토마토 온실에서 담배가루이 성충에 대한 노란색 및 백색 트랩의 방제효과

이중섭(Jung-Sup Lee),이재한(Jae-Han Lee),박경섭(Kyung-Seob Park),여경환(Kyung-Hwan Yeo),김진현(Jin-Hyun Kim),권준국(Jun-Kuk Kweon) (사)한국생물환경조절학회 2017 생물환경조절학회지 Vol.26 No.4

토마토 작물에 발생하는 B. tabaci에 대한 예찰을 위해 시설재배지뿐만 아니라 노지 재배에서도 노란색 점착 카드트랩이 주로 사용되고 있다. 그러나, 예찰트랩의 색상과 굴절되는 빛의 강도 및 환경 변화에 따라 B. tabaci 유인력은 차이를 나타내고 있다. 따라서, 온실에 발생하는 B. tabaci 성충에 대한 light 트랩의 시설 재배지내의 이용 가능성을 평가하기 위해 white light (450-625nm) 및 yellow light (590nm) 트랩과 광원이 장착되지 않은 트랩을 이용하여 유인 활성을 비교하였다. 본 시험결과 광원별 B. tabaci 포획밀도는 yellow light 트랩(525 nm)에서 168±7.6(마리/트랩)로 가장 높은 유인활성을 나타내었으며, white light 트랩에서는 106±4.6(마리/트랩)으로 다소 낮은 개체수가 포획되었다. 그러나 대조구로 사용된 광원이 설치되지 않은 트랩의 경우 광원이 설치된 트랩보다 적은 60±4.8(마리/트랩)의 개체수가 포획되었다. 따라서, yellow light trap과 white light 트랩에서 높은 B. tabaci 성충의 유인력을 나타내었다. 이러한 결과를 바탕으로 yellow light 및 white light 트랩이 토마토 시설 재배지에서의 B. tabaci 성충에 대한 친환경적 해충 방제법의 일환으로 적용 될 수 있을 것으로 판단되었다. Yellow sticky traps have been commonly used for monitoring tobacco whitefly populations in openfields, as well as in greenhouses. However, the attractiveness depends on various factors such as the reflected intensity (brightness) and hues of yellow color (wavelength) of the trap surface, which is often influenced by environmental conditions and may sometimes affect tobacco whitefly capture. Therefore, the use of light-emitting traps can be a significant complementary tool to strengthen the attractiveness and selectivity of these traps. This research was carried out in tomato greenhouses to evaluate the light-emitting trap as potential attractants for Bemisia tabaci adults. The results showed that B. tabaci adults on average preferred (p>0.05) traps in yellow lights (590 nm) (168 ± 7.6 adults/trap) compared to traps in white lights (106 ± 4.6 adults/trap) and traps without lights (60 ± 4.8 adults/trap). The yellow light trap(590 nm) showed the most attractive to B. tabaci adults, followed by a little lower attraction to the white light trap(450-625 nm), whereas the control (no light trap) was little attractive to B. tabaci adults. These results suggested that yellow and white light traps could have a promising use in greenhouses for the identification, monitoring, and pest control tools of tobacco whiteflies.

Device design rules and operation principles of high-power perovskite solar cells for indoor applications

Ann, Myung Hyun,Kim, Jincheol,Kim, Moonyong,Alosaimi, Ghaida,Kim, Dohyung,Ha, Na Young,Seidel, Jan,Park, Nochang,Yun, Jae Sung,Kim, Jong H. Elsevier 2020 Nano energy Vol.68 No.-

<P><B>Abstract</B></P> <P>In this work, we report on the design principles of high-power perovskite solar cells (PSCs) for low-intensity indoor light applications, with a particular focus on the electron transport layers (ETLs). It was found that the mechanism of power generation of PSCs under low-intensity LED and halogen lights is surprisingly different compared to the 1 Sun standard test condition (STC). Although a higher power conversion efficiency (PCE) was obtained from the PSC based on mesoporous-TiO<SUB>2</SUB> (m-TiO<SUB>2</SUB>) under STC, compared to the compact-TiO<SUB>2</SUB> (c-TiO<SUB>2</SUB>) PSC, c-TiO<SUB>2</SUB> PSCs generated higher power than m-TiO<SUB>2</SUB> PSCs under low-intensity (200–1600 Lux) conditions. This result indicates that high PCE at STC cannot guarantee a reliable high-power output of PSCs under low-intensity conditions. Based on the systemic characterization of the ideality factor, charge recombination, trap density, and charge-separation, it was revealed that interfacial charge traps or defects at the electron transport layer/perovskite have a critical impact on the resulting power density of PSC under weak light conditions. Based on Suns-<I>V</I> <SUB>OC</SUB> measurements with local ideality factor analyses, it was proved that the trap states cause non-ideal behavior of PSCs under low-intensity light conditions. This is due to the additional trap states that are present at the m-TiO<SUB>2</SUB>/perovskite interface, as confirmed by trap-density measurements. Based on Kelvin probe force microscopy (KPFM) measurements, it was confirmed that these traps prohibit efficient charge separation at the perovskite grain boundaries when the light intensity is weak. According to these observations, it is suggested that for the fabrication of high-power PSCs under low-intensity indoor light, the interface trap density should be lower than the excess carrier density to fill the traps at the perovskite's grain boundaries. Finally, using the suggested principle, we succeeded in demonstrating high-performance PSCs by employing an organic ETL, yielding maximum power densities up to 12.36 (56.43), 28.03 (100.97), 63.79 (187.67), and 147.74 (376.85) <I>μ</I>W/cm<SUP>2</SUP> under 200, 400, 800, and 1600 Lux LED (halogen) illumination which are among the highest values for indoor low-intensity-light solar cells.</P> <P><B>Highlights</B></P> <P> <UL> <LI> The device design principles of high-power perovskite solar cells for indoor light applications were investigated. </LI> <LI> For high-power under indoor light, trap density should be lower than excess carrier density. </LI> <LI> Perovskite solar cells with high-power density up to 376.85 <I>μ</I>W/cm2 under indoor light were demonstrated. </LI> </UL> </P> <P><B>Graphical abstract</B></P> <P>In this work, the device design rules for achieving high-power perovskite solar cells under indoor light are suggested based on the device operation principle under low intensity light conditions.</P> <P>[DISPLAY OMISSION]</P>

LED 트랩을 이용한 온실내 배추좀나방에 대한 유인효과

박준환 ( Jun Hwan Park ),이상민 ( Sang Min Lee ),이상계 ( Sang Guei Lee ),이회선 ( Hoi Seon Lee ) 한국응용생명화학회(구 한국농화학회) 2014 Journal of Applied Biological Chemistry (J. Appl. Vol.57 No.3

배추좀나방에 대한 light emitting diode (LED) 트랩의 시설재배지내 이용가능성을 평가하기 위해 LED 트랩의 유인활성을광원이 장착되지 않은 no light 트랩과 상업적 대조구인 blacklight트랩과 비교하였다. 그 결과 green LED 트랩에서 가장 높은 유인활성을 나타내었으며, 상업적 대조구로 사용된 blacklight의 경우 광원이 설치되지 않은 no light와 비교하여 유인활성을 나타내었으나 green LED 보다 낮은 활성을 나타내었다. 이러한 결과를 바탕으로 green LED 트랩이 시설재배지내에서친환경적 해충방제법으로의 가능성을 보여주었다. This study was conducted to determine the attractiveeffects of Plutella xylostella adults to light emitting diode (LED)trap in greenhouse and compared with those of no light trap andblack-light which is typically used in commercial luring lamp. The green LED trap captured more P. xylostella when comparedwith black-light trap, whereas the no light trap was a littleattractive to P. xylostella adults. These results indicated that thegreen LED traps could be used for environmental insect pestcontrol.

Effectiveness of portable solar-powered light-emitting diode insect trap: Experimental investigation in a groundnut field

Balamurugan Ranganathan,Kandasamy Palani 한국응용곤충학회 2021 Journal of Asia-Pacific Entomology Vol.24 No.4

Pest control is a major challenging component in agricultural and horticultural crops. Recently, the light-emitting diode (LED) trap driven by solar energy is a growing eco-friendly technology in pest control. The study was aimed to design, fabricate and investigate the effectiveness of a portable solar-powered LED trap for monitoring insect pests. The trap is compressed into a photovoltaic panel, battery, LED array, solar rectifier, insect collection tray, and PVC legs. Four different coloured LEDs viz., ultraviolet (UV)-405 nm, blue-470 nm, green-525 nm and red-630 nm were studied. The study was conducted in a groundnut field during the autumn season for 15 days. The results showed that the UV LED trap captured significantly more insects than the blue, green, and red LED traps except for Helicoverpa armigera. The average attraction of Spodoptera litura, Aproaerema modicella, Amsacta albistriga, Scirtothrips dorsalis, Aphis craccivora, and Empoasca kerri population to UV LED trap was 77.17 ± 18.89, 64.67 ± 12.91, 39 ± 16.80, 43.33 ± 18.30, 38.33 ± 17.08 and 33.17 ± 10.94, respectively. The red LED trap captured the least number of insects; however, the attraction of A. albistriga to the red LED was higher than the blue and green LED traps. Arcsine transformation (AT) was applied to transform experimental trap efficiency. UV LED trap had a significantly higher AT value than other LED traps. Overall mean AT values for UV, green, blue, and red LED traps were 34.98, 31.06, 29.87 and 22.87, respectively. The proposed portable solar-assisted LED trap could be a promising and effective pest control tool in areas where inconsistent electricity supply.

토마토 온실에서 청색 발광 및 점착트랩을 이용한 온실가루이 유인 효과

이중섭(Jung Sup Lee),이재한(Jae Han Lee),권준국(Joon Kook Kwon),박경섭(Kyoung Sub Park),김진현(Jin Hyun Kim),이동수(Dong Soo Lee) (사)한국생물환경조절학회 2018 생물환경조절학회지 Vol.27 No.3

시설 토마토 온실에서 다양한 발광 램프가 장착된 트랩을 가지고 온실가루이의 유인 효과에 미치는 영향에 대하여 조사하였다. 설치된 램프의 종류는 청색, 황색 그리고 흰색 발광 램프가 장착된 트랩을 이용하였다. 실험 결과 청색 발광 램프가 설치된 트랩에서 110마리로 가장 많은 온실가루이 성충이 유인되었고 황색램프 트랩과 흰색램프 트랩에서는 각각 71마리와 45마리가 포획되었다. 이때 청색 발광램프 트랩의 파장대역은 330㎚에서 430㎚를 나타내었다. 그러나, 황색광과 흰색광 발광램프 트랩에서도 청색광 램프의 파장대역을 가지고는 있었으나 한편으로 온실가루이가 회피하는 파장대역 또한 동시에 포함하고 있었다. 이 결과 이들 두 개의 트랩에서 보다 청색광 발광트랩이 유인 포획률이 높아 시설토마토 온실에서 온실가루이의 방제와 예찰에 효과적으로 사용될 수 있을 것으로 판단되었다. The effect of the trap equipped with diverse light-emitting lamp on the lure efficiency of whitefly (Trialeurodes vaporariorum) was investigated in the greenhouse cultivating tomato. The light-emitting lamp type equipped to trap was blue, yellow, and white light-emitting lamp. The experiment results showed that trap equipped with blue light-emitting lamp captured the most number of 110±3.2 adult whitefly and the number of captured adult whitefly was 71±1.4 at yellow light-emitting lamp trap and 45±1 at white light-emitting lamp trap respectively. The wavelength distribution band of blue light-emitting lamp was between 330 ㎚ and 430 ㎚. The wavelength band of yellow and white light-emitting lamp contain repellent wavelength band at the same time. These results show that the trap equipped with blue light-emitting lamp could be used effectively for whitefly control and prevention in the greenhouse cultivating tomato.

Evaluating the phototactic behavior responses of the diamondback moth, Plutella xylostella, to some different wavelength LED lights in laboratory and field

Yun Chol-Nam,Maeng Il-Song,Yang Son-Hui,Hwang Un-Jo,Kim Kil-Nam,Kim Kyong-Chol,Ho Kum-Chol,Ri Chung-Song,Yang Hyon-Son,Jang Song-Hun 한국응용곤충학회 2023 Journal of Asia-Pacific Entomology Vol.26 No.3

Light traps equipped with light emitting diodes (LEDs) have been applied to manage some phototactic insect pests. The diamondback moth, Plutella xylostella, is a cosmopolitan insect pest to be seriously harmful to many cruciferous plants. The present research focused on evaluating the phototactic behavior responses of the moths to several wavelengths and photon flux densities of LED lights under laboratory and field conditions. The results from the laboratory showed that the highest phototactic behavior responses of P. xylostella moths were recorded for UV (380 nm) LED light under 1.5 µmol m − 2 s − 1 and 2.5 µmol m − 2 s − 1 . The moths were more attracted to light traps equipped with 4 LEDs and 6 LEDs of 380 nm, respectively, between 20:00 and 22:00 than the other groups and night times in the field. The finding from the field was consistent with the results from the laboratory. We found that the 380 nm LED light results in the strongest attraction rate of the moths by 92.4 % and the moths caught in light trap with the UV LEDs was 1.62 times more than that with a black light. These data clearly demonstrate that P. xylostella moths have a high sensitivity to 380 nm, therefore, a 380 nm LED light trap could be useful for monitoring and controlling the moths.

Centrifuge Tube Trap: A Direct-Sampling Mini Plankton Light Trap for Under 3USD

Seong Lee Neoh 한국해양과학기술원 2022 Ocean science journal Vol.57 No.1

Of the light plankton traps, tube traps are the simplest and easiest to construct. However, they have a serious limitation—the need to process the sample postharvest. This usually involves the time-consuming transfer of samples from the trap to a separate storage vessel. To eliminate this problem, a tube trap was constructed using a centrifuge tube that acts as both the trap and also the final storage vessel. The light source was an ordinary pen-style flashlight inserted in another centrifuge tube to waterproof it, which is then used to illuminate the sampling centrifuge tube. Post sampling, the centrifuge tube is capped and directly removed for storage with no concentration stage required. Field trials indicated that this centrifuge tube trap is effective in trapping phototactic organism, in particular the calanoid copepods.

Effect of several factors on the phototactic response of the oriental armyworm, Mythimna separata (Lepidoptera: Noctuidae)

Kil-Nam Kim,Hye-Seng Song,Chung-Seng Li,Qiu-Ying Huang,Chaoliang Lei 한국응용곤충학회 2018 Journal of Asia-Pacific Entomology Vol.21 No.3

Recently, light traps equipped with light-emitting diode (LED) lights have been used to monitor and control nocturnal insect pests. The oriental armyworm, Mythimna separata Walker, is an important cosmopolitan agriculture pest. The phototactic responses of nocturnal insects, including moths are influenced by abiotic and biological factors. The present study aimed to evaluate the phototactic response to different wavelength LED lights to determine the wavelength to which M. separata adults are most sensitive, and then identify the effects of several factors on the phototactic response. Our experiments revealed that M. separata adult moths had a significantly higher attraction rate to the green (520 nm) LED light compared with other LED lights, the green LED light was 1.28 times more attractive the moths than the commercial double-wave light used as a control. The phototactic response of the adult moths was significantly influenced by several factors, including adaption time in darkness, age, mating status and sexuality. These findings suggest that using a green LED light as a light source in trap could be effective in monitoring or controlling M. separata moths. Our results may provide a theoretical and scientific basis for improving the light trap technique for M. separata moths.

시설재배지에서 LED 트랩을 이용한 파밤나방(Spodoptera exigua) 성충의 유인효과

김민기 ( Min Gi Kim ),이회선 ( Hoi Seon Lee ) 한국응용생명화학회(구 한국농화학회) 2012 Journal of Applied Biological Chemistry (J. Appl. Vol.55 No.4

The attraction effects of light emitting diode (LED) trap to Spodoptera exigua adults were evaluated in greenhouse and compared with those of no light trap and black-light trap, which is typical used in commercial trap. 7 days later, white LED trap (83.0±0.7) was 2.4 times more attractive than black-light trap (34.0±2.6), whereas the no light trap was little attractive to S. exigua. These results suggest that white LED traps could be used for environmental insect control.

유기와 관행재배 배 과수원의 무척추동물의 종 다양성 연구

김도익,김선곤,고숙주,강범용,최덕수,임경호,김상수 한국유기농업학회 2011 韓國有機農業學會誌 Vol.19 No.1

This research was carried out to investigate invertebrate fauna with organic and conventional pear orchards, which used four collected methods; soil sampling for soil microorganism, pitfall, malaise, and black light trap for over ground species. Collected species were 37 species, 1,184 individuals in organic and 28 species, 501 individuals by soil sampling in conventional pear fields. Those were 38 species, 646 individuals and 29 species, 440 individuals by pitfall trap, 55 species 650 individuals and 47 species, 508 individuals by malaise trap, and 23 species, 201 individuals and 9 species, 42 individuals by black light trap. Collembola was collected 389 individuals in organic which was 5 times than in conventional in soil sampling. In pitfall trap, that was 183 individuals which was 3 times. The diversity indices of organic pear orchards were 1.956 in May, 2.638 in August and those of conventional was 1.426 in May, 2.011 in August in soil sampling. In pitfall trap, the dominant species were spiders, collembollan, and coleopteran. Among Coleoptera, indicator insects for the evaluation of agricultural environment suggested were Eusilpha jakowelewi as organic pear orchard and Anisodactykus punctatipennis and Pheropsophus jessoensis as conventional. Malaise trap was collected dominant species as Diptera and Hymenoptera of Braconidae and Ichneumonidae. The diversity indices of organic pear orchards were 2.952, 3.120, and 2.010 in pitfall, malaise and black light trap in over ground invertebrate sampling. The highest diversity was in malaise trap. The higher diversity indices, the lower dominance indices.