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DocumentThe effect of modification of hydroxy group of alkanol and benzyl alcohol to hydroxyalkyloxy group on nematicidal activity against pine wood nematode
XV World Forestry Congress, 2-6 May 2022
2022Also available in:
No results found.Pine wood nematode (PWN), Bursaphelenchus xylophilus causes devastating damage to pines worldwide. Control and prevention of pine wood disease (PWD) in Korea is primarily trunk injection of abamectin and emamectin benzoate. Previously we found the nematicidal activity of 2-(1-undecyloxy)-1-ethanol (monochamol), which is reported to be aggregation pheromone of its vectors, Monochamus species, was as same to that of abamectin. Since then, we tried to develop new agent for controlling and preventing PWD using alkyloxyalkanols (ROR’OH) and benzyloxyalkanols (BzOROH). We synthesized ROR’OH and BzOROH by substituting hydroxy group (–OH) to hydroxyalkyloxy group (–OROH) and tested their nematicidal activity against PWN. As controls, monochamol and abamectin were also tested. The substitution –OH group to –OROH affected the nematicidal activity increasingly. The nematicidal activity was different according to total carbon chain length in compounds, although the compounds have same molecular formula. It may be due to the different position of oxy group in the compound of alkyloxyalkanol LC50 values of C10OC4OH, C6OC8OH, C10OC2OH and C12OC2OH were as same as that of monochamol. Substitution of hydroxy group of benzyl alcohol enhanced the nematicidal activity of new compound. Here, we will report the nematicidal activity changes by substitution –OH of alkanol and benzyl alcohol to –OROH. Keywords: Agriculture, Research ID: 3619465 -
ArticlePossibility of local wood from a global perspective the environmental performance on wooden main stadium of Tokyo 2020
XV World Forestry Congress, 2-6 May 2022
2022Also available in:
No results found.Timber is a renewable and sustainable material which potentially plays a leading role in the development of a sustainable society. This is the rationale behind Japan passing the Act for Promotion of Use of Wood in Buildings, etc. to Contribute to the Realization of a Decarbonized Society in 2021. To promote timber utilization, the forestry and timber business sectors should cooperate with green consumers. However, there are several challenges to address before such a cooperation can be achieved: illegal logging, vulnerable forest management, and related trade. FSC and PEFC have made substantial contributions by developing forest management schemes with supply chain certification. However, voluntary certification schemes have a cost bottleneck to become mainstream in the global timber supply chain. The Woodmiles Forum, a Japanese private organization, argued that locality is an important factor in eliminating environmental risks. Firstly, it reduces the environmental impact of CO2 emissions from the transportation process, which accounts for half the carbon footprint. Secondly, it reduces the cost of transporting long-distance environmental information, such as forest and legality certification. Taking advantage of this accumulation, the Forum evaluated the new national stadium, which was the main venue for Tokyo 2020. The stadium is built of regional local timber from all over Japan. We compared the results of this evaluation with the evaluation of the facilities in London 2012. The environmental significance of regional timber is that the transparency of the supply chain can be easily ensured. Additionally, the environmental load of the timber transportation process is small, and this is the focus of this study. Keywords: Local Wood, Woodmiles, Tokyo 2020, Circular Economy, Climate Change ID:3486248 -
ArticleThe preservation of natural forests through the establishment of industrial wood production plantations via the new, fast growing Robinia pseudoacacia ‘Turbo Obelisk’ varieties and new cultivation technologies
XV World Forestry Congress, 2-6 May 2022
2022Also available in:
No results found.After decades of research and development, Silvanus Forestry Ltd. and HungaroPlant Ltd. have successfully propagated the Robinia pseudoacacia ‘Turbo Obelisk’ variety group and developed the necessary cultivation technologies, specifically for intensive industrial wood production plantations. In comparison to the Hungarian and traditional black locust varieties and cultivation technology, industrial wood production plantations established with our variety group and using our cultivation technologies can produce twice as much timber yield and industrial timber yield, considering 15-year rotation periods. These parameters are comparable with the performance of the widespread Eucalyptus and Pinus plantations in the subtropics. Our varieties and cultivation technologies, however, are also usable in subtropical, temperate, as well as tropical climates. The outstanding yields achieved by the ‘Turbo Obelisk’ varieties and the extremely high industrial wood output can provide a significant contribution to the conservation and maintenance of natural ecosystems, whilst the CO2 sequestration per unit area per time is also several times that of natural forests. A particular advantage to emphasize is long term carbon sequestration due to the high percentage of industrial wood yield. Increasing the exceptional tolerance of black locust against drought, pollution and low-quality soils, our varieties are exceptionally suitable for the utilization of marginal agricultural areas, the agricultural utilization of which would otherwise create an economical loss. This can also significantly increase the advancement of less developed regions. In addition to plantation cultivation, it also provides a cost-effective solution for the establishment of protective forest belts, road-side plantings, quicksand fixation and soil renovation. Delicious honey production is also a possible revenue stream. The global exploitation of the research findings has begun, having already successfully established test plantations in China, India, and Pakistan, as well as in several European countries. Keywords: dry agricultural areas, micro-propagated black locust varieties, ‘Turbo Obelisk’, carbon sequestration ID: 3484660
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