• 한국유기농업학회:학술대회논문집
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• 한국유기농학회 2009년도 하반기 학술대회
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• pp.45-56
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• 2009

2005년부터 2008년에 걸쳐 무농약 유기 농산물 인증을 받은 사과원의 변동상황을 조사하였고, 무농약 유기재배 사과원에서 병해충 발생과 관리 실태 파악을 목적으로, 2006년에는 17명을, 2009년에는 13명을 대상으로 심각한 피해를 야기하는 문제병해충과 병해충 관리를 위해서 사용하는 친환경 농자재에 대해서 설문조사를 실시하였다. 또한, 2007년에는 무농약 유기 농산물 인증을 받은 음성 무주 장성 영주 의성 청송 칠곡 지역의 10개 사과원을 대상으로, 2009년에는 충주 예산 영덕 지역의 3개 사과원을 추가한 13개 사과원을 대상으로 피해를 많이 주고 있는 병해충의 발생상황과 병해충 관리를 위해서 사용하는 친환경 농자재에 대해서 방문조사를 실시하여 다음과 같은 결과를 얻었다. 2005~2008년에 걸쳐 사과에 무농약농산물 인증을 받은 농가는 각각 9, 24, 42, 48농가였으며, 유기농산물(전환기유기농산물 포함) 인증을 받은 농가는 각각 5, 4, 11, 30농가로서, 2005년 대비 2008년에 무농약농산물은 5.3배, 유기농산물은 6배가 증가하였다. 무농약 유기 농산물 인증 사과원에서 문제병해는 갈색무늬병, 탄저병, 겹무늬썩음병, 그을음(점무늬)병이었는데, 석회유황합제와 석회보르도액을 사용하는 사과원의 경우에 2006년과 2007년에 비하여 2009년에는 갈색무늬병, 탄저병, 겹무늬썩음병의 피해가 적었고, 그을음(점무늬)병은 심하지는 않았지만 문제가 되었다. 문제해충은 2006년과 2007년에는 사과혹진딧물, 복숭아순나방, 복숭아심식나방이었으나, 2009년은 교미교란제, 난황유, 기계유유제를 사용하는 사과원의 경우에 이들 해충의 피해는 크게 적어진 반면에, 일부 사과원에서 사과유리나방과 사과면충이 새롭게 문제 되었다.

• 한국토양동물학회:학술대회논문집
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• 한국토양동물학회 1985년도 춘계 총회 및 학술발표대회
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• pp.3-3
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• 1985

No Abstract, See Full-text

• 아시안잔디학회지
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• 제21권1호
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• pp.51-67
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• 2007

본 연구는 골프장의 조경수에 피해를 주는 해충의 종류와 피해를 조사하여 골프장 조경수 해충관리의 기초 자료를 제공하고자 경남 양산의 통도골프장과 진해의 용원골프장, 경북 경산의 대구골프장, 부산 금정의 동래베네스트골프장에서 수행하였다. 조사지 골프장의 22목 33과 54속 88종의 조경수에서 확인 된 해충은 6목 34과 44속 60종이었다. 대부분의 조경수에서는 2종 이하의 해충이 확인되었으나 아까시나무, 벚나무, 밤나무, 떡갈나무, 굴참나무에서는 5종 이상의 해충이 확인되었다. 대부분의 해충들은 2종 이하의 조경수를 가해하였으나 주둥무늬차색풍뎅이는 41속 67종의 조경수에서 피해가 확인되었다. 조사 골프장의 조경수에서는 딱정벌레목과 매미목 해충이 36.4%와 36.3%로 많이 발생하고 있었다. 발생 빈도가 높은 해충은 9%였고 매우 드물게 발생한 해충은 73%였다. 섭식형태별 해충의 비율은 저작형이 49%, 흡즙형 해충이 51%였다.

• International Journal of Industrial Entomology and Biomaterials
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• 제32권2호
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• pp.69-79
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• 2016

Distillers dried grain (DDG) and makgeolli spent grain (MSG) are agricultural byproducts to produce alcoholic beverage. However, they are known to contain enough nutrients. Mealworm is a promising insect resource for an animal feed ingredient as well as alternative human food. With low cost, DDG and MSG were investigated as a feed ingredient for rearing high quality mealworms. DDG and MSG were mixed with wheat bran and compared to control feed (only wheat bran) for its effects on larval survivorship, larval weight, duration for developmental period, pupation rate, and pupal weight. When DDG added, larval survivorship was reduced to 50~70% compared to the control group. Larvae fed on DDG were heavier from third to sixth week. Especially, larvae with 50% DDG were 28% heavier than the control group at the third week. For the larval period, the 50% DDG group was 11% less than that for the control. The pupal weight for the 30% DDG group was 7% heavier than that for the control group. Pupation rates for all the DDG groups were higher than 90%. When compared to the control, larval survivorship for the 70% MSG group was low, but the 50% and 70% MSG groups were high during the seventh and eighth weeks because of delayed development. After the eighth week, larvae with 70% MSG showed the highest larval weight increase as 9~18% compared to the control group. Except 70% MSG group, all of MSG groups showed more than 90% pupation rates. We confirmed that adding 30~50% of DDG or MSG to conventional wheat bran have a strong potential to replace the conventional wheat bran insect feed for quality insect production.

• Journal of Forest and Environmental Science
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• 제36권3호
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• pp.255-258
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• 2020

Pine wilt disease (PWD) caused by pine wood nematode (PWN), Bursaphelenchus xylophilus, which is transmitted by Monochamus alternatus and M. saltuarius, is a serious threat to coniferous forests in the Northern Hemisphere, including Korea. The efficacy of abamectin and emamectin benzoate for preventing the PWD in the field and its effect on the vectors Monochamus alternatus and M. saltuarius (Coleoptera: Cerambycidae) were evaluated. An experimental plot was delimited, of which consists of Japanese red pine (Pinus densiflora) forest in South Korea, and trunk injection trials were made with abamectin and emamectin benzoate. Branches of each tree were collected, and are subsequently subjected to the analysis of residues for both nematicides. Results obtained in this study showed that abamectin and emamectin benzoate showed over 90% mortality at the recommended concentration after 6 days and 8 days, respectively. Consequently, it was found that both insecticides have a higher effect on the susceptibility and persistence of two vectors of PWD, M. alternatus and M. saltuarius feeding on branches of the trees, and its application by trunk injection is confirmed as an option for pine wilt disease management programs in Korea.

• Proceedings of the National Institute of Ecology of the Republic of Korea
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• 제5권1호
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• pp.21-27
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• 2024

Harmful pet insects, if not controlled, can negatively affect people, plants and their surrounding environment. In Vietnam, all crops are regularly impacted by pest insects. In serious cases, crops can be totally destroyed by insect pests. Harmful insects that damage crops often grow fast and increase rapidly. Therefore, research on insects is crucial for managing pests, protecting crops, and forecasting pest situation in the following years. This study aimed to collect data regarding changes of pests on rice and corn as two main crops in four provinces in Red River Delta of Vietnam, including Thai Binh, Nam Dinh, Ha Nam, and Hung Yen, from 2018 to 2022. Primary data were collected from reports of government agencies and official statistics. Based on these data, this study evaluated changes of pest insects in five years, discussed reasons for such changes and response methods, and forecasted pest's behavior in the following years. Significant findings of this study include the fact that Vietnam has to face many difficulties to develop its agricultural sector. For insect management, an essential action is to do ground surveys to gather all related data including weather data, pesticide data, crop yield, and product quality. This information is meaningful for finding out causes of changes, understanding relationships between insects and surrounding factors, and predicting the situation in the following years.

• 한국응용곤충학회지
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• 제57권1호
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• pp.33-38
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• 2018

호두는 경제적으로 중요한 유실수 중 하나이지만, 호두나무 포장 내에서 해충에 의한 피해 특성에 대한 정보는 매우 부족하다. 본 연구에서는 복숭아명나방과 굴피가는나방에 의한 호두열매와 잎의 피해를 조사하였다. 2017년 충남 부여군에 위치한 포장에서 복숭아명나방에 의한 호두열매 피해율의 변화를 조사하였다. 또한 김천, 부여, 영동 및 화성의 포장 내에서 2종의 나방에 의한 호두열매 및 잎의 피해율을 조사하였다. 부여 포장 내 호두열매의 피해율은 시간이 흐름에 따라 지속적으로 증가하였고, 피해율은 늦여름에 가장 높았다. 호두열매의 최종 피해율은 부여, 김천 및 화성에서 각각 22.1%, 20.5%, 11.7%로 조사되었다. 굴피가는나방에 의한 잎 피해는 성목의 신초 가지(평균 11.2%)에 비해 묘목의 신초 가지(평균 58.5%)에서 더 높은 것으로 조사되었다. 본 연구 결과, 호두나무 포장 내에서 복숭아명나방과 굴피가는나방에 의한 열매와 잎 피해가 심각한 것으로 확인되었으며, 향후 이들에 대한 방제기술 개발이 필요할 것으로 판단된다.

• 한국농림기상학회:학술대회논문집
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• 한국농림기상학회 2003년도 춘계 학술발표논문집
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• pp.87-87
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• 2003

The Gyeonggi-do Agricultural Research and Extension Services has developed a web-site (http://www.epilove.com) in collaboration with EPINET to provide information on agricultural weather and rice disease and insect pest management in Gyeonggi-do. Weather information includes near real-time weather data monitored by automated weather stations (AWS) installed at rice paddy fields of 11 Agricultural Technology Centers (ATC) in Gyeonggi-do, and weekly weather forecast by Korea Meteorological Administration (KMA).(omitted)

• 한국응용곤충학회지
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• 제22권2호
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• pp.98-105
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• 1983

The rapid increase in cases of insect resistance to insecticides indicates that the contribution of present chemical control practices inevitably leads to exhaustion of available insecticide resources against key insect species. Now the problem of insecticide resistance exists worldwide among insects and mites affecting field crops and animals including human beings, ranging from minimal or absent in some developing countries, where use of insecticides has been low, to extremely severe in many developed countries. Since the occurrence of insect resistance to insecticides was firstly recognized in 1908, the increase in recent decades has been almost linear and now the number of species of insects and acarines in which resistant strains have evolved have been increased to a total of 432. Of these, $261(60\%)$ are agricultural importance and $171(40\%)$ of medical/veterinary importance. The phenomenon of insecticide resistance is asserting itself as the greatest challenge to effective chemical control of many important insect pests. Resistance of insects to insecticides has a history of nearly 80 years, but its greatest increase and its strongest impact have occurred during the last 40 years following the discovery and extensive use of synthetic organic insecticides and acaricides. The impact of resistance should be considered not only in terms of greater cost of pest control due to increased dosages and number of applications but also in terms of the ecological disruption of pest-beneficial species density relationships, the loss of investment in the development of the insecticides concerned, and socio-economic disruption in agricultural communities. Despite its grave economic consequences, the phenomenon of insecticide resistance has received surprisingly little attention in Korea. Since the study of insecticides started firstly in 1963, many entomologists have been concerned with this study. According to their results, some of the rice pests and some of the mites on orchard trees, for example, have developed worrisome level of resistance in several areas of this peninsula. With many arthropods, considerable advances in the developed countries have been made in the study of the biochemical and physiological mechanisms of resistance. Progress involves the biochemical characteristics of specific defense mechanisms, their genetics, interactions, and their quantitative and qualitative contribution to resistance. But their studies arc still inadequately known and relatively little have been contributed in terms of unique schemes of population management in achieving satisfactory pest control. It is apparent that there is no easy solution to resistance as a general phenomenon. For future challenging to effective control of insect pests which are resistant to the insecticides concerned, new insecticide groups with distinctly novel mode of action are urgently needed. It is clear, however, that a great understanding of the factors which govern the intensity of selection of field population for resistance could lead to far more permanently successive use of chemicals within the framework of integrated pest management than heretofore practiced.

• 농약과학회지
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• 제5권4호
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• pp.11-19
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• 2001

곤충의 난황형성에는 각종호르몬들이 먹이 등과 함께 매우 중요하게 작용하고 있으며, 이러한 호르몬들 중에서는 신경분비호르몬, 유약호르몬 및 엑디스테로이드 등이 주작용을 한다. 본 총설에서는 곤충호르몬을 포함한 곤충성장조절제가 곤충의 난황형성에 작용하여 어떤 영향을 주는지에 대하여 살펴보고 종합적 해충관리 인자로서 이용 가능성을 조사하였다. 곤충의 난황형성은 일반적으로 뇌에서 분비하는 신경분비호르몬의 작용과 난소에서 분비되는 엑디스테로이드 및 알라타체에서 분비되는 유약호르몬이 지방체를 자극하여 난황소전구물질을 합성하게 하며, 혈림프로 분비된 난황소 전구물질은 난모세포로 흡수되어 난발육이 이루어진다. 곤충호르몬을 포함한 곤충성장조절제는 이러한 난황형성과정 중에 각종 호르몬분비 기관(알라타체와 난소 등) 및 여러 가지 생리기관(지방체, 중장상피 그리고 침샘 등)에 작용하여 용해, 파괴 및 세포독성을 나타내 정상적인 생식작용을 하지 못하도록 한다. 따라서 곤충의 종류에 따라서는 포유동물에 독성이 낮은 곤충호르몬을 포함한 곤충성장조절제를 종합적 해충관리의 일환으로 사용함으로서 효과적인 해충방제가 가능할 것으로 보인다.