To prevent large patch disease, caused by Rhizoctonia solani AG-2-2, in zoysiagrass a fungicide, Tebuconazole and three microbial agents Streptomyces sp. Burkholderia sp. and Streptomyces sp. S8 were applied in commercial turfgrass cultivation field in Sanchung, Gyeongnam, Korea. All treatments showed 50% reduced the pathogen population in thatch layer throughout the yearly cultivation period. Not only reduced the pathogen population, Tebuconazole, Streptomyces sp. Burkholderia sp. and Streptomyces sp. S8 treatment also enhanced turfgrass growth, chlorophyll and proline content. Malondialdehyde contents in each treatment was reduced from 6.2~28.9% when compared with the control. Taken together, reduction of pathogen population in soil lowered the disease incidence or severity, and allowed the turfgrass developed as normal condition. The results suggested that the selected microbial agents may use as biological control and growth promotion agents for the Zoysia turfgrass.
{"title":"Turfgrass Probiotics Reduce Population of Large Patch Pathogen and Improve Growth of Zoysiagrass","authors":"Eun-Ji Bae, Chang Wook Cheon, A. Hong, Kwang-Soo Lee, Youn-Sig Kwak","doi":"10.5660/WTS.2017.6.3.249","DOIUrl":"https://doi.org/10.5660/WTS.2017.6.3.249","url":null,"abstract":"To prevent large patch disease, caused by Rhizoctonia solani AG-2-2, in zoysiagrass a fungicide, Tebuconazole and three microbial agents Streptomyces sp. Burkholderia sp. and Streptomyces sp. S8 were applied in commercial turfgrass cultivation field in Sanchung, Gyeongnam, Korea. All treatments showed 50% reduced the pathogen population in thatch layer throughout the yearly cultivation period. Not only reduced the pathogen population, Tebuconazole, Streptomyces sp. Burkholderia sp. and Streptomyces sp. S8 treatment also enhanced turfgrass growth, chlorophyll and proline content. Malondialdehyde contents in each treatment was reduced from 6.2~28.9% when compared with the control. Taken together, reduction of pathogen population in soil lowered the disease incidence or severity, and allowed the turfgrass developed as normal condition. The results suggested that the selected microbial agents may use as biological control and growth promotion agents for the Zoysia turfgrass.","PeriodicalId":23804,"journal":{"name":"Weed&Turfgrass Science","volume":"24 1","pages":"249-261"},"PeriodicalIF":0.0,"publicationDate":"2017-09-30","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"88503155","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
Pub Date : 2017-09-30DOI: 10.5660/WTS.2017.6.3.196
Seung-Hyun Cho, Deok-Ryeol Lee, Song-i Lee, Ki-Kwon Lee
This study was conducted to investigate the change of yield and quality according to seeding time and planting density and to determine effective weed control method in wet-hill-seeding use black colored rice. The most effective weed control system was application of bromobutide ․ thiobencarb five days before seeding followed by bensulfuron ․ mefenacet ․ thiobencarb 12 days after seeding (barnyardgrass at 2.5-3.0 leaf stage). The seedling stand by seeding time and planting density increased with the delay seeding time and high planting density. The heading dates were delayed as the seeding time became late but no difference was found between planting density. The anthocyanin content of black colored rice was higher at late seeding time and lower planting density. The yield of full colored rice was high 80 plants per 3.3 m 2 in seeding on May 30 and June 10. This information could be useful for spreading rice direct seeding by inducing stabilization of wet-hill-seeding use black colored rice.
{"title":"Weed Control System, Yield and Quality Characteristic by Cropping System in Wet-Hill-Seeding Use Black Colored Rice","authors":"Seung-Hyun Cho, Deok-Ryeol Lee, Song-i Lee, Ki-Kwon Lee","doi":"10.5660/WTS.2017.6.3.196","DOIUrl":"https://doi.org/10.5660/WTS.2017.6.3.196","url":null,"abstract":"This study was conducted to investigate the change of yield and quality according to seeding time and planting density and to determine effective weed control method in wet-hill-seeding use black colored rice. The most effective weed control system was application of bromobutide ․ thiobencarb five days before seeding followed by bensulfuron ․ mefenacet ․ thiobencarb 12 days after seeding (barnyardgrass at 2.5-3.0 leaf stage). The seedling stand by seeding time and planting density increased with the delay seeding time and high planting density. The heading dates were delayed as the seeding time became late but no difference was found between planting density. The anthocyanin content of black colored rice was higher at late seeding time and lower planting density. The yield of full colored rice was high 80 plants per 3.3 m 2 in seeding on May 30 and June 10. This information could be useful for spreading rice direct seeding by inducing stabilization of wet-hill-seeding use black colored rice.","PeriodicalId":23804,"journal":{"name":"Weed&Turfgrass Science","volume":"18 1","pages":"196-202"},"PeriodicalIF":0.0,"publicationDate":"2017-09-30","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"80955923","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
{"title":"Effect of Seeding and Nitrogen rates on the Growth characters, Forage yield, and Feed value of Barnyard millet in the Reclaimed tidal land","authors":"Jae-Bok Hwang, Tae-Sun Park, Hong-Kyu Park, Hak-Sin Kim, In-Bae Choi, Hee-Soo Bae","doi":"10.5660/WTS.2017.6.2.124","DOIUrl":"https://doi.org/10.5660/WTS.2017.6.2.124","url":null,"abstract":"사료용 피 직파재배시 적정 파종량 시험에서 입모수는 파종량이 증가할수록 많았으며, 입모율은 41-42% 정도였다. 경수도 파종량이 증가할수록 많았고, 초장은 파종량이 많을수록 증가하였으나 $50kg;ha^{-1}$ 에서는 감소하였다. 파종량이 많았던 $50kg;ha^{-1}$ 에서 도복지수가 3이었다. 건물중은 파종량 $40kg;...","PeriodicalId":23804,"journal":{"name":"Weed&Turfgrass Science","volume":"49 1","pages":"124-129"},"PeriodicalIF":0.0,"publicationDate":"2017-06-30","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"77597575","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
Pub Date : 2017-06-30DOI: 10.5660/WTS.2017.6.2.151
J. H. Lee, G. Shim, Jeong-Ho Kim, Chang-Wook Jeon, Youn-Sig Kwak
. Summer patch is the most serious disease at turfgrass field or golf course established with Kentucky bluegrass during high temperature season in Korea. Nevertheless, chemicals for the summer patch control are not yet registered in Korea. We isolated the pathogens from the turfgrass showing typical summer patch symptoms and identified as Magnaporthiopsis poae by using the internal transcribed spacer ITS1 and ITS4 sequences of rDNA. The inhibition rates of the pathogen were investigated for 10 fungicides. As results, the pathogen growth was suppressed when chemicals concentration increased and negatively correlated with incubation period with the chemicals. In triazole group, all chemicals (metconazole, myclobutanil, propiconazole and tebuconazole) treated showed the inhibition rates by 100%. Thiophanate-methyl showed the next highest inhibition effect against a summer patch pathogen. In strobilurin group, pyraclostrobin was the highest suppression effect compared with azoxystrobin and trifloxystrobin. Inhibition effect of fludioxonil and fluxapyroxad on pathogen was similar to the trifloxystrobin. Based on the results, triazole and carboxamide groups are strongly recommended due to the highest inhibition effect on the summer patch pathogen, Magnaporthiopsis poae.
{"title":"Investigation of Fungicides Inhibitory Effect of on Summer Patch Disease, Caused by Magnaporthiopsis poae, in Kentucky bluegrass","authors":"J. H. Lee, G. Shim, Jeong-Ho Kim, Chang-Wook Jeon, Youn-Sig Kwak","doi":"10.5660/WTS.2017.6.2.151","DOIUrl":"https://doi.org/10.5660/WTS.2017.6.2.151","url":null,"abstract":". Summer patch is the most serious disease at turfgrass field or golf course established with Kentucky bluegrass during high temperature season in Korea. Nevertheless, chemicals for the summer patch control are not yet registered in Korea. We isolated the pathogens from the turfgrass showing typical summer patch symptoms and identified as Magnaporthiopsis poae by using the internal transcribed spacer ITS1 and ITS4 sequences of rDNA. The inhibition rates of the pathogen were investigated for 10 fungicides. As results, the pathogen growth was suppressed when chemicals concentration increased and negatively correlated with incubation period with the chemicals. In triazole group, all chemicals (metconazole, myclobutanil, propiconazole and tebuconazole) treated showed the inhibition rates by 100%. Thiophanate-methyl showed the next highest inhibition effect against a summer patch pathogen. In strobilurin group, pyraclostrobin was the highest suppression effect compared with azoxystrobin and trifloxystrobin. Inhibition effect of fludioxonil and fluxapyroxad on pathogen was similar to the trifloxystrobin. Based on the results, triazole and carboxamide groups are strongly recommended due to the highest inhibition effect on the summer patch pathogen, Magnaporthiopsis poae.","PeriodicalId":23804,"journal":{"name":"Weed&Turfgrass Science","volume":"31 1","pages":"151-156"},"PeriodicalIF":0.0,"publicationDate":"2017-06-30","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"79423143","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
Pub Date : 2017-06-30DOI: 10.5660/WTS.2017.6.2.157
Je-Yong Jeong, Young-sun Kim, S. Cho, Geung-Joo Lee
. Functional microorganisms decompose various organic matter by enzyme activity and suppress plant disease caused by pathogen. This study was conducted to isolate and select functional microorganisms with protein or carbohydrate degradation activities and antagonistic activity against turfgrass fungal pathogens for eco-friendly turfgrass management in golf course from compost containing livestock manure of poultry or swine. Totally 68 isolates collected from livestock manure compost strains were isolated and tested for their activities of amylase, protease and lipase and antagonistic activities against Rhizoctonia solani AG2-2 , R. solani AG1-1 , and Sclerotinia homoeocarpa . Among the isolates, 34 strains were selected as functional microbes showing higher activities of amylase and protease. Three isolates of ASC-14, ASC-18, and ASC-35 among the 34 strains were selected as antifungal bacterial strains repressing the above 3 turfgrass fungal pathogens. Analysis results of 16s rRNA gene sequence and phylogenic cluster indicated that ASC-14 and ASC-18 belonged to Bacillus amyloliquefaciens , while ASC-35 was B. subtilis , respectively.
{"title":"Isolation and Selection of Functional Microbes for Eco-friendly Turfgrass Management in Golf Course from Livestock Manure Compost","authors":"Je-Yong Jeong, Young-sun Kim, S. Cho, Geung-Joo Lee","doi":"10.5660/WTS.2017.6.2.157","DOIUrl":"https://doi.org/10.5660/WTS.2017.6.2.157","url":null,"abstract":". Functional microorganisms decompose various organic matter by enzyme activity and suppress plant disease caused by pathogen. This study was conducted to isolate and select functional microorganisms with protein or carbohydrate degradation activities and antagonistic activity against turfgrass fungal pathogens for eco-friendly turfgrass management in golf course from compost containing livestock manure of poultry or swine. Totally 68 isolates collected from livestock manure compost strains were isolated and tested for their activities of amylase, protease and lipase and antagonistic activities against Rhizoctonia solani AG2-2 , R. solani AG1-1 , and Sclerotinia homoeocarpa . Among the isolates, 34 strains were selected as functional microbes showing higher activities of amylase and protease. Three isolates of ASC-14, ASC-18, and ASC-35 among the 34 strains were selected as antifungal bacterial strains repressing the above 3 turfgrass fungal pathogens. Analysis results of 16s rRNA gene sequence and phylogenic cluster indicated that ASC-14 and ASC-18 belonged to Bacillus amyloliquefaciens , while ASC-35 was B. subtilis , respectively.","PeriodicalId":23804,"journal":{"name":"Weed&Turfgrass Science","volume":"16 1","pages":"157-164"},"PeriodicalIF":0.0,"publicationDate":"2017-06-30","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"89635550","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
In‐Yong Lee, Y. Oh, J. Park, S. Hong, Jun-Keun Choi, Sujin Heo, Eun-jeong Kim, C. Lee, K. Park, Seng-Hyun Cho, O. Kwon, I. Im, Sang-Kuk Kim, Deok-Gyeong Seong, Y. Chung, Chang-Seog Kim, Jeongran Lee, H. Seo, H. Jang, Jin-Won Kim
The nationwide weed survey was conducted in arable land, paddy field, upland, orchard and pasture, over whole country of Korea during 3 years from 2013 to 2015. Also, these survey were conducted in order to determine a change of weed community and to identify a major dominant weed species, and problem weeds. Weeds of arable land were composed of 619 species belonging to 81 families. Weeds occurred in paddy field were 90 species belonging to 28 families, upland weeds were 375 species of 50 families, orchard weeds were 492 species of 63 families and pasture weeds 275 species of 52 families. Among total 81 families, the Asteraceae (15.5%) was the biggest family, followed by Poaceae (13.1%), Fabaceae (5.5%), Cyperaceae (5.2%), Polygonaceae (6.3%), respectively. And these weed species were composed of annual weeds of 209 species (33.8%), winter annual of 102 species (16.4%) and perennial weeds of 308 species (49.8%). Exotic weeds naturalized in Korea were investigated as 166 species. Weed flora in Korean cultivation area have been increased as much as 13 families and 186 species for 10 years compared to 2000~2004 weed survey result of 68 families and 433 species. The increment could be resulted from the change of weed population such as increase of the herbicide-resistant and the difference of investigation method.
{"title":"Occurrence Characteristics of Weed Flora in Arable Fields of Korea","authors":"In‐Yong Lee, Y. Oh, J. Park, S. Hong, Jun-Keun Choi, Sujin Heo, Eun-jeong Kim, C. Lee, K. Park, Seng-Hyun Cho, O. Kwon, I. Im, Sang-Kuk Kim, Deok-Gyeong Seong, Y. Chung, Chang-Seog Kim, Jeongran Lee, H. Seo, H. Jang, Jin-Won Kim","doi":"10.5660/WTS.2017.6.2.86","DOIUrl":"https://doi.org/10.5660/WTS.2017.6.2.86","url":null,"abstract":"The nationwide weed survey was conducted in arable land, paddy field, upland, orchard and pasture, over whole country of Korea during 3 years from 2013 to 2015. Also, these survey were conducted in order to determine a change of weed community and to identify a major dominant weed species, and problem weeds. Weeds of arable land were composed of 619 species belonging to 81 families. Weeds occurred in paddy field were 90 species belonging to 28 families, upland weeds were 375 species of 50 families, orchard weeds were 492 species of 63 families and pasture weeds 275 species of 52 families. Among total 81 families, the Asteraceae (15.5%) was the biggest family, followed by Poaceae (13.1%), Fabaceae (5.5%), Cyperaceae (5.2%), Polygonaceae (6.3%), respectively. And these weed species were composed of annual weeds of 209 species (33.8%), winter annual of 102 species (16.4%) and perennial weeds of 308 species (49.8%). Exotic weeds naturalized in Korea were investigated as 166 species. Weed flora in Korean cultivation area have been increased as much as 13 families and 186 species for 10 years compared to 2000~2004 weed survey result of 68 families and 433 species. The increment could be resulted from the change of weed population such as increase of the herbicide-resistant and the difference of investigation method.","PeriodicalId":23804,"journal":{"name":"Weed&Turfgrass Science","volume":"59 1","pages":"86-108"},"PeriodicalIF":0.0,"publicationDate":"2017-06-30","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"75479043","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
Pub Date : 2017-06-30DOI: 10.5660/WTS.2017.6.2.109
Weiqian Jia, K. Hwang, O. Won, In‐Yong Lee, Jeongran Lee, Suk-Won Roh, K. Park
In Korea, fruit represents one of the main categories of economic crops. The country’s fruit tree planted area was 155,000 ha in 2005, which is seven times larger than the acreage of orchards in 1955 (Ha and Chung, 2012). In particular, the area planted with peach trees has increased by around 3%, from 13,908 ha in 2011 to 14,210 ha in 2012. The yield of peaches ranked forefront in all fruits (Hong et al., 2012). In the face of the progressive increase in peach tree area, a series of problems have emerged in peach orchards, such as labor shortages, lagging product sales, and insufficient use of science-based management technologies. For these reasons, weed management methods are especially worthy of further study through surveys of weed flora. Weed flora is a common component of orchard ecosystems. On the one hand, an abundance of weed species can increase population diversity in orchards. A previous survey of weeds was carried out in the Chungnam region; its results showed that 75 weed species belonging to 26 families were identified in orchard fields and that Echinochloa crus-galli was the most dominant of the weed species with high densities (Choi et al., 2009a). Additionally, Park et al. (2005) reported that weed ranking in orchards according to dominance had changed compared to that reported a decade ago. On the other hand, weeds bring about some serious adverse effects for peach trees. These negative impacts are mainly divided into environmental and biotic effects. Environmental effects can mean competition for light, water, and nutrients between weeds and peach trees (MacRae et al., 2007). Peach tree yields, rootstock, and leaves are affected by weed competition (Tworkoski and Glenn, 2001). In contrast, the term ‘biotic effects’ can imply that weed species are known favorable hosts ABSTRACT. This study was carried out two surveys in 2015 to monitor weed occurrence and determine the most troublesome weeds in peach orchards of Korea. The first survey identified 56 taxa belonging to 23 families including 27 annuals, 11 biennials, and 18 perennials. Based on importance values, Conyza canadensis (5.12%), Plantago asiatica (4.17%), and Trifolium repens (3.86%) were the dominant weeds in the first survey (from April to June). Seventeen exotic weeds were identified in the first survey, including Conyza canadensis, Trifolium repens, and Chenopodium ficifolium. The second survey (from September to October) identified 42 weeds belonging to 19 families including 23 annuals, 5 biennials, and 14 perennials. According to importance values, Digitaria ciliaris (8.00%) was the most dominant weed, followed by Echinochloa utilis (6.61%) and Rorippa palustris (6.48%). There were 12 exotic weeds, including Taraxacum officinale, Rumex crispus, and Trifolium repens. Additionally, according to Braun-Blanquet’s scale showed that the dominance value was level 1 (41.98% and 46.43%, respectively) in two surveys. Currently, 40% of the total surveyed peach orchards appl
在韩国，水果是主要的经济作物之一。2005年果树种植面积为15.5万公顷，是1955年果园面积的7倍(ha and Chung, 2012)。特别是桃树种植面积增加了约3%，从2011年的13908公顷增加到2012年的14210公顷。桃子的产量在所有水果中排名第一(Hong et al.， 2012)。面对桃树面积的逐步增加，桃园出现了劳动力短缺、产品销售滞后、科学管理技术运用不足等一系列问题。由于这些原因，杂草管理方法尤其值得通过杂草区系调查进一步研究。杂草区系是果园生态系统的共同组成部分。一方面，丰富的杂草种类可以增加果园的种群多样性。此前在忠南地区进行了杂草调查。结果表明，果园田共鉴定出26科75种杂草，其中棘球藻(Echinochloa cross -galli)是最具优势的高密度杂草(Choi et al.， 2009a)。此外，Park et al.(2005)报道，与十年前的报道相比，果园中杂草的优势度排名发生了变化。另一方面，杂草给桃树带来了一些严重的不利影响。这些负面影响主要分为环境效应和生物效应。环境影响可能意味着杂草和桃树之间争夺光、水和养分(MacRae et al.， 2007)。桃树产量、砧木和叶片受到杂草竞争的影响(Tworkoski和Glenn, 2001)。相反，术语“生物效应”可能意味着杂草物种是已知的有利宿主。本研究在2015年进行了两次调查，以监测韩国桃园的杂草发生情况，并确定最麻烦的杂草。首次调查共鉴定出23科56个分类群，其中一年生植物27个，二年生植物11个，多年生植物18个。根据重要性值，第一次调查(4 ~ 6月)优势杂草为加拿大Conyza(5.12%)、车前草(4.17%)和三叶草(3.86%)。首次调查共鉴定出17种外来杂草，包括Conyza canadensis、Trifolium repens和Chenopodium ficifolium。第二次调查(9 ~ 10月)共鉴定出19科42株杂草，其中一年生23株，二年生5株，多年生14株。从重要性值看，毛Digitaria ciliaris(8.00%)是最优势杂草，其次是刺槐(6.61%)和刺草(6.48%)。外来杂草有蒲公英(Taraxacum officinale)、芦笋(Rumex crispus)、三叶草(Trifolium repens)等12种。此外，根据布朗-布朗凯量表，两次调查的优势值均为一级(分别为41.98%和46.43%)。目前，被调查桃园中有40%的果园使用除草剂进行除草。这些结果可为果园工作者选择最适宜的杂草管理方法提供基础数据;从而减少劳动力投入，有效降低成本，同时提高韩国桃园的果实产量。
{"title":"Weed Flora and Management Practices in Peach Orchard Fields in Korea","authors":"Weiqian Jia, K. Hwang, O. Won, In‐Yong Lee, Jeongran Lee, Suk-Won Roh, K. Park","doi":"10.5660/WTS.2017.6.2.109","DOIUrl":"https://doi.org/10.5660/WTS.2017.6.2.109","url":null,"abstract":"In Korea, fruit represents one of the main categories of economic crops. The country’s fruit tree planted area was 155,000 ha in 2005, which is seven times larger than the acreage of orchards in 1955 (Ha and Chung, 2012). In particular, the area planted with peach trees has increased by around 3%, from 13,908 ha in 2011 to 14,210 ha in 2012. The yield of peaches ranked forefront in all fruits (Hong et al., 2012). In the face of the progressive increase in peach tree area, a series of problems have emerged in peach orchards, such as labor shortages, lagging product sales, and insufficient use of science-based management technologies. For these reasons, weed management methods are especially worthy of further study through surveys of weed flora. Weed flora is a common component of orchard ecosystems. On the one hand, an abundance of weed species can increase population diversity in orchards. A previous survey of weeds was carried out in the Chungnam region; its results showed that 75 weed species belonging to 26 families were identified in orchard fields and that Echinochloa crus-galli was the most dominant of the weed species with high densities (Choi et al., 2009a). Additionally, Park et al. (2005) reported that weed ranking in orchards according to dominance had changed compared to that reported a decade ago. On the other hand, weeds bring about some serious adverse effects for peach trees. These negative impacts are mainly divided into environmental and biotic effects. Environmental effects can mean competition for light, water, and nutrients between weeds and peach trees (MacRae et al., 2007). Peach tree yields, rootstock, and leaves are affected by weed competition (Tworkoski and Glenn, 2001). In contrast, the term ‘biotic effects’ can imply that weed species are known favorable hosts ABSTRACT. This study was carried out two surveys in 2015 to monitor weed occurrence and determine the most troublesome weeds in peach orchards of Korea. The first survey identified 56 taxa belonging to 23 families including 27 annuals, 11 biennials, and 18 perennials. Based on importance values, Conyza canadensis (5.12%), Plantago asiatica (4.17%), and Trifolium repens (3.86%) were the dominant weeds in the first survey (from April to June). Seventeen exotic weeds were identified in the first survey, including Conyza canadensis, Trifolium repens, and Chenopodium ficifolium. The second survey (from September to October) identified 42 weeds belonging to 19 families including 23 annuals, 5 biennials, and 14 perennials. According to importance values, Digitaria ciliaris (8.00%) was the most dominant weed, followed by Echinochloa utilis (6.61%) and Rorippa palustris (6.48%). There were 12 exotic weeds, including Taraxacum officinale, Rumex crispus, and Trifolium repens. Additionally, according to Braun-Blanquet’s scale showed that the dominance value was level 1 (41.98% and 46.43%, respectively) in two surveys. Currently, 40% of the total surveyed peach orchards appl","PeriodicalId":23804,"journal":{"name":"Weed&Turfgrass Science","volume":"38 1","pages":"109-116"},"PeriodicalIF":0.0,"publicationDate":"2017-06-30","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"86820031","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
. Insect pests have been one of the main constraints affecting turf sod cultivation areas, playgrounds, parks, golf courses, airports and other related recreational grounds. However, turfgrass research has been very limited and confined within a limited period of time compared to other branches of crop science in Korea. This review was surveyed from all papers in KCI (Korea Citation Index), SCI (Scientific Citation Index) and SCIE (SCI Expended) journals related to turfgrass research in Korea. Fifty two papers concerning turfgrass insect pest in Korea have hitherto been published in 8 different scientific journals since 1990. Thirty papers in Weed Turfgrass Science. main topics of focus divided into two parts; ecological study and control of insect in relation to turfgrass insect pest 14 papers were published respectively in Weed and Turfgrass Science. From 1997, about 2 papers were published per year in the scientific journals. Thirty three insect pest species belonging to 13 families in 6 orders, one Eriophyidae mite, Aceria zoysia and one Armadillidae sowbug, Armadillidium vulgare, have hitherto been listed as turfgrass arthropod pests in Korea. Fifty percent of turfgrass insect pest papers published were focused on whitegrub, Adoretus tenuimaculatus , Popillia quadrigutta and earthworm research in Korea.
{"title":"Research Review on Turfgrass Insect Pests in Korea","authors":"H. Choo, Dong Woon Lee","doi":"10.5660/WTS.2017.6.2.77","DOIUrl":"https://doi.org/10.5660/WTS.2017.6.2.77","url":null,"abstract":". Insect pests have been one of the main constraints affecting turf sod cultivation areas, playgrounds, parks, golf courses, airports and other related recreational grounds. However, turfgrass research has been very limited and confined within a limited period of time compared to other branches of crop science in Korea. This review was surveyed from all papers in KCI (Korea Citation Index), SCI (Scientific Citation Index) and SCIE (SCI Expended) journals related to turfgrass research in Korea. Fifty two papers concerning turfgrass insect pest in Korea have hitherto been published in 8 different scientific journals since 1990. Thirty papers in Weed Turfgrass Science. main topics of focus divided into two parts; ecological study and control of insect in relation to turfgrass insect pest 14 papers were published respectively in Weed and Turfgrass Science. From 1997, about 2 papers were published per year in the scientific journals. Thirty three insect pest species belonging to 13 families in 6 orders, one Eriophyidae mite, Aceria zoysia and one Armadillidae sowbug, Armadillidium vulgare, have hitherto been listed as turfgrass arthropod pests in Korea. Fifty percent of turfgrass insect pest papers published were focused on whitegrub, Adoretus tenuimaculatus , Popillia quadrigutta and earthworm research in Korea.","PeriodicalId":23804,"journal":{"name":"Weed&Turfgrass Science","volume":"28 1","pages":"77-85"},"PeriodicalIF":0.0,"publicationDate":"2017-06-30","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"80143069","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
Pub Date : 2017-06-30DOI: 10.5660/WTS.2017.6.2.130
Seog-Won Chang, Jeong-Ho Lee, Byeongjin Kwon, J. Hong, Sho-Jun Park, Jae-Bok Byun, Jae-Uk Jee
본 연구에서는 우리나라의 지역별 묘지 잔디 관리 실태를 조사하였다. 인터넷 포털 사이트에 등록된 묘지 관리 대행 업체, 산림조합중앙회, 농협(단위 농협)으로부터 묘지관리에 대한 정보를 직접 받거나 설문을 통해 자료를 얻은 다음 정리, 분석하였다. 조사한 모든 지역에서 개인 및 가족 묘지는 $66m^2$ (20 평)을 기...
{"title":"Survey of Current Status of the Graveyard Lawn Maintenance in Korea","authors":"Seog-Won Chang, Jeong-Ho Lee, Byeongjin Kwon, J. Hong, Sho-Jun Park, Jae-Bok Byun, Jae-Uk Jee","doi":"10.5660/WTS.2017.6.2.130","DOIUrl":"https://doi.org/10.5660/WTS.2017.6.2.130","url":null,"abstract":"본 연구에서는 우리나라의 지역별 묘지 잔디 관리 실태를 조사하였다. 인터넷 포털 사이트에 등록된 묘지 관리 대행 업체, 산림조합중앙회, 농협(단위 농협)으로부터 묘지관리에 대한 정보를 직접 받거나 설문을 통해 자료를 얻은 다음 정리, 분석하였다. 조사한 모든 지역에서 개인 및 가족 묘지는 $66m^2$ (20 평)을 기...","PeriodicalId":23804,"journal":{"name":"Weed&Turfgrass Science","volume":"30 1","pages":"130-135"},"PeriodicalIF":0.0,"publicationDate":"2017-06-30","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"91294918","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
Pub Date : 2017-06-30DOI: 10.5660/WTS.2017.6.2.136
Jong Ju Kim, C. Lee, Young Hack Chung, Eun-Ji Bae, Gwa Soo Lee, H. Choo, Byung-guan Jeon, Dong Woon Lee
Damage of Zoysiagrass Mite, Aceria zoysiae on Different Species and Individuals of Turfgrass from Korea with Reference to Turfgrass Genetic Resources Conservation Area Jong Ju Kim1, Chae Min Lee2, Young Hack Chung3, Eun-Ji Bae4, Gwang Soo Lee4, Ho Yul Choo1, Byungduk Jeon5, and Dong Woon Lee6* Department of Applied Biology, Gyeongsang National University, Jinju 52828, Korea Korea Forestry Promotion Institute, Daejeon 35209, Korea SM Bio Co, Jinju 52828, Korea Southern Forest Resource Research Center, Korea Forestry Research Institute, Jinju, 52817, Korea Department of Physical Education Leisure, Suseong College, Daegu 42078, Korea Major of Applied Biology, School of Ecological Environment and Tourism, Kyungpook National University, Sangju 37224, Korea
{"title":"Damage of Zoysiagrass Mite, Aceria zoysiae on Different Species and Individuals of Turfgrass from Korea with Reference to Turfgrass Genetic Resources Conservation Area","authors":"Jong Ju Kim, C. Lee, Young Hack Chung, Eun-Ji Bae, Gwa Soo Lee, H. Choo, Byung-guan Jeon, Dong Woon Lee","doi":"10.5660/WTS.2017.6.2.136","DOIUrl":"https://doi.org/10.5660/WTS.2017.6.2.136","url":null,"abstract":"Damage of Zoysiagrass Mite, Aceria zoysiae on Different Species and Individuals of Turfgrass from Korea with Reference to Turfgrass Genetic Resources Conservation Area Jong Ju Kim1, Chae Min Lee2, Young Hack Chung3, Eun-Ji Bae4, Gwang Soo Lee4, Ho Yul Choo1, Byungduk Jeon5, and Dong Woon Lee6* Department of Applied Biology, Gyeongsang National University, Jinju 52828, Korea Korea Forestry Promotion Institute, Daejeon 35209, Korea SM Bio Co, Jinju 52828, Korea Southern Forest Resource Research Center, Korea Forestry Research Institute, Jinju, 52817, Korea Department of Physical Education Leisure, Suseong College, Daegu 42078, Korea Major of Applied Biology, School of Ecological Environment and Tourism, Kyungpook National University, Sangju 37224, Korea","PeriodicalId":23804,"journal":{"name":"Weed&Turfgrass Science","volume":"36 1","pages":"136-150"},"PeriodicalIF":0.0,"publicationDate":"2017-06-30","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"88452069","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
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