• KOREAN POULTRY JOURNAL
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• v.8 no.8 s.82
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• pp.76-82
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• 1976

무더운 장마철에 많이 발생하는 콕시듐병은 외관상으로 바로 알 수 있는 병의 형태와 전혀 외적 증상이 나타나지 않은 상태에서 피해를 입는 형이 있다. 예방제와 치료제를 적절하게 이용만 한다면 이로 인한 피해를 미연에 충분하게 막을 수 있다. 특히 성계의 만성콕시듐발생을 미리 막는 예방책을 강구하여 산란율을 높이자.

• Feed Journal
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• v.2 no.7
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• pp.100-103
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• 2004

PMWS는 최근 국내 양돈장에 가장 큰 피해를 입히는 질병으로 그 피해를 줄이기 위한 여러 가지 시도가 이루어지고 있지만 사실 농장간 시설, 관리상의 변이가 다양하므로 예방 및 컨트롤을 위한 표준 관리 지침을 설정하기가 어렵다.<중략>

• Life and Agrochemicals
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• s.259
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• pp.26-29
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• 2010

작물에 발생하는 각각 바이러스의 증상과 예방대책을 숙지하고, 건전 종자와 건전 묘 사용, 청결 재배, 감염 식물체 조기제거, 신속한 진단요청과 대응 등을 성실히 이행하면 바이러스병 피해를 예방할 수 있다.

• 수목보호
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• s.12
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• pp.34-41
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• 2007

• Landscaping Tree
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• s.122
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• pp.51-57
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• 2011

• 방재와보험
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• s.115
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• pp.70-71
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• 2006

유난히 길었떤 장마 끝이 지나가고 여름철 무더위도 한풀 꺾였다. 이번 수해로 많은 피해를 입은 이웃들은 복구 작업에 아직도 구슬땀을 흘리고 있을 것이다. 여름철 무더위에 가장 조심해야 할 것은 고온에 의한 열손상이다. 여름철이면 흔히 '더위 먹었다'고 표현하는 사람들이 늘어난다. 주로 호소하는 증상은 피로감과 짜증, 무기력, 집중력 장애, 식육부진, 두통, 어지러움 등이다. 이러한 증상들은 다른 질병의 초기 증상일 가능성도 있지만 흔한 원인 중 하나가 바로 과로와 더위로 인한 신체리듬의 장애라고 할 수 있다. 이것을 일시적인 증상으로 자연 회복이 되는 경우도 있지만 반드시 적절한 도움을 받아야 하는 경우도 있다. 열경련, 열피로, 열사병 등 고온에 의한 열손상에 대해 알아보자.

• Korean Journal of Soil Science and Fertilizer
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• v.40 no.1
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• pp.31-35
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• 2007

In order to find out the cause of plant injury, the symptom of plant injury, and contents of element concerned in the plant were analysed. Also, a case study was conducted to find out the factor of plant injury at a agriculture and industry complex in Gyeongsang province in 2004. The distribution of isomeric curve was made with meteorological data, toxic gas concentration exhausted from pollution source. The general symptom of plant injury by ammonia gas was dry and dead of leaves with white color. At low concentration of ammonia gas, plant leaf showed spots of reddish brown. The characteristic of plant injury symptom by hydrogen fluoride gas was that the symptom was appeared at the edge of leaf. The isomeric curve of sulfur dioxide at the region, where the plant was damaged, showed that the area was affected by exhausted gas from the pollution source. Especially, this area was affected more deeply at summer than any other season.

• Korean journal of applied entomology
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• v.15 no.4 s.29
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• pp.193-197
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• 1976

Field experiments were carried out to find out effective chemicals and number and time of a chemical application for the control of the rice white-tip nematode, Aphelechoides besseyi, parasite on rice plant. Ethoprop and carbofuran were significantly effective to make increase as much as $19\%,\; or\; 260g/3.3m^2$ of unhulled grain yield. Application of carbofuran as soon as the white-tip symptom of the disease appears in field is recommended for the effective control of the disease.

• FLOWER RESEARCH JOURNAL
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• v.17 no.4
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• pp.237-241
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• 2009

This study was conducted to determine injury symptoms of orchids by sulfur dioxide gases, three orchid plants (Phalaenopsis, Cymbidium, Oncidium) were exposed to sulfur dioxide gas in an enclosed growth chambers. Sulfur dioxide gases treatments consist of five different concentrations (0, 5, 10 25, and 50 ppm) and plant exposure of 18 hours with $25{\pm}5^{\circ}C$ air temperature and $50{\pm}5%$ relative humidity. SPAD values for chlorophyll content and percent leaf injury as well as leaf ion exudation were measured before and after the gas treatments. Phalaenopsis leaves showed 23.3% leaf injury at 10 ppm sulfur dioxide gas, whereas Cymbidium and Oncidium showed 4.0 and 4.4% leaf injury under 25 ppm or less, respectively. Major leaf injury symptoms appeared as initial water-soaking under side of the leaf, followed by rapidly progressed complete leaf discolorization or chlorosis. As the gas concentration increased, the SPAD value decreased while ion exudation increased. Cymbidium and Oncidium were resistant to sulfur dioxide gas than Phalaenopsis.

• Korean journal of applied entomology
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• v.61 no.4
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• pp.639-640
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• 2022

A Ypsolophid moth Saridoscelis sphenias Meyrick was recorded in 2020 first in Korea, and specimens were collected from Jindo and Wando in Jeonam province from 2016 to 2017. This moth uses host plants such as Pieris japonica (Thunb.) D. Don ex G. Don, Vaccinium bracteatum Thunb. and Leucothoe grayana Maxim. var oblongifolia (Miq.). This species was discovered once in a blueberry orchard in Jeju in August 2014, and since then it has been regarded as not an established species because of no further detection. However, S. sphenias was found again in blueberry orchards grown in vinyl houses in Jeju city and Seogwipo city in 2018 and 2019. Since 2020, this pest has also been found on field-grown blueberries. Hatched larvae first bored into new shoots and fed inside, and the mid-aged larvae escaped from the inside of shoots, attached several shoots with webs, and fed on the leaves in the group. It is considered that S. sphenias will become a severe pest on blueberries; thus, we report the basic life cycle here.