Studies on Dothistroma pini and D. septosporum in Georgia and the Ukraine
During spring-summer 2015, studies have been conducted in Western Ukraine and in Georgia to better understand the distribution of dothistroma needle blight, a disease of Pinus spp. associated with Dothistroma pini and D. septosporum (EU Annexes). Symptomatic and asymptomatic needles from 11 hosts (10 Pinus spp. and 1 Picea abies) were collected in 4 locations in the Ukraine (2 forest areas, 1 commercial garden centre and 1 botanical garden) and 4 locations in Georgia (all in forest areas). Laboratory analysis (molecular tests) confirmed the occurrence of both D. pini and D. septosporum in Georgia and the Ukraine.
- D. pini: detected in P. nigra (forest area in Racha-Lechkhumi region).
- D. septosporum: detected in P. sylvestris var. hamata (forest area in Samtskhe-Javakheti region) and in P. ponderosa (forest area in Kvareli region).
- D. pini: detected in P. nigra var. mollet (commercial garden centre in Lviv region – plants had been imported from the Netherlands).
- D. septosporum: detected in P. nigra var. australica (commercial garden centre in Lviv region – plants had been imported from the Netherlands) and in P. strobus (botanical garden in Lviv region).
Matsiakh I, Doğmuş-Lehtijärvi HT, Kramarets V, Oskay F, Drenkhan R (2018) Dothistroma spp. in Western Ukraine and Georgia. Forest Pathology, e12409. https://doi.org/10.1111/efp.12409