared of. They do not pose a danger to the population. Mosquitoes and ticks pose a danger to the population.

Regarding pest control measures in Bucharest, Pintilescu noted that disinfection treatments have a limited and secondary effect on these moths. The substances used are primarily calibrated for other species, like mosquitoes and ticks, to minimize harm to beneficial insects. The Municipal Company Eco Igienizare does not have direct responsibilities for controlling this specific moth species, as their focus is on vectors impacting public health. For individuals seeking to prevent moths from entering their homes or balconies, simple measures like installing mosquito nets and avoiding strong lighting in open areas at night are recommended.

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To a small extent, the treatments we apply against mosquitoes and ticks can also have an effect on these insects.