One of the most present pests in the last 5-6 years in various sectors (agricultural, horticultural, forestry) is definitely the Halyomorpha halys insect from the Pentatomidae family. The insect is somewhat established in Romania, 8 years have passed since its first reporting. Mainly, it is considered a species that lives near houses and the active life of people and feeds on leaves, inflorescences and fruits from urban spaces, that's why we thought of analyzing the wintering places with more interest. In this sense, we analyzed 5 spaces (marginal strips) along the Green Forest in the city of Timisoara in order to establish number of hibernating adults, both at the beginning of winter (November) and at the end of winter (March), then in April to see if they are still present. The analyzed substrate consisted of foliage on an area of 1m2 with leaves of deciduous trees and shrubs with deciduous leaves. From the findings, we realized that the average of hibernating individuals in the samples from the spring of 2024 had limits from 6 to 12 compared to 2 to 5 in Romania of the year 2023, in all 5 places subject to observation. As such, we can assume that this, being polyphagous, has left its wintering places and headed for other places to ensure its polyphagous feeding and implicitly the damage of various crops. It is worth it, therefore, taken into consideration in the future and the possibility of easily invading vegetable sources of food.

Keywords: Halyomorpha halys, pest, forest, hibernating adults

agronomy

Presentation: poster