It is exciting to see that there is interest in studies of the biotic damage that climate change could imply for Finland’s forest, in this case by bark beetles. Attacks of moth species could ease bark beetle attacks. Moths as Lymantria monacha (nun moth) and Lymantria dispar (gypsy moth) lead to losses in stand growth, which requires great investments in monitoring and controlling. For example, in Poland in 1853-1855, L. monacha outbreak damaged about 403,000 km2 of forest and opened the door for a severe outbreak of Ips typographus (Bejer, 1988).
Those moths are now in south Finland, with different densities that require careful studies (Melin et al., 2020), what is my topic of interest.

Melin, M., Viiri, H., Tikkanen, O.P., Elfving, R., Neuvonen, S., 2020. From a rare inhabitant into a potential pest–status of the nun moth in Finland based on pheromone trapping. Silva Fenn. 54, 1–9.
Bejer, B., 1988. The nun moth in European spruce forests, in: Berryman, A.A. (Ed.), Dynamics of Forest Insect Populations: Patterns, Causes, Implications. Springer, Boston, pp. 211–231.