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Mulberry popcorn disease occurrence in Korea region and development of integrative control method
Ju, Wan-Taek,Kim, Hyun-Bok,Sung, Gyoo-Byung,Park, Kwang-Young,Kim, Yong-Soon Korean Society of Sericultural Science 2016 International Journal of Industrial Entomology Vol.33 No.1
Mulberry fruits also have tremendous potential for providing various valuable industrial products of very high economic value for human beings. Nevertheless, through global warming, the popcorn disease caused by sclerotia forming fungi reduces the productivity of mulberry fruits in worldwide. So, in this study, we investigated damage ratio of mulberry popcorn disease in mulberry fruit production farm (Buan, Jeongueb, Sangju, Gochang in Korea). In Jeonbuk Buan, popcorn disease rate was the highest about 30%, on the other hand, in case of Gyungbuk Sangju and Jeonbuk Gochang, not damage. Also, we investigated about popcorn disease prevention by various of chemical treatment methods.
Mulberry popcorn disease occurrence in Korea region and development of integrative control method
주완택,김현복,성규병,박광영,김용순 한국잠사학회 2016 International Journal of Industrial Entomology Vol.33 No.1
Mulberry fruits also have tremendous potential for providing various valuable industrial products of very high economic value for human beings. Nevertheless, through global warming, the popcorn disease caused by sclerotia forming fungi reduces the productivity of mulberry fruits in worldwide. So, in this study, we investigated damage ratio of mulberry popcorn disease in mulberry fruit production farm (Buan, Jeongueb, Sangju, Gochang in Korea). In Jeonbuk Buan, popcorn disease rate was the highest about 30%, on the other hand, in case of Gyungbuk Sangju and Jeonbuk Gochang, not damage. Also, we investigated about popcorn disease prevention by various of chemical treatment methods.
Mulberry popcorn disease occurrence in Korea region and development of integrative control method
( Wan-taek Ju ),( Hyun-bok Kim ),( Gyoo-byung Sung ),( Kwang-young Park ),( Yong-soon Kim ) 한국잠사학회 2016 International Journal of Industrial Entomology Vol.33 No.1
Mulberry fruits also have tremendous potential for providing various valuable industrial products of very high economic value for human beings. Nevertheless, through global warming, the popcorn disease caused by sclerotia forming fungi reduces the productivity of mulberry fruits in worldwide. So, in this study, we investigated damage ratio of mulberry popcorn disease in mulberry fruit production farm (Buan, Jeongueb, Sangju, Gochang in Korea). In Jeonbuk Buan, popcorn disease rate was the highest about 30%, on the other hand, in case of Gyungbuk Sangju and Jeonbuk Gochang, not damage. Also, we investigated about popcorn disease prevention by various of chemical treatment methods.
오디 생산용 뽕나무에 발생하는 균핵병과 뽕나무이의 약제 방제체계
최민경,김주희,장수지,전형권 한국식물병리학회 2019 식물병연구 Vol.25 No.4
From our field investigation from 2017 to 2018, five diseases and four insect pests have been identified as the primary biotic stressors of fruit-producing mulberry, which include popcorn disease and mulberry sucker, respectively. In this study, we examined the relative control effects of selected agro-chemicals against the popcorn disease and mulberry sucker. Our systemic treatment methods to simultaneously control the popcorn disease and the mulberry sucker indicated that an integrated control method showed a superior result with the control efficacy of 89.3%, while a conventional control method resulted in 66.7%. As a result, we concluded that it is much efficient to control both disease and insect pest in mid-April while sequentially applying chemicals only for the popcorn disease from February. By considering the ecological aspects of the popcorn disease and mulberry sucker, this systemic treatment will be able to reduce the labor of growers required for the control.
Breeding of mulberry variety “Shimgang” showing resistance to popcorn disease
( Sung Gyoo Byung ),( Seo Sang Deog ),( Kim Yong Soon ),( Ju Wan Taek ),( Kim Hyun Bok ),( Kim Kee Young ) 한국잠사학회 2016 International Journal of Industrial Entomology Vol.33 No.2
We bred a mulberry cultivar named Shimgang, through local adaptability test, which is under registration as a new cultivar for fruit production. Local adaptability test had been carried out at four local places(Suwon, Chuncheon, Buan and Jinju) for five years from 2011. This variety `Shimgang` belongs to Morus Microphylla Buckl. selected from seedlings imported from USA. Shimgang was resistant to popcorn disease and high yielding variety in fruit productivity by 111% compared to control cultivar `Shimheung(Morus alba L.)` for three years. Although fruits of `Shimgang` was smaller in size and lower in sugar content of mulberry fruits, it showed stronger resistance than that of `Shimheung`. It is adaptable to every where except the places where cold and late frost damage happen frequently.
천연 식물추출물 복합제를 이용한 오디균핵병 및 뽕나무이에 대한 친환경 방제기술 개발
안인 ( In Ahn ),맹운영 ( Woon Young Maeng ),이인애 ( In Eae Lee ),김삼현 ( Sam Hyun Kim ),유지원 ( Ji Won You ),장기운 ( Ki Woon Chang ),김배용 ( Bae Yong Kim ) 한국환경농학회 2013 한국환경농학회지 Vol.32 No.4
BACKGROUND: Two Field tests were conducted at Buan and Yangpyung in 2012 and 2013 to confirm controlling effect of mulberry popcorn disease and mulberry Sucker pests which are becoming serious in mass cultivation area of eco-friendly farming mulberry. METHODS AND RESULTS: As the treatments, 4 Natural products and 3 microbials were applied and 4 mulching materials were used. On the prevent effect of mulberry popcorn disease (Sclerotinia shiraiana) by using mulching materials, nonwoven fabric mulching showed worse effect than non-mulched treatment plot. Moreover, rice straw mulching showed significantly worse effect compare to nonwoven fabric and herb mulching treatments. Natural plant extracts and microbials showed 40∼65% control value in 2013, which is little bit worse than 2012 results. On the control effect of mulberry Sucker (Amomoneura mori), organic products which combined with neem, sophora and derris showed excellent result as similar control level of Thiophanate-methyl. It means the chemical products can be replaced with organic product. CONCLUSION(S): According to the 2 years studied results, integrate eco-friendly farming measures are recommended for control of mulberry popcorn disease, because any single method is seemed not sufficient enough. However, natural plant extracts mixture is recommended as a product to control of mulberry Sucker.
Razia Sultana1,주호종,채종찬,김강민,이귀재 한국식물병리학회 2013 식물병연구 Vol.19 No.4
The popcorn disease caused by sclerotia forming fungi reduces the productivity of mulberry fruits in worldwide. In Korea, only two species (Ciboria shiraiana and Scleromitrula shiraiana) have been reported as themajor causal organisms and their morphological features are also largely unknown. Hereby, we report thefirst identification of another species (i.e. Ciboria carunculoides) in Korea and detailed features of theiranamorphic stage. Fungi dominantly associated with sclerotia were purely isolated from infected mulberryfruits under the microscope. PCR-amplified DNA encoding 5.8S rRNA displayed 100% similarity to Ciboriacarunculoides. The anamorphic features exhibited the absence of true mycelia. Instead, very short, aseptated,branched conidiophores were directly emerged from sclerotia. Phialides were usually three in number fromeach conidiophore, ampuliform to navicular in shape, slightly curved and tapering towards the apex. Conidiawere produced from phialides and mostly found as one celled, pear shaped, not hyaline with smooth touneven surface walled. Diversely modified features in phialides formed pseudo-mycelial structures aroundthe host tissue. Combined all, current study is the first report of C. carunculoides isolated in Korea and theforemost detailed description of its anamorph stage.
Sultana, Razia,Ju, Ho-Jong,Chae, Jong-Chan,Kim, Kangmin,Lee, Kui-Jae The Korean Society of Plant Pathology 2013 식물병연구 Vol.19 No.4
The popcorn disease caused by sclerotia forming fungi reduces the productivity of mulberry fruits in world wide. In Korea, only two species (Ciboria shiraiana and Scleromitrula shiraiana) have been reported as the major causal organisms and their morphological features are also largely unknown. Hereby, we report the first identification of another species (i.e. Ciboria carunculoides) in Korea and detailed features of their anamorphic stage. Fungi dominantly associated with sclerotia were purely isolated from infected mulberry fruits under the microscope. PCR-amplified DNA encoding 5.8S rRNA displayed 100% similarity to Ciboria carunculoides. The anamorphic features exhibited the absence of true mycelia. Instead, very short, aseptated, branched conidiophores were directly emerged from sclerotia. Phialides were usually three in number from each conidiophore, ampuliform to navicular in shape, slightly curved and tapering towards the apex. Conidia were produced from phialides and mostly found as one celled, pear shaped, not hyaline with smooth to uneven surface walled. Diversely modified features in phialides formed pseudo-mycelial structures around the host tissue. Combined all, current study is the first report of C. carunculoides isolated in Korea and the foremost detailed description of its anamorph stage.
Breeding of mulberry variety “Shimgang” showing resistance to popcorn disease
성규병,서상덕,김용순,주완택,김현복,김기영 한국잠사학회 2016 International Journal of Industrial Entomology Vol.33 No.2
We bred a mulberry cultivar named Shimgang, through local adaptability test, which is under registration as a new cultivar for fruit production. Local adaptability test had been carried out at four local places(Suwon, Chuncheon, Buan and Jinju) for five years from 2011. This variety ‘Shimgang’ belongs to Morus Microphylla Buckl. selected from seedlings imported from USA. Shimgang was resistant to popcorn disease and high yielding variety in fruit productivity by 111% compared to control cultivar ‘Shimheung(Morus alba L.)’ for three years. Although fruits of ‘Shimgang’ was smaller in size and lower in sugar content of mulberry fruits, it showed stronger resistance than that of ‘Shimheung’. It is adaptable to every where except the places where cold and late frost damage happen frequently.
김호철(Ho Cheol Kim),김태춘(Tae-Choon Kim) 한국원예학회 2015 원예과학기술지 Vol.33 No.6
This study was conducted to identify the air temperature factors that affect leafing date of mulberry (Morus alba) in Buan, Jeonbuk province. Over the period from 2009 to 2014, the leafing date averaged April 24 (114 Julian days). The earliest leafing date was April 12, in 2014, and the latest leafing date was May 2, in 2011. Yearly variations of daily mean temperature (DMT) and daily maximum temperature (DMxT) were high in the last part of March. There were highly negative correlations between leafing date and degree days of accumulated DMT above 0, 5, and 10°C in the period from March 1 to April 10. Linear regression equations for estimating the leafing date were y = 153.8 - 0.1886 x (r² = 0.965<SUP>**</SUP>) and y = 126.2 - 0.2246 x (r² = 0.825<SUP>*</SUP>) for the degree days of accumulated DMT above 5℃ in the period from March 1 to April 10 and the last part of March, respectively. Therefore, leafing date of mulberry, which is important for popcorn disease control, is 96.5% predicted by degree days of accumulated DMT above 5℃ in the periods from March 1 to April 10.