• Title/Summary/Keyword: 고추 탄저병

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고추 탄저병 역병 방제 "포인트"는 무엇인가?

  • 조의규
    • The Bimonthly Magazine for Agrochemicals and Plant Protection
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    • v.7 no.3
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    • pp.92-96
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    • 1986
  • 고추에 피해를 주고 있는 병으로 잎오갈병, 더뎅이병, 탄저병, 역병등 19종이 우리나라에 보고 되어 있다. 이러한 고추의 병해를 병원균별로 보면 담배모자이크바이러스등 바이러스가 5종, 더뎅이병균등 세균이 3종이 있으며 곰팡이는 역병균등 14종이 고추에 병을 일으키고 있다. 이와같은 고추병들이 고추에 피해를 주고 있지만 그중에서도 특히 고추를 이어짓기 하는 밭이나 비닐하우스에서 고추의 작황을 좌우하는 것은 대부분이 역병에 의한 피해이다. 역병의 피해는 물론 고추를 이어짓기함으로써 토양 전염되는 역병균의 전염원이 매년 증가하기 때문이기도 하지만 역병이 발생하기 쉬운 여름철에 장마가 겹치므로 물빠짐이 나빠지거나 침수가 되기 때문에 피해가 증가하는 요인이 되고 있다.

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Yield Loss Assessment and Determination of Control Thresholds for Anthracnose on Red Pepper (고추 탄저병 발생에 따른 수량변화와 방제수준 설정)

  • Kim, Ju-Hee;Cheong, Seong-Soo;Lee, Ki-Kwon;Yim, Ju-Rak;Choi, Sun-Woo;Lee, Wang-Hyu
    • Research in Plant Disease
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    • v.21 no.1
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    • pp.6-11
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    • 2015
  • This study was carried out to develop control thresholds for anthracnose on red pepper. To investigate relationship between anthracnose incidence and diseased fruits, experimental plots with six treatments were established. There existed close correlation between rate of diseased fruits and yields in field (Y = -16.83X + 327.57, $R^2=0.83$), in rain shelter (Y = -4.92X + 361.02, $R^2=0.84$), and in rain shelter with rain (Y = -5.91X + 359.71, $R^2=0.76$). Control thresholds for anthracnose of pepper were 0.9% diseased fruits per plant in field and from 1.7 to 2.3% diseased fruits rate per plant in rain shelter.

채소작물 병해방제 집중탐구 (6) 고추 - 고추농사 풍$\cdot$흉 좌우하는 역병과 탄저병

  • 김충회
    • The Bimonthly Magazine for Agrochemicals and Plant Protection
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    • v.13 no.3 s.108
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    • pp.98-105
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    • 1992
  • 고추에 발생하는 병해는 우리나라에 18여종이 있다. 그중에서 가장 중요한 병해는 두말할 나위없이 역병과 탄저병일 것이다. 세균성점무늬병(반점세균병)과 바이러스병(모자이크병, 괴저병)도 문제가 되고 있으나 앞의 두 병해에 비하면 발생도 국부적이고 피해도 훨씬 가볍다고 할 수 있다. 이 네가지 병해는 우리나라 고추 주산단지의 연작 장해현상과 밀접한 관련을 가지며 연작에 의하여 발병이 심화되는 대표적인 병해다. 이밖에도 고추에는 잿빛곰팡이병, 균핵병, 흰가루병등의 공기전염성 병해들이 시설재배지의 특수환경과 관련하여 점차 발생이 늘어나는 추세에 있다. 여기에서는 고추에서 가장 문제가 되고 있고 농민들이 방제에 큰 어려움을 겪고 있는 역병과 탄저병에 대하여 그 효과적인 방제대책을 알아본다.

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A Study on the Image Analysis Technique for the Precision Exploration of Chili Anthracnose (고추 탄저병 정밀 탐색을 위한 영상분석 기술에 대한 연구)

  • Baek, JeongHo;Kim, Nyunhee;Lee, Eungyeong;Lee, Hongseok;Kim, Song Lim;Park, Sang Ryeol;Ji, Hyeonso;Choi, Inchan;Kim, Kyung-Hwan
    • Journal of Korea Society of Industrial Information Systems
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    • v.25 no.5
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    • pp.73-81
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    • 2020
  • One of the most important vegetables consumed in Korea, chili peppers (Capsicum annuum) are widely cultivated around the world. Chili peppers have been severely damaged by anthracnose during their growth, so it is important to study prevention and resistance varieties. K1 anthracnose was inoculated against four cultivar of chili peppers that are resistant to anthracnose and one cultivar that is sensitive. The area of the disease that appeared over time was photographed and quantified through the program was analyzed. Through the ratio of the area of chili pepper fruit and the area of the bottle, the sensitive variety An-S showed weak reactions to anthracnose with about 40%, the resistant variety An-12R (23%), An-Tan (21%), and An-9R (19%), and PBC81 showed a strong response to anthracnose with about 11%. These quantitative value can be used as a basis for comparison in conducting resistance studies for new varieties.

Occurrence and Ecological Characteristics of Red Pepper Anthracnose (고추 탄저병의 발병 생태 특성)

  • Kwon, Cheon-Sub;Lee, Soon-Gu
    • Research in Plant Disease
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    • v.8 no.2
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    • pp.120-123
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    • 2002
  • Occurrence of anthracnose on red pepper fruit was examined at 6 red pepper-growing regions including Yecheon, Andong, Euisong, Cheongsong, and Ponghwa in Kyungbuk province, Korea in 1999. The disease occurred firstly June 13 at Cheongsong, progressed gradually thereafteri and increased rapidly from late August. The average disease incidence with mid September was 30.4%. There was no significant difference in disease incidence among the regions examined. Correlation coefficient analysis of the disease incidence with weather factors revealed that it was significantly related to relative humidity, precipitation, rainy days, and duration of continuous rainy days. Most fungal isolates from the diseased fruit were Colletotichum gloeosporioides. In the in field experiment, unmature fruit was somewhat more susceptible to the disease than mature fruit. In the field experiment, the disease occurred severely in open fields, having the disease incidence of 12.1%; however, no disease was observed in the rain-proof fields. The anthracnose on red pepper fruit developed earlier and more severely in the successive cropping field with red pepper than the field having other crops. Removal of infected plant debris also delayed and reduced the disease occurrence, suggesting that plant debris infested with the anthracnose fungus serve as a primary inoculum source which may govern the severity of the disease in the field.

Control Efficacy of Bordeaux Mixture against Pepper Anthracnose (고추 탄저병에 대한 보르도액의 방제 효과)

  • Park, Se-Jung;Lee, Soo-Min;Gwon, Hyeon-Wook;Lee, Hotaek;Kim, Heung Tae
    • The Korean Journal of Pesticide Science
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    • v.18 no.3
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    • pp.168-174
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    • 2014
  • It was conducted to evaluate the control efficacy of Bordeaux mixture on pepper anthracnose in vitro and in vivo. The suppressive efficacy of Bordeaux mixture on mycelial growth and spore germination of Colletotrichum acutatum was investigated on PDA, cellophane membranes and pepper fruits, respectively. Furthermore, its control value was evaluated on detached pepper fruits inoculated with C. acutatum by wound and non-wound inoculation method, and in fields. The mycelial growth of C. acutatum JC24 was inhibited by 90.0% on PDA amended with $937{\mu}g\;mL^{-1}$ of Bordeaux mixture. While the spore germination of C. acutatum JC24 was inhibited perfectly on cellophane membranes treated at $187{\mu}g\;mL^{-1}$ of Bordeaux mixture, that on fruits inoculated with the pathogen by wound inoculation and non-wound inoculation method was inhibited by 88.1% and 91.3%, respectively. Although the control value on fruits treated with $937{\mu}g\;mL^{-1}$ of Bordeaux mixture was 17.6% in wound inoculation method, it was 58.8% in non-wound inoculation method. In fields, when Bordeaux mixture was sprayed five times at 14 day-intervals, it showed 55.7% and 61.7% of control value in 2012 and 2013, respectively. We think Bordeaux mixture was able to use as an eco-friendly organic farming material to control pepper anthracnose based on the above-mentioned results.

Impact of Climate Change on Fungicide Spraying for Anthracnose on Hot Pepper in Korea During 2011-2100 (한국의 2011-2100년 기후변화가 고추 탄저병 살균제 살포에 미치는 영향)

  • Shin, Jeong-Wook;Yun, Sung-Chul
    • Korean Journal of Agricultural and Forest Meteorology
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    • v.13 no.1
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    • pp.10-19
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    • 2011
  • In order to predict the risk of anthracnose on hot pepper in the future, the projected climate data from SRES A1B scenario in South Korea were used with the modified anthracnose model to calculate Infection Risk (IR), which was to estimate the number of fungicide sprays. Based on daily temperature and precipitation, the anthracnose model resulted in an empirical relationship that IR = (Daily temperature - $16^{\circ}C$) ${\times}$ 0.07 + (Daily precipitation ${\times}$ 0.11). For 135 locations in South Korea, the total number of fungicide sprays needed from 2011 to 2100 was 12,150, indicating a complicated change with an overall increase in anthracnose development in all locations until 2100. In particular, radical changes in anthracnose development were predicted at Yeongdeok, Yeongyang, and Uiseong, whereas gradual changes were predicted at Heongsung, Hamyang and Taean. The eastern counties of Gyeongbuk Province, which ar the major plantation area in these days, would be the place with the highest disease pressure in the future. In addition, the years of 2058, 61, 78 and 2096 will be most severe, requiring 8-11 times of fungicide spraying. The GIS maps show that the mountain areas of Jeonbuk and Chungbuk Province would have the least disease pressure of anthracnose in the future.

Control Effects of 3-(4-Hydroxyphenyl)-propionic Acid Isolated Xenorhabdus nematophila K1 against Phytophthora Blight and Anthracnose of Red Pepper (Xenorhabdus nematophila K1 대사물질 3-(4-hydroxyphenyl)-propionic acid의 고추 역병과 탄저병에 대한 방제 효과)

  • Cheon, Wonsu;Kim, Doyeon;Kim, Yonggyun;Hong, Yong Pyo;Yi, Youngkeun
    • Research in Plant Disease
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    • v.19 no.3
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    • pp.208-215
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    • 2013
  • 3-(4-Hydroxyphenyl)-propionic acid (HPP) is a bacterial metabolite synthesized and released by an entomopathogenic bacterium Xenorhabdus nematophila K1. In this study, the control efficacy of HPP was tested against Phytophthora blight and anthracnose of red pepper plants. HPP suppressed mycelial growth of Phytophthora blight and anthracnose pathogens. Under natural sunlight condition, HPP maintained the antifungal activity on the diseases for at least twenty five days. The antifungal activity was not decreased even in the condition of soil-water. It was proved that HPP was able to penetrate the roots and travel upward of the red pepper plants. When HPP suspension was applied to soil rhizosphere before transplanting the red pepper seedlings or was regularly sprayed to the foliage of the plants with ten days interval, it resulted in significant reduction of the disease occurrences (Phytophthora blight and anthracnose) without any phytotoxicity. These results suggested that HPP can be developed to a systemic agrochemical against Phytophthora blight and anthracnose of red pepper plants.

Selection of Antifungal Bacteria Burkholderia lata CAB13001 for Control on Red Pepper Anthracnose and Its Control Efficacy in Field (고추 탄저병 방제제 Burkholderia lata CAB13001 선발 및 포장방제 효과)

  • Hahm, Soo-Sang;Kim, Byung-Ryun;Kwon, Mi-Kyung;Han, Kwang-Seop;Park, In-Hee;Seo, Kyung-Won
    • Korean Journal of Organic Agriculture
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    • v.26 no.4
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    • pp.649-660
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    • 2018
  • To control the pepper anthracnose caused by Colletotrichum acutatum, antifungal bacterium strains which was selected among bacterium from natural soil, was tested the antimicrobial activity against various pathogens and its control efficacy on anthracnose disease in the fields. We confirmed that antagonistic activity of CAB13001 strain to pathogens such as Sclerotinia cepivorum, Sclerotinia sclerotium and Botrytis cinerea including Colletotrichum acutatum was remarkable superior with the dual culture method in the artificial medium. In vitro bioassay using the green pepper fruit, CAB13001 strain suppressed the lesion development of Anthracnose disease, and its control value compared to the untreated one was 82.4% on pepper fruit in field test. These results suggested that CAB13001 strain could be a very useful biological control agents to anthracnose disease caused by air born plant pathogens of pepper. By the way, analysis of nucleotide sequence of the gene 16S rDNA, antagonistic bacterium CAB13001 strain used in this study was identified as Burkholderia lata.

Effect of Polyvinyl Tunnel after Mulching on the Occurrence of Phytophthora Blight and Anthracnose of Red Pepper (비닐터널 유인재배가 고추 역병과 탄저병의 발생에 미치는 효과)

  • Cheong, Seong-Soo;Kim, Ju-Hee;Choi, Dong-Chil
    • Research in Plant Disease
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    • v.16 no.1
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    • pp.106-108
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    • 2010
  • This survey was conducted to investigate effect of covering with polyvinyl ($120{\times}90cm$) on incidence of Phytophthora blight and anthracnose and growth. Early growth of pepper plant was superior when was covered with polyvinyl after planting. Incidence of anthracnose and Phytophthora blight was lower 26.9% and 60.3% in covering system than those in conventional culture system, respectively. A yield of dried red pepper was more 48.5% in cultured with covering system than that in conventional culture system.