b'ASSOCIATION NEWS are the most relevant species, listed in the OECDTable 2. The most internationally traded forest species among the ISTA accredited laboratories and reports, for which seed import and export tookanalysis of the Organisation for Economic Co-operation and Development (OECD) Forest Seed and place among countries participating in the ForestPlant Scheme reports (20172024)Seed and Plant Scheme. The latter information was gathered in terms of seed weight and numberTested forest species and generaMost important species imported and exported by the countries of germinable seeds. by ISTA accredited laboratories associated with the OECD Forest Seed and Plant SchemeRobinia pseudoacacia, PinusPicea abies, Picea sitchensis, Cedrus libani, Pseudotsuga menziesii, The OECD suggests classifying foresttaeda, Pinus elliottii, PinusPseudotsuga menziesii var. glauca, Khaya senegalensis, Larix reproductive material in the form of seeds intosylvestris and Pinus spp., Prunussibilica, Larix decidua, Acacia senegal, Anacardium occidentale, persica and Prunus spp., AbiesBetula pendula, Quercus robur, Quercus rubra, Quercus petraea, four categories, taking into account provenance,alba Miller, Fagus sylvatica L., LarixCastanea sativa, Carpinus betulus, Fagus sylvatica, Abies uniformity, seed production in orchards anddecidua Mill., Picea abies (L.)nordmanniana, Abies bornmuelleriana, Abies grandis, Acer breeding level: Karsten, Pyrus spp., Eucalyptuscampestre, Acer pseudoplatanus, Fraxinus sylvatica, Pinus nigra, Source-identified: seed material collectedspp., Quercus spp. Pinus sylvestris, Alnus glutinosa, Thuja plicata, Populus tremulafrom a forest area within a delineated region of provenanceSelected: seed material from a delineated population of trees possessing sufficient uniformityQualified: seed material from untested orchardsTested: seed material from tested orchards or stands which have been proven to produce material of improved qualityThe quantity of forest seeds in each category that are imported and exported by the associated countries is stated in the annual OECD Forest Seed and Plant Scheme reports and is presented in Figure 2.In general, it can be observed that over the years there has been an increase in the international trade of forest seeds from improved genetic material, as the average percentage of germinable seeds in the source-identified category has decreased in comparison with the other categories, which comprise more uniform seed sources and seeds originating from orchards. The results obtained from the ISTA Forest Tree and Shrub Seed Committee survey have proven useful in guiding the actions of the Committee, as well as in shedding light on the current state of the international forest seed market. This information brings issues to the fore, such as the need to include forest tree and shrub species traded internationally that are not yet covered by the ISTA Rules, as well as the need to develop and adapt methods for assessing the physiological quality of many of these species. Moreover, international seed trade is a pathway for non-native fungal pathogens and insect pests transmitted by seeds, which are capable of causing severe ecological and economic losses, and attention should be given to this matter.Figure 2. Amount of forest seeds (average percentage of germinable seeds) imported and exported in each forest reproductive material category, proposed by the Organisation for Economic Co-operation and Development Forest Seed and Plant Scheme, from 2017 to 2024SEED TESTING INTERNATIONAL OCTOBER 2025 63'