• Korean Journal of Organic Agriculture
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• v.22 no.2
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• pp.269-280
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• 2014

This study was performed to test the insecticidal and antimicrobial activity of plant extracts from clove, Sophora flavescens Aiton and neem. As the result of antimicrobial activity test, clove extract showed the strongest activity against Botrytis cinerea. In insecticidal activity test, the extract of Sophora flavescens Aiton was the highest against Nilaparvata lugens. The pyroligneous liquor (10%) and emulsified spreader (10%) were added to the extracts of clove and Sophora, respectively, to apply the environment-friendly rice field. In the field treated clove extract, disease damage occurred 49.1% and insect damage occurred 29.5% compared to control plot (100%). In the field treated Sophora extract, disease damage was 56.7% and insect damage was 21.0% compared to control plot (100%). In conclusion, plant extracts from Sophora and clove could control about 50% of disease and about 70% of insect damage that they could be used as environment-friendly resources to control disease and insect in rice farming.

• 농업기술회보
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• v.51 no.3
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• pp.23-24
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• 2014

시설고추는 노지고추와 달리 역병, 탄저병 등의 발생이 거의 없어 해충관리만 잘하면 약제사용을 크게 줄일 수 있다. 친환경으로 해충을 관리할 수 있는 방법은 천적곤충을 이용하는 것이며, 그 방법과 효과는 다음과 같다.

• Journal of Bio-Environment Control
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• v.22 no.4
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• pp.413-420
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• 2013

The purpose of this study was to evaluate the control efficacy of major environment-friendly control agents against powdery mildew, as affected by the application condition such as disease-developing stage and microclimate, as compared with the efficacy of pesticides in plug seedling of three Cucurbitaceae vegetables, including cucumber, melon, and oriental melon. Single or combined application of major six environment-friendly control agents was used in the experiment: two biofungicide (Ampelomyces quisqualis 94013 and Bacillus subtilis Y1336), two plant extracts (neem oil and extracts of Rheum undulatum), and two mineral materials (wettable sulfur powder and lime bordeaux mixture). These control agents were treated to the plug seedlings for preventing powdery mildew and curative applications for managing powdery mildew. In all treatments, the disease incidence declined as daily average temperatures increased to $30^{\circ}C$ for consecutive 6~8 days with maximum temperature over $40^{\circ}C$. In preventative application, the control efficacy against powdery mildew was the highest in the treatment of wettable sulfur powder, and lowest in the B. subtilis Y1336, with values of 20~40%. In cucumber seedlings, the preventive single application of neem oil or wettable sulfur powder was more effective than curative application of fungicides, while the control efficacy of these agents was similar to those of fungicides in melon seedlings. The single application of R. undulatum extracts was also effective in preventing the disease for both cucumber and melon seedlings, showing a higher control efficacy than those of biofungicides during seedling stage. The treatment of water spray was not effective and showed a higher disease incidence than the untreated control plot in the oriental melon and melon seedlings. The curative application with environment friendly control agents, after powdery mildew was first detected, could not successfully controlled the disease at the middle stage (5~10% of disease incidence) of disease development. The curative combined application of [R. undulatum extracts (1st application) + wettable sulfur powder (2nd) + neem oil (3rd)] showed the highest control efficacy among the other treatments, with control value over 80% at the early stage (less than 1% of disease incidence) of disease development.

• The Korean Journal of Pesticide Science
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• v.14 no.4
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• pp.401-406
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• 2010

This study was conducted to investigate the control effects of the environmental-friendly materials against major diseases of pear and to elucidate factors related to spore disperse of pear scab and pear rust. Spore disperse was deeply related ambient temperature in the early stage of disease occurrence and the maximum spore disperse was affected greatly by the air humidity, Percent of infected leaves of pear scab in plot treated with Trichoderma harzianum-YC459 was 29.3% and 43.3% in plot treated with Sulfur-80%. Two formulations above-mentioned were less effective to control pear scab than the chemical pesticide, hexaconazole. Control effect in plots single- and mixed-treated with Trichoderma harzianum-YC459, Sulfur-80% and hexaconazole against pear scab were compared with that in plot treated with chemicals by conventional application schedule in pear orchard. The incidence of pear scab was lower in plot treated with the environmental-friendly materials than that of untreated plot. However there was no significant difference among the treatments at the 5% level. Application of Sulfur-80% reduced significantly the incidence of pear scab (7.8%) compared to that (10.3%) in plot treated by conventional application schedule in organically cultivated pear orchard. Alternative application of Trichoderma harzianum-YC459 and Sulfur-80% (4.3%) suppressed the incidence of pear rust than that (7.1%) in plot treated by conventional application schedule in organically cultivated pear orchard.

• THE HEALTH and ORGANIC FARMING
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• no.228
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• pp.1-12
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• 2006

학교급식,"친환경유기농 식단"이 대안/어린애들의 성조숙증에 경악하며/우리의 산야초/규산질비료에 대하여/벼 멀칭재배의 이론과 기술/"아이에게 과자 주느니 담배를 권하라"/노화의 주범, 활성산소를 없애자/아이들건강과 먹을거리 패러다임의 전환/아태 유기농업현황/"유기식품촉진 제도정비 절실"/두가지 비료로 유기농작물의 고품질 다수확 생산을 체계적으로 보다 쉽게 하는 방법/친환경 농산물 대량 소비처 발굴/벼 육묘시 발생하는 병해들/장마철,작물의 탄저병 방제/봉화 소천 친환경농업인/"유기농.축산자재 검증.인증"심포지엄/국내외 친환경농축산물의 생산 및 인증 실태/해충의 습성을 이용한 퇴치/6월중 새식구 명단/제주농업,몽골 땅에 유기농생산기지 건설/'06년도 경북도지부 지회장단 연찬회 개최/소비자 유기농업 교육 및 현장체험 행사/유기 및 일반 농산물의 품질 비교에 환한 연구/한국유기농업학회,친환경 유통.소비확대 방안 심포지엄/친환경농업 교과서 수록해야/전남여성농업인'친환경 실천대회'/당도진단/농촌진흥청,'친환경농자재 공시제 추진'

• Korean Journal of Organic Agriculture
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• v.22 no.1
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• pp.115-127
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• 2014

This study was conducted to select environmental friendly organic materials for controlling the main disease of Yuzu (Citrus junos Sieb). Meloanose caused by Phomopsi scitri and Scab caused by Elsinoe fawettii are the most common disease in Yuzu. In this study, of which Meloanose disease severity was severe at late of June corresponded with high humidity due to frequent rainfall at that time. In addition, occurrence of two disease have shown in old tree than young. After processing with environmental friendly organic materials, reduction of disease severity was 51~73% and 41~75% in case of Meloanose and scab, respectively. Based on result, environmental friendly organic materials tested in this study may source for controlling both Meloanose and scab diseases on Yuzu.

• 농업기술회보
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• v.45 no.3
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• pp.26-27
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• 2008

• THE HEALTH and ORGANIC FARMING
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• no.222
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• pp.1-12
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• 2006

병술년 새해엔 풍요와 행복이 충만하길/우리나라 고유의 기농산품을 개발하여 세계화에 진력하자/우리의 산야초/토양검정은 친환경적 토양관리의 첫단계/제4회 친환경 유기농박람회 개최/경주시협의회 정기총회 개최/화천군,친환경농업 활성화대책 포럼개최/천안염암대,자연순환형 유기농.축산업의 발전방향 위한 국제 심포지엄 개최/농림부.환경부공동 제2회 친환경농업대상 시상/무항생제 축산물의 생산기술과 전략/우리조상들이 연구한 물이야기/농림부,농업경영컨설팅 사업 대폭 개선/착각하고 있는 잘못된 웰빙/왜 홍콩으로 가야 했나?/식물을 깨워 저항성을 갖게 하자/엽채류 균핵병 방제/친환경 고품질 오이 다수확재배 하려면?/협회 무농약17호/우수농산물코너/1월중 협회 일정 안내/농산물 인증제도 대폭개선 소비자 혼란방지 위해 6종류에서 3종류로/해충의 습성을 이용한 퇴치/12월중 새식구 명단/협회소식/'줌마렐라'뜬다 유기농 먹고 요가 즐기고/친환경 농산물 생산매뉴얼 발간/모르고 먹은 음식,약을 독으로 만들 수 있어요/지표시비

• THE HEALTH and ORGANIC FARMING
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• no.223
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• pp.1-12
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• 2006

친환경유기농업 연수회 유치 요청쇄도/우리나라 고유의 기농산품을 개발하여 세계화에 진력하자/본회 제천 유기농업연수원 집체교육/우리의 산야초/토양검정은 친환경적 토양관리의 첫단계/휴면지회 해산 공고/제2차 친환경농업 육성목표와 방향/유기농업 자연과 인류 공존의길/유기농 농사 20년 넘게 지은 한국유기농업협회 안종근 이사가 말하는 진짜 유기농 식품/"친환경 농업.생태관광 추진을"/두자기 비료로 유기농작물의 고품질 다수확 생산을 체계적으로 보다 쉽게 하는 방법/광역친환경농업단지 선정/식물을 깨워 저항성을 갖게 하자/오이의 생리장해/엽채류 균핵병 방제/호주 친환경인증기관'국내인증기관' 지정시도/"제주도친환경우리농산물학교 급식사용에관한지원조례"소개/2.3월중 협회 일정 안내/해충의 습성을 이용한 퇴치/1월중 새식구 명단/제천.동부지회 창립총회/"친환경 농산물 믿어도 된다"/'새로운 도전과 희망' 벤처농업박람회 4월에/유기 및 일반 농산물의 품질 비교에 관한 연구/길항미생물

• THE HEALTH and ORGANIC FARMING
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• no.186
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• pp.1-24
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• 2003

새해 새정부 출범과 함께 친환경유기농업의 도약을 위해 분발/세계를 선도해 나갈 대한민국의 국민건강은 우리가 책임진다!/매실 코팅쌀.이온쌀.완전미... 한국 '쌀 혁명' 시작됐다/농산물 전자상거래 우수사례/친환경농업 바람 거세다/유기농업경영의 삼장 통합구상/유럽의 어메니티 정책동향/21세기 친환경농업 새로운 방향/친환경농업 노지감자와 양상추 재배기술/1월중 농사정보/강토플러스의 활용법/종이멀칭을 이용한 벼농사 제초방법/노무현 대통령 당선자 농정공약/시설내 잿빛곰팡이병.토마토 역병의 방제