The frequency and intensity of insect outbreaks have increased in boreal forests, along with associated impacts on the growth economic losses host trees. In Finland, common pine sawfly (Diprion pini L.) is a serious pest, causing declines health responses Scots (Pinus sylvestris L.). We focused investigating species’ defoliating impact tree radial volume estimated value declined growth. Managed...

The responses of tree growth to recent climate warming may signal changes in the susceptibility of forest communities to compositional change and consequently impact a wide range of ecosystem processes and services. Previous research in the boreal forest has largely documented negative growth responses to climate in forest species and habitats characteristic of drier conditions, emphasizing the...

Herbivores can alter plant physiology through the induction of abnormal wood formation. Feeding by some insects induces the formation of false rings, a band of thick-walled latewood cells within the earlywood portion of the tree ring that reduces water transport. Hemlock woolly adelgid (Adelges tsugae Annand) and elongate hemlock scale (Fiorinia externa Ferris) are invasive insects that both f...

Climate warming and subsequent drought are predicted to alter local forest production carbon budgets, the sensitivity of which may be site- species-specific. Although a warmer drier climate often constrains tree growth, whether trees grown in cool, wet regions across Siberian can turn promoted remains unknown. Here, we aimed investigate historical growth tendency forests Sayan Mountain areas ex...

Verticillium wilt is a serious disease of pistachio caused by Verticilliumdahliae. Control of the disease is difficult due to soil borne nature of the causal agent. Verticillium wilt has been biologically controlled by Trichoderma spp. In the present study, Trichoderma spp. was isolated from soils of pistachio orchards and their effect was investigated on radial growth of Verticillium dahliae b...

The research aims to evaluate the impact of local industrial pollution on radial growth in affected Norway spruce (Picea abies (L.) Karst.) and silver fir (Abies alba Mill.) stands Tarnița study area Suceava. For northeastern Romania, mining operation constituted a hotspot pollution. primary processing non-ferrous ores containing heavy metals form complex sulfides was main cause region from 196...

The early culmination of maximum radial growth (RG) in late spring has been found in several coniferous species in a dry inner Alpine environment. We hypothesized that an early decrease in RG is an adaptation to cope with drought stress, which might require an early switch of carbon (C) allocation to belowground organs. To test this hypothesis, we experimentally subjected six-year-old Norway sp...