• Korean journal of applied entomology
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• v.53 no.3
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• pp.311-315
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• 2014

Lantern fly(Lycorma delicatula) is a major invasive pest that causes withering symptom of agricultural crops by sucking tree sap and sooty mold symptom by producing honeydew. This study was conducted to investigate the occurrence pattern of lantern fly in grape orchards in Gyeonggi area and the effect of winter temperature on L. delicatula egg survival during 2010 to 2013. In Gyeonggi areas, overwintered L. delicatula eggs began to hatch from early May and nymphs peaked in mid May. Adults emerged from late July and laid eggs until early November. The survival of L. delicatula eggs during overwintering was largely affected by winter temperatures. The relationship between the number of days below a threshold temperature (x) in January and the survival rate of overwintering L. delicatula eggs (y) was using linear regression model. The best model selected by the lowest RSS (residual sum of square) between predicted and actual survival was y = -1.0486 x + 94.496 ($R^2=0.7067$) with $-11^{\circ}C$ of threshold temperature. These results should be helpful to conduct L. delicatula management programs, since the results provided relivable prediction for the winter survival of L. delicatula eggs and the phenology of egg hatch in the spring.

• Korean journal of applied entomology
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• v.40 no.3
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• pp.219-226
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• 2001

To identity the composition and ratio of the sex pheromone in the asiatic leafroller, Archippus breviplicanus (Walsingham), which is a major pest on apple leaves, and to develop a monitoring system using this sex pheromone, abdominal tips of their virgin female during the calling period were extracted and analysed. The GC/GC-MS analysis revealed the following three compounds; (E)11-tetradecenyl acetate (E11-14: Ac), (Z)11-tetradecenyl acetate (Z11-14: Ac), and tetradecyl acetate(14: Ac) with the ratio of 56:22:22. Electroantennogram (EAG) assay was also conducted to examine biological activity of the components. The three components evoked significantly higher responses than hexane or air but there was no significant differences between the mixtures made by components. Field trapping experiments for determining the optimum blend, seasonal fluctuation and the optimum amount for male attracting were carried out over 4 years from 1997 to 2000. Although male moths were attracted to 8:2 and 7:3 between E11-14: Ac and Z11-14: Ac, their 7:3 blend was found to be the most effective. Archippus breviplicanus appears to occur three times a year in Korea. The optimum amount for monitoring was found to be 1mg per trap. 14: Ac, the third component, did not show synergistic effect on male moth attraction.

• Korean journal of applied entomology
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• v.46 no.2
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• pp.251-259
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• 2007

For the development of integrated pest management system by harmonizing biological and chemical control, some experiments wee carried out to select low toxic pesticides against natural enemies. and their residual toxicity were evaluated. Leaf dipping method, body dipping method, and diet treatment method were set up for the toxicity evaluation against Cotesia glomerata adults. We had tested 46 different pesticides (31 insecticides, 11 fungicides, 4 herbicides) at recommending concentration commonly used to control diamond back moth, disease and up-land weeds in chinese cabbage field. Twenty three insecticides, eleven fungicides, and four herbicides were shown to be low toxic to C. glomerata adults in the treatment of body dipping. After insecticide spraying at recommending dose on the chinese cabbage, we examined residual effect of insecticides by introducing natural enemies on different days. Safety interval for the introduction of C. glomerata adults was established according to the residual toxicity of pesticides. Safe insecticides for the introduction of C. glomerata adults at one day after treatment (DAT) were thiacloprid, acephate, chlorfenapyr, clothianidin and at 3 DAT were imidacloprid, deltamethrin, thiamethoxam, dimethylvinphos, emamectin benzoate.

• Korean journal of applied entomology
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• v.46 no.3
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• pp.393-399
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• 2007

Two lepidopteran species, Matsumuraeses phaseoli (Matsumura) and Maruca vitrata (syn. M. testulalis) (Fabricius) were reared on artificial diets, and analyzed in their developmental characteristics. Photoperiod was supplied with 16L/8D for M. phaseoli and with 13L/11D for M. vitrata, respectively. Both species passed five larval instars with discrete sizes of head capsule width. In a constant environment ($25^{\circ}C$ and 65%RH), the developmental period of M. phaseoli egg, larva and pupa was 3.9, ca. 16.0 and 8.9 days, respectively, and over 80% of M. phaseoli larvae could develop into pupae, most of which emerged into adults. Newly laid eggs could be stored at $5^{\circ}C$ for 15 days with over 50% hatchability. Similar developmental traits were shown in M. vitrata. However, a low temperature preservation was not applicable to M. vitrata eggs.

• Korean journal of applied entomology
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• v.56 no.4
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• pp.395-402
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• 2017

Overuse of synthetic pesticides caused negative side-effects such as environmental contamination, development of insect pests' resistance, and effects on non-target organisms. Plant origin substances without/or with low mammalian toxicity have been considered as promising alternatives to the synthetic pesticides. Fumigant toxicity of the essential oil of Iranian Yarrow, Achillea millefolium L., was investigated against a cosmopolitan stored-product insect pest: saw-toothed grain beetle (Oryzaephilus surinamensis L.). Chemical profile of this essential oil was studied by Gas Chromatography-Mass Spectrometry. Tested concentrations were significantly effective to the mortality of insect pest. A positive correlation between essential oil concentrations and pest mortality were realized. LC50 value (lethal concentration needed to 50% mortality) was achieved as $17.977(16.195{\pm}20.433){\mu}l/l$ air. The main components were 1,8-Cineole (13.17%), nerolidol (12.87%), ${\alpha}$-cubebene (12.35%), artemisia ketone (6.69%), ${\alpha}$-terpineol (5.27%), alloaromadendrene oxide (4.71%) and borneol (3.99%). Terpenic compounds including monoterpene hydrocarbons (8.19%), monoterpenoids (44.23%), sesquiterpene hydrocarbons (21.69%) and sesquiterpenoids (22.24%) were 96.35% of the total identified compounds. Results indicated that the terpene-rich A. millefolium essential oil may be considered as a safe bio-agent in the O. surinamensis management.

• Korean journal of applied entomology
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• v.37 no.2
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• pp.193-198
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• 1998

Experiments were conducted to investigate the population fluctuation, developmental periods, fecundity, hatching rate and demage of Citrus red mite (Panonychus citri M.) on Yuzu trees (citrus junos T.) from 1996 to 1997. Citrus red mite occurred from May to November and made two peaks. The first peak was in July to August and the secondary peak was in October. Density of the second peak was higher (9.5 miteslleaf) than that of the first peak. In the constitution rate of each developmental stage of citrus red mite on Yuzu leaves, egg stage occupied 85%. At the four constant temperature (15, 20, 25, 30 + 1$^{\circ}$C, RH 60 + lo%, 14L- IOD) conditions, the developmental period from egg to adult was 41 .l, 15.5, 11.0 and 9.4 days ; Mean longevity of adult was 23.3, 8.3, 6.3, and 6.1 days; Mean number of egg laid per female per day was 1.6, 3.2, 4.5, 4.0 eggs; Mean hatching rate was 66.6, 85.7, 90.7 and 94.7% at above temperature, respectively. When sprayed acaricide at different density of Citrus red mite, the growth of young Yuzu tree were better at low density. Defoliation rate during winter was 13.5, 20.6, 53.1, 72.6% at 4 control density 1 , 3, 6 mites per leaf and uncontrolled (10 ( ). When every time spray acaricide under 3 mites per leaf, defoliation rate during winter suppressed above 50% compare to uncontrol 72.6%.

• Korean Journal of Agricultural Science
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• v.29 no.1
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• pp.32-43
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• 2002

The peach pyralid moth (Dichocrocis punctiferalis) is reported as import ant pest insect to chestnut fruits in Asia including Korea. For seasonal occurrence of D. punctiferalis in 1996, 1998 and 1999, D. punctiferalis adults were collected by light trap and sex pheromone wing trap in the chestnut orchard. Also, damaged rate of chestnut fruits were examined each collecting site. In 1996, according to examination by using light trap at three different site in Kongju, the occurrence peak of 2nd gene ration of D. punctiferalis adults was early August. Collected individuals after September were cons ide red as 3rd generation. Damaged rate due to maturation type was 26.5% averagely. The order of damaged rate were early, late and middle maturation type as 35.04%, 19.35% and 26.03%, respectively. Using synthetic sex pheromone trap at Kongju, Cheungyang and Buyeo in 1998, occurrence peaks were occurred mid-August to 2nd generation and late September to 3nd gene ration in Kongju. However, from early-August to late-September 5 peaks were occurred sequentially in Cheungyang. Second generation adults were occurred in mid-August and 3rd ones were occurred from late-September to early-October in Buyeo. In 1999, occurrence peaks of 3rd generation were early, middle and late September in Kongju, Cheungyang and Buyeo respectively. Damaged rate were 6.8%, 6.6% and 15.3% in Kongju, Cheungyang and Buyeo, respectively. Damaged rate order due to variety were Eunki, Chukpa, Danpa, Bokpa, Wangjung, Byunggo57, Yuoma at Buyeo and were Chukpa, Dukmyung, Byunggo57 at Cheungyang in 1999. Damage rate of chestnut were different with variety. Eunki and Chukpa in Buyeo and Chukpa and Dukmyung in Cheungyang were more damaged by D. punctiferalis respectively.

• KSBB Journal
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• v.15 no.1
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• pp.106-111
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• 2000

Peach fruit month, smaller tea tortrix, and Melotontha incana are major pests of apple and apple trees throughout the country. In this work, we examined efficacies of entomopathogenic nematodes Steinernema carpocapsae and Steinernema glaseri against these apple pests. Steinernema carpocapsae showed 100% mortality after 24hr against peach fruit moth when it was applied on the larva with the concentration of 80 nematodes per larva, but Steinernema glaseri caused 83.3$\pm$5.8% mortality after 24hr at the concentration of 50 nematodes per larva. In the case of smaller tea tortrix, S. carpocapsae and S. glaseri caused 100%, 43.3$\pm$5.8% at the concentration of 50 nematodes per larva after 48 hr, respectively. However, 5~6 instar of Melotontha incana was not killed by treatments with S. carpocapsae and S.glaseri up to concentration of 200~800 nematodes per larva. The motility of nematodes in a soil increased as both inoculation concentration of nematode per larva and temperature increased. The mortality of G. mellonella by S. carpocapsae was 100% up to 10cm in depth and 56.7$\pm$5.8% at 10~15cm in depth when the temperature was $25^{\circ}C$ and 50 nematodes per larva were used.

• Journal of the Korean Wood Science and Technology
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• v.35 no.1
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• pp.51-63
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• 2007

The biodeterioration behaviors of wooden parts in the Janggeongpanjeon built in 15 century were investigated according to the types of wood species, positions and parts of wooden column, and environmental conditions. It was found that a high differences of deterioration in the progressing levels of wood decay, according to the types of wood species, positions and parts of wooden column, and environmental conditions. The decay levels were high in the contacted areas with stone foundation which are about up to 8~40 cm above it, although it was shown the many of wooden parts of the round columns are still good condition. In the case of decay type, it was shown the brown-rot in many of the columns at outside of building which made of hardwoods. The decay in position of the columns was most serious in the directions of east-north, west-north and north. It was also indicated that the durability of Zelkova serrata was higher than other wood species of the round columns, while it was in inferior anti-insects.

• Proceedings of the Technology Innovation Conference
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• 2005.02a
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• pp.158-175
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• 2005

정부지원 R&D 프로그램에 대한 성과평가는 과학기술혁신을 위한 정부투자의 규모가 확대되면서 동시에 그 수요가 증가하고 있다. 본 연구는 국내외에서 시행되고 있는 정부 R&B 프로그램의 성과평가에 대한 체계를 비교분석함으로서 올바른 성과평가의 틀에 관한 시사점을 제공하는데 목적이 있다. 각 프로그램을 비교분석하기에 앞서 성과평가와 관련한 일반적인 이론들을 살펴봄으로써 R&D프로그램에 대한 성과평가가 갖추어야 할 이론적인 체계에 대해 살펴보았다. R&D 프로그램의 성과평가를 위해서는 R&D 활동 자체가 혁신시스템 안에서 수행되고, 집행과정에서 그 효과가 증폭되어 혁신시스템을 변화시킬 수도 있기 때문에 일반적인 정책평가 이론 외에도 혁신시스템 이론을 함께 고려할 필요가 있다. 혁신시스템적 사고방식하에서 올바른 성과평가를 수행하기 위해서는 일반적인 평가기준으로 서 제시되는 적합성, 효율성, 효과성의 각각에 대해 혁신시스템적 기여도에 대한 고려가 충실히 반영되어 있어야 한다. 예를 들어 혁신시스템의 모든 요소들을 포함하는지, 환경적인요인을 고려했는지, 혁신 요소들 간에 형성된 네트워크에 대해 충분한 고찰을 하고 있는지 등이 여기에 해당한다. 실증연구에서는 이러한 것들이 모두 반영되었는가에 초점을 맞춰 각 국가 별 R&D 프로그램에 대한 성과평가를 분석하였다. 분석 대상은 해외와 국내의 주요 R&D 프로그램으로 비교적 성과평가가 활발하게 진행되었던 사례들을 선정하였다. 이러한 평가에 대한 평가, 즉 메타평가를 통해 각 프로그램의 성과평가가 가지는 특성을 밝히고 이들을 비교하여 적절한시사점 이 도출하였다. 이들 사례를 비교 분석한다면 그 결과를 바탕으로 하여 혁신시스템을 고려한 성과평가의 일반적인 모형을 제시할 수 있을 것으로 기대한다. 나아가 추후에 진행될 R&D 프로그램에 대한 성과평가에서도 본 연구에서 제시한 일반 모형을 응용함으로써 조금 더 체계화된 성과평가가 이루어질 수 있을 것으로 기대한다.결과 관점간 가중치의 우선순위가 동일할 경우 현행 평가제도는 연구기관의 의견이 반영되었다고 볼 수 있으나, 검증결과 관점간 가중치가 다르게 나타났다. 또한, 추가적인 분석에서 연구회별 관점의 가중치와 소속 연구기관별 관점의 가중치를 분석한 결과 일부 연구기관에서는 연구회의 가중치와달리 나타났다. 따라서, 현행 기관평가제도는 일부 연구기관의 특성이 충분히 반영되지 않아서 유효한 평가제도로 볼 수 없다고 하겠다. 본 연구의 결과에 따라 출연연구기관의 기관평가지표에 대한 각 지표별 가중치와 지표 문항 개선시 유용한 자료로 활용되리라 본다.로 하기 때문에 원가를 절감할 수 있다.환경현안에 대한 정치경제적 접근을 외면하지 말고 교과서 저작의 소재로 삼을 수 있어야 하며, 이는 '환경관리주의'와 '녹색소비'에 머물러 있는 '환경 지식교육'과 실천을 한단계 진전시키는 작업으로 이어질 것이다. 이후 10년의 환경교육은 바로 '생태적 합리성'과 '환경정의'라는 두 '화두'에 터하여 세워져야 한다.배액에서 약해를 보였으나, 25% 야자지방산의 경우 50 ${\sim}$ 100배액 어디에서도 액해를 보이지 않았다. 별도로 적용한 시험에서, 토마토의 경우에도 25% 야자지방산 비누 50 ${\sim}$ 100배액 모두 약해를 발생하지 않았으나, 오이에서는 25% 야자지방산 비누 100배액에도 약해를 나타내었다. 12. 이상의 결과, 천연지방산을 이용하여 유기농업에 허용되는 각종의 살충비누를 제조할 수 있었으며, 방제가 조사결과 진딧물, 응애 등 껍질이 연약한 곤충의 방제에 효과적인 것으로 나타났다. 따라서 제조된 살충비누를 활용하면 환경친화적인 해충방제가 가능하다고 판단되었다.능을 충진시켜서 암세포를 파괴시킨다. 또한 콜로니 자극인자인 사이토카인을 생산시켜서 면역담당세포의 신생을 촉진시키기도 하며, 암의 화학요법과 방사선 요법으로 저하된 백혈구를 회복시키는 역할을 한다. 따라서 최근의