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In recent months, the pine processionary caterpillar, increasingly observed on pine trees in Samsun, has posed a serious threat to both forest ecosystems and human health. Particularly noticeable with its white, cotton-like nests in pine forests along the Samsun–Ankara highway, this pest also creates risks in urban areas.
 
Ondokuz Mayıs University Faculty of Agriculture, Department of Plant Protection faculty member İzzet Akça stated that the pine processionary caterpillar causes severe damage by voraciously feeding on coniferous trees, noting:

“They feed aggressively on the needles of coniferous tree species, particularly pines. They also cause damage in urban areas. In parks and residential spaces, contact with humans can lead to allergic reactions.”

“Contact with people in gardens or picnic areas causes allergic reactions”

Emphasizing that damage will increase if preventive measures are not taken, Akça explained:

“In June and July, adult moths emerge, mate, and lay their eggs collectively on pine needles. On average, around 200 eggs are laid. The larvae that hatch initially feed on young needles, and at this stage they do not cause allergic reactions because they do not yet have irritating hairs. Later, they form nests and live collectively inside them. We are currently in this collective nesting period. When they come into contact with people in gardens or picnic areas, they can cause allergic reactions, while in plants they cause damage by consuming the needles. Control measures must be implemented with an integrated approach. First, the nests should be cut down, collected, and destroyed. Chemical control should not be considered as a first option; if necessary, environmentally friendly methods should be preferred.”

Akça also highlighted the role of global warming in the increase of insect populations, stating:

“Climate change affects many living organisms, but this impact is most pronounced in insects. Global warming has played a major role in the recent increase of the pine processionary caterpillar.”