Beetle busters: Insect army battles to save Turkey’s northern forests
Thanasimus formicarius beetles are seen in a petri dish at the Identification and Diagnosis Laboratory for Combating Forest Pests in Gökçebey, Zonguldak, Turkey, July 8, 2020. (AA Photo)


A tiny beetle army is being assembled to rescue Turkey’s northern forests from deadly pests. Turkish scientists in the Black Sea province of Zonguldak are producing 12,500 ant beetles (Thanasimus formicarius), also known as European red-bellied clerids – a natural predator of the voracious bark beetles.

This battalion of beetles is being raised in the Zonguldak Regional Directorate of Forestry’s Identification and Diagnosis Laboratory for Combating Forest Pests in the Gökçebey district.

Ant beetles do not pose any harm to their natural environments and are released annually into forested areas that are particularly threatened by bark beetles – specifically in Turkey’s Black Sea provinces of Bartın, Karabük and Zonguldak.

Bark beetles have become a serious threat to trees across the Northern Hemisphere, devastating thousands of acres of forest from Siberia to North America. They infest both coniferous and broad-leaf trees, such as pine, spruce, oak, ash and poplar, damaging and sometimes killing the trees.

Adult ant beetles are extremely efficient predators of bark beetles, with strong mandibles that can bite through the bark beetles’ tough exoskeleton. Ant beetle larvae, on the other hand, also feed on bark beetle larvae.

Zonguldak Forest Regional Manager Zekeriya Beyazlı told reporters that forestry workers survey the forests each year and place the natural predators wherever the bark beetles are found.

"We minimize the harm of this pest by minimizing its population. Last year, 14,000 propagated ant beetles were raised and released into the forests," she said. The ant beetles reproduce and reach much higher population levels once they have been released into their natural habitat, where they continue their fight against the harmful bark beetle, she added.

Beyazlı noted the significant income farmers make from the forest, further stressing the importance of biological control, which is the use of living organisms to suppress the population of a pest.