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Health risks of pest control and disinfection workers after the COVID-19 outbreak in South Korea

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Journal of Environmental Sciences 2024年第5期139卷 350-363页

作者： Yun-Hee Choi Da-An Huh Lita Kim Sang ji Lee Kyong Whan Moon Department of Health and Safety Convergence Science Korea UniversityAnam-ro 145Seongbuk-guSeoul 02841South Korea BK21 FOUR R&E Center for Learning Health System Korea UniversityAnam-ro 145Seongbuk-guSeoul 02841South Korea Institute of Sciences Korea UniversityAnam-ro 145Seongbuk-guSeoul 02841South Korea Department of Health and Environmental Science Korea UniversityAnam-ro 145Seongbuk-guSeoul 02841South Korea

The exposure patterns of pest control and disinfection workers have changed after the coronavirus disease 2019(COVID-19)outbreak,but the health risks of chemical exposure have not been *** identified these workers’chemical exposure patterns and risks before and after the COVID-19 *** used data conducted between 2018(pre-pandemic)and 2021(post-pandemic)from three-year cross-sectional surveys on pest control and disinfection *** and dermal exposure concentrations were estimated using equations based on a biocidal product risk assessment model from the Korean National Institute of Environmental *** non-carcinogenic and carcinogenic risks of chemicals were calculated using the United States Environmental Protection Agency risk assessment *** found that the annual work frequency(50^(th)percentile)of foggers using disinfectants increased the most among all the work types,from 140 uses/year to 176 uses/year after the COVID-19 ***,all chemicals’non-carcinogenic and carcinogenic risks increased regardless of exposure *** the worst scenario(95^(th)percentile),the margin of exposure for citric acid,benzethonium chloride,benzyl-C12-16-alkyldimethyl chlorides,and sodium chlorite of inhalation exposure,and isopropyl alcohol and benzyl-C12-16-alkyldimethyl chlorides of dermal exposure were acceptable(>100)before the COVID-19outbreak but became unacceptable(10^(-6))before and after the COVID-19 outbreak but comparatively high after the COVID-19 ***,significantly more workers experienced health symptoms after the COVID-19outbreak(p<0.05),with the most common being muscle lethargy(31%),skin/face stinging(28.7%),and breath shortness/neck pain(24.1%).

关键词： Biocide Disinfection Health risk assessment Occupational exposure pest control

Connecting scales： Achieving in-field pest control from areawide and landscape ecology studies

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Insect Science 2015年第1期22卷 35-51页

作者： Nancy A. Schellhorn Hazel R. Parry Sarina Macfadyen Yongmo Wang Myron P. Zalucki CSlRO Agriculture Flagship Brisbane QLD 4001 Australia C SIRO Agriculture Flagship Canberra ACT 2601 Australia Collegeof Plant Science and Technology Huazhong Agricultural University Wuhan 430070 China School of Biological Sciences TheUniversity of Queensland St Lucia QLD 4072 Australia

Areawide management has a long history of achieving solutions that target pests; however, there has been little focus on the areawide management of arthropod natural enemies. Landscape ecology studies that show a positive relationship between natural enemy abundance and habitat diversity demonstrate landscape-dependent pest suppression, but have not yet clearly linked their findings to pest management or to the suite of pests associated with crops that require control. Instead the focus has often been on model systems of single pest species and their natural enemies. We suggest that management actions to capture pest control from natural enemies may be forth coming if：（i） the suite of response and predictor variables focus on pest complexes and specific management actions; （ii） the contribution of＂the landscape＂ is identified by assessing the timing and numbers of natural enemies immigrating and emigrating to and from the target crop, as well as pests; and （iii） pest control thresholds aligned with crop development stages are the benchmark to measure impact of natural enemies on pests, in turn allowing for comparison between study regions, and generalizations. To achieve pest control we will need to incorporate what has been learned from an ecological understanding of model pest and natural enemy systems and integrate areawide landscape management with in-field pest management.

关键词： ecosystem services entomophagous arthropods integrated pest management (IPM) natural enemies pest control predators and parasitoids

An AIE Star Polymer with Enhanced Co-Delivery of Drug and Gene for Synergistic pest control

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Chinese Journal of Chemistry 2023年第20期41卷 2671-2678页

作者： Bingcheng Zhou Qinhong Jiang Jie Li Shuo Yan Jie Shen Lianying Liu Meizhen Yin State Key Laboratory of Chemical Resource Engineering Beijing Lab of Biomedical MaterialsBeijing University of Chemical TechnologyBeijing100029 China Department of Plant Biosecurity and MARA Key Laboratory of Surveillance and Management for Plant Quarantine pests College of Plant ProtectionChina Agricultural UniversityBeijing100193 China

pesticides,as the most common means of pest managements,have caused a series of problems such as pest resistance and environmental ***-induced emission(AIE)polymers exhibit great potential in biological applications because their fluorescent intensities significantly enhance in the aggregated *** this paper,an AIE star polymer including a tetraphenyl ethylene(TPE)core and poly(2-(dimethylamino)ethyl methacrylate)arms is designed and further developed as a multi-functional nanocarrier for agricultural pest *** nanocarrier shows high water solubility,good size stability and AIE imaging ***,the twisted AIE core and positively charged polymer arms make the nanocarrier efficiently co-load dinotefuran(DIN)and dsRNA via hydrogen bonds and electrostatic interactions,*** AIE star polymer displays low toxicity and high fluorescence *** a result,the nanocarrier co-loading with DIN and dsRNA exhibits a highly synergistic insecticidal effect with higher pest mortality compared to the separate delivery of DIN and *** study develops the AIE star polymer to improve the efficiency of co-delivery of drug and dsRNA and proposes a new strategy toward efficient and synergistic pest control.

关键词： pest control Nano-delivery system Drug nanocarrier Functional polymers Aggregation-induced emission

RNA interference in Colorado potato beetle(Leptinotarsa decemlineata): A potential strategy for pest control

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Journal of Integrative Agriculture 2020年第2期19卷 428-437页

作者： MA Mei-qi HE Wan-wan XU Shi-jing XU Le-tian ZHANG Jiang State Key Laboratory of Biocatalysis and Enzyme Engineering College of Life SciencesHubei University

Colorado potato beetle(CPB),Leptinotarsa decemlineata,is a notorious destructive pest that mainly feeds on the leaves of potato and several other solanaceous *** is widely recognized for its adaptation to a remarkable variety of host plants and diverse climates,and its high resistance to insecticides and Bacillus thuringiensis *** interference(RNAi)is a sequence-specific,endogenous gene silencing mechanism evoked by small RNA molecules that is used as a robust tool for virus and pest *** has been extensively tested for CPB management by employing various target genes and delivery *** article reviews the screening of RNAi target genes,efficient RNAi delivery systems,and factors affecting RNAi efficiency in CPB,which may help understand the mechanisms of RNAi and its application in CPB control strategy.

关键词： Colorado potato beetle double-stranded RNA pest control RNA interference RNAi delivery system

Tending Management and pest control Measures of Pinus koraiensis during Its Growth Period

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Plant Diseases and pests 2023年第1期14卷 31-33页

作者： Jiaxin LUO Benxi Forestry and Grassland Development Service Center Benxi 117000China

Tending management and pest control directly affect forest *** only sustainable growth of timber but also continuous and permanent use of green mountains and water can be achieved by providing tending management measures for sustainable operations and implementing effective pest control *** to the demand of production practice,this paper studies the tending management and pest control measures of Pinus koraiensis forest during its growth period,so as to provide important scientific support for improving the quality of *** forest in the future.

关键词： Pinus koraiensis Tending management pest control

control of a sap-sucking insect pest by plastidmediated RNA interference

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Molecular Plant 2022年第7期15卷 1176-1191页

作者： Yi Dong Mengting Wu Qi Zhang Jinqiu Fu F.Vanessa Loiacono Yong Yang Zican Wang Shengchun Li Ling Chang Ralph Bock Jiang Zhang State Key Laboratory of Biocatalysis and Enzyme Engineering Hubei Hongshan LaboratorySchool of Life SciencesHubei UniversityWuhan 430062China Max-Planck-Institut fur Molekulare Pflanzenphysiologie Am Mühlenberg 1D-14476 Potsdam-GolmGermany

Expression of double-stranded RNAs in plastids offers great potential for the efficient control of chewing ***,many insect pests do not consume plant tissue but rather feed on the host plant by sucking sap from the vascular *** or not plastid-mediated RNA interference(RNAi)can be employed to control sap-sucking insects is ***,we show that five species of sap-sucking hemipteran insects acquire plastid RNA upon feeding on *** generated both nuclear transgenic and transplastomic tobacco plants expressing double-stranded RNAs targeting the MpDhc64C gene,a newly identified efficient target gene of RNAi whose silencing causes lethality to the green peach aphid Myzus *** a whole-plant bioassay,transplastomic plants exhibited significant resistance to aphids,as evidenced by reduced insect survival,impaired fecundity,and decreased weight of *** protective effect was comparable with that conferred by the best-performing nuclear transgenic *** found that the proportion of aphids on mature leaves of transplastomic plants was significantly lower compared with that of nuclear transgenic *** aphids were allowed to *** the mature leaves,transplastomic plants grew significantly faster and were overall better protected from the pest compared with nuclear transgenic *** monitored by electrical-penetration-graph analyses and aphid avoidance response experiments,the insects displayed remarkable alterations in feeding behavior,which was different in nuclear transgenic and transplastomic plants,likely reflecting specific avoidance strategies to toxic RNA *** together,our study demonstrates that plastid-mediated RNAi provides an efficient strategy for controlling at least some sap-sucking insect pests,even though there is most likely no or only very little chloroplast RNA in the sap.

关键词： plastid transformation RNA interference pest control sap-sucking insect aphid hemiptera

Study of a crop-pest-natural enemy model with Z-type control——An approach to pest management

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International Journal of Biomathematics 2023年第4期16卷 175-207页

作者： Dibyendu Sekhar Mandal Sudip Samanta Rana D.Parshad Abdennasser Chekroun Mohamed Helal Joydev Chattopadhyay Department of Mathematics AmityUniversity Maharashtra Mumbai Maharashtra 410206India Agricultural and Ecological Research Unit Indian Statistical Institute 203B.T.Road Kolkata 700108India Department of Mathematics Bankura University WestBengal722155India Department of Mathematics Iowa State University AmesIA 50011USA Laboratoire d'Analyse Nonlineaire et Mathematiques Appliquees University of Tlemcen Tlemcen 13000Algeria Biomathematics Laboratory Universite Sidi Bel-Abbes P.B.8922000Algeria

In this study,the Z-type control method is applied to an intraguild crop-pest-natural enemy model,assuming that the natural enemy can predate on both crop and pest *** this purpose,the indirect Z-type controller is considered in the natural enemy *** providing the design function for the crop-pest-natural enemy model with Z-control,we find the analytical expression of the update *** findings indicate that the uncontrolled system can produce chaos through perioddoubling bifurcation due to crop over-consumption by the pest *** draw a Poincare map to confirm the occurrence of chaos and compute the maximum Lyapunov *** the observations further indicate that the pest population can be controlled by using an indirect Z-control mechanism in the natural enemy population,we postulate that,if natural enemy abundance can be governed by the update parameter,any desired pest population abundance can be achieved through the proposed Z-type controller,thus controlling the *** verify these assertions,extensive numerical simulations are performed to explore the potential for practical application of the proposed Z-type controller.

关键词： Crop-pest-natural enemy model Z-type control numerical simulations pest control

Integrated pest Management System with Impulsive control of Spatial Heterogeneity

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Journal of Partial Differential Equations 2022年第1期35卷 31-48页

作者： ZHOU Hongling SHEN Lin WANG Shu School of Mathematics and Statistics Huanghuai UniversityZhumadian 463000China School of Mathematics Faculty of ScienceBeijing University of TechnologyPing Le Yuan 100Beijing 100124China

An impulsive integrated pest management system with diffusion is investigated within this *** conditions for pest eradication of the impulsive system without natural enemies are established based on the Krein-Rutman theorem and the comparison principle for parabolic *** pest management can be achieved at an exponential rate,when the principal eigenvalues of the auxiliary system is large *** simulations are presented to demonstrate the theoretical results.A discussion is given at the end.

关键词： Integrated pest management eigenvalue problem pest control diffusion

A novel NN based rotor flux MRAS to overcome low speed problems for rotor resistance estimation in vector controlled IM drives

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Frontiers in Energy 2016年第4期10卷 382-392页

作者： Venkadesan ARUNACHALAM Himavathi SRINWASAN A. MUTHURAMALINGAM Department of Electrical and Electronics Engineering National Instituteof Technology Puducherry Karaikal 609605 India Department of Electrical and Electronics Engineering PondicherryEngineering College Puducherry 605014 India

This paper presents a new neural network based model reference adaptive system （MRAS） to solve low speed problems for estimating rotor resistance in vector control of induction motor （IM）. The MRAS using rotor flux as the state variable with a two layer online trained neural network rotor flux estimator as the adaptive model （FLUX-MRAS） for rotor resistance estimation is popularly used in vector control. In this scheme, the reference model used is the flux estimator using voltage model equations. The voltage model encounters major drawbacks at low speeds, namely, integrator drift and stator resistance variation problems. These lead to a significant error in the estimation of rotor resistance at low speed. To address these problems, an ofltine trained NN with data incorporating stator resistance variation is proposed to estimate flux, and used instead of the voltage model. The ofttine trained NN, modeled using the cascade neural network, is used as a reference model instead of the voltage model to form a new scheme named as ＂NN-FLUX- MRAS.＂ The NN-FLUX-MRAS uses two neural net- works, namely, otttine trained NN as the reference model and online trained NN as the adaptive model. The performance of the novel NN-FLUX-MRAS is compared with the FLUX-MRAS for low speed problems in terms of integral square error 0SE）, integral time square error （ITSE）, integral absolute error （IAE） and integral time absolute error （ITAE）. The proposed NN-FLUX-MRAS is shown to overcome the low speed problems in Matlab simulation.

关键词： rotor resistance stator resistance low speed Error analysis pest control ITAE Instant messaging Vector control MRAS gene rotor flux State variable reference model