• Title/Summary/Keyword: INSECT

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Efficacy of Light and Odor Barriers in Controlling Insect Pest Evasion by Modulating Light and Gas Environments

  • Jahyun Na;Jae Hun Yoo;Yong-Hoo Kwon;Sanghun Yeo;Gyung Deok Han
    • Journal of Environmental Science International
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    • v.33 no.8
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    • pp.575-581
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    • 2024

  • Insect pests are a significant threat to stored crops and can lead to considerable economic losses and reduced crop quality. Traditional pest control methods often involve chemical treatments, which have adverse environmental and health effects. This study evaluated the effectiveness of controlling the environment using LED lighting and plant-derived odor barriers as a dual strategy for insect pest control. The storage environment was altered using LED lights that emitted specific wavelengths (580-585 nm) and by reducing other wavelengths (300-500 nm). This light environment was combined with an insect odor barrier derived from Cinnamomum verum, Illicium verum, and Artemisia annua, and their duel impact on the behavior and frequency of insect pests under real storage conditions was determined. The findings revealed significant changes in the frequencies of various insect orders, indicating differential responses to light wavelengths and odor barriers. Notably, the introduction of an anti-insect light and odor barrier environment reduced Diptera and Hemiptera frequencies, which could potentially reduce pest intrusion. The results underscore the potential use of integrated light and odor barriers as a noninvasive and environmentally friendly approach to pest management. This study identifies the specific wavelengths and odor combinations that effectively deter insect pests and contribute to the development of more efficient and sustainable pest control methods. It also highlights the importance of understanding insect behavior and frequency changes in response to novel deterrent strategies.

  • https://doi.org/10.5322/JESI.2024.33.8.575 인용 PDF

TWO-DIMENSIONAL FLOW PROPERTIES OF INSECT FLIGHT ABOUT THRUST GENERATION - VORTEX STAYING AND VORTEX PAIRING PHENOMENA (곤충비행에서 추력발생에 관한 2차원 유동장 특성 - 와류정체 및 와류 짝 현상)

  • Lee, Jung-Sang;Kim, Jin-Ho;Kim, Chong-Am
    • 한국전산유체공학회:학술대회논문집
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    • 2006.10a
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    • pp.126-129
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    • 2006

  • Many researchers have made an effort to explain flight mechanism of flapping insects. As a result, several unsteady mechanisms about lift generation in insect flight have been proposed. But it has a limits to elucidate insect's forward flight and abrupt thrust, because most of these are about insect's hovering flight. For this reason, the objective of this paper is to simulate "Figure-of-eight motion" of insect's wing during tethered flight for comprehending aerodynamic property in insect's forward flight.

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Analysis of Seven Islands with Insect Fauna and Vascular Plant Flora in Gogunsan Archipelago, Korea

  • Hwang, Jeong Ho;Yim, Mean-Young;An, Seung-Lak;Paek, Woon-Kee;Lee, Wang-Hee
    • Proceedings of the National Institute of Ecology of the Republic of Korea
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    • v.3 no.1
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    • pp.23-31
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    • 2022

  • The analysis of seven islands in Gogunsan archipelago, Korea with insect fauna and vascular plant flora was carried out based on a field survey conducted in May, July, and September. As a result, a total of 2,817 insect individuals including 264 species and 315 taxa of vascular plant were recorded. Bangchukdo the largest island among the seven islands showed the largest number both insect species and plant taxa. The similarity analysis suggested that the nearness of each island strongly affected the insect fauna and vascular plant flora on each island. In addition, there was significant correlation between the areas of each island and the numbers of insect species (Spearman's correlation coefficient=0.857, P-value=0.014). In the future, the results of this study can be used as data related to island ecology and conservation.

  • https://doi.org/10.22920/PNIE.2022.3.1.23 인용 PDF