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Correction:Making the Complicated Simple:A Minimizing Carrier Strategy on Innovative Nanopesticides
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作者 Wenjie Shangguan Qiliang Huang +6 位作者 Huiping Chen Yingying Zheng Pengyue Zhao Chong Cao Manli Yu Yongsong Cao Lidong Cao 《Nano-Micro Letters》 SCIE EI CAS CSCD 2024年第11期174-176,共3页
The Nano-Micro Letters(2024)16:193,article by Shangguan et al.,entitled“Making the Complicated Simple:A Minimizing Carrier Strategy on Innovative Nanopesticides”(Nano-Micro Lett.https://doi.org/10.1007/s40820-024-01... The Nano-Micro Letters(2024)16:193,article by Shangguan et al.,entitled“Making the Complicated Simple:A Minimizing Carrier Strategy on Innovative Nanopesticides”(Nano-Micro Lett.https://doi.org/10.1007/s40820-024-01413-5),was published online on 14 May,2024,with errors.The structural formulas and captions of the three acyl chlorides in Fig.3A were wrong.They should be as shown below. 展开更多
关键词 pesticides FORMULAS structural
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Evaluation of Agricultural Contamination Level by Heavy Metals and Pesticides in Sediments of Rivers and Water Bodies for Shrimp Fishing in the Lower Ouémé: Case of the Aguigadji, Ahlan and Sele Stations in Benin
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作者 Souradjou Orou Goura Fadéby Modeste Gouissi +3 位作者 Armelle Sabine Yélignan Hounkpatin Wakili Bolatito Yessoufou Tayéwo Sylvain Biaou Nonvignon Martial Fassinou 《Advances in Materials Physics and Chemistry》 CAS 2024年第2期25-46,共22页
This study assessed sediment contamination by heavy metals and pesticide active ingredients linked to chemical inputs used in agricultural activities in the lower Ouémé. Pesticide residues from the organochl... This study assessed sediment contamination by heavy metals and pesticide active ingredients linked to chemical inputs used in agricultural activities in the lower Ouémé. Pesticide residues from the organochlorine, pyrethroid and organophosphorus families were investigated by gas chromatography, and heavy metals (Cd, Pb, As, Ni, Zn, Fe, Mg, Cr and Hg) by atomic absorption spectrophotometry. The metallic pollution indices, the contamination factor (CF) and the ecological risk index were calculated. The results revealed 8 active ingredients in the rainy season and 9 in the dry season. Glyphosate was the active ingredient with the highest concentration at all stations, 9.65 ± 0.84 mg/kg recorded in the dry season at the Aguigadji station. All glyphosate values were above the EQS. DDT, Atrazine and Endosulfan also showed high concentrations in the dry and rainy seasons. Emamectin, Abamectin and Lambda Cyhalothrin also showed high concentrations in the dry season at Aguigadji, Ahlan and Sele. Only glyphosate was recorded at the control station (Toho), but in very low concentrations. Lead showed the highest concentrations at all the stations, 265.96 ± 21.02 mg/Kg in the rainy season and 255.38 ± 79.09 mg/Kg in the dry season, all detected at the Aguigadji station and above the EQS. Zn, Ni, Fe, Cu and Cr were all representative in both the dry and rainy seasons at the contaminated stations. Manganese showed high concentrations in the rainy season. Pb showed very high contamination (FC ≥ 6) at the Aguigadji and Ahlan stations and significant contamination (3 ≤ FC 6) at the Sele station in both the rainy and dry seasons. Ni, Hg and Cd, showed either moderate or significant contamination at the contaminated stations. The risk values showed a considerable ecological Ri (190 ≤ Ri < 380) in the rainy season and a moderate ecological Ri (95 ≤ Ri < 190) in the dry season at these contaminated stations. 展开更多
关键词 pesticides Heavy Metals SEDIMENTS Shrimp Fishing Area Lower Ouémé
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Resistance Monitoring of Field Populations of Panonychus citri to Three Pesticides
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作者 Yang HAN Tingmi YANG 《Plant Diseases and Pests》 2024年第2期4-8,共5页
[Objectives]The paper was to investigate the development of Panonychus citri resistance to commonly used pesticides in major citrus producing areas in China,and to screen out new green and efficient agents for its con... [Objectives]The paper was to investigate the development of Panonychus citri resistance to commonly used pesticides in major citrus producing areas in China,and to screen out new green and efficient agents for its control and prevention.[Methods]The resistance changes of field populations of P.citri to abamectin,pyridaben,and bifenazate in 12 locations across five provinces in China were compared using the leaf disc impregnation method.[Results]P.citri in the tested areas exhibited the most severe resistance to abamectin,with approximately 91.7%of the field populations showing high levels of resistance to abamectin(112.1-560.5 times);50%of P.citri populations exhibited high levels of resistance to pyridaben(123.0-202.7 times),while the remaining populations showed intermediate levels of resistance(25.6-80.3 times);except for the Zhejiang Xiangshan 2019 and Jiangxi Yudu 2019 populations,which exhibited a medium level of resistance to bifenazate,the remaining 10 monitored populations demonstrated a high level of resistance to bifenazate(140.4-686.1 times).[Conclusions]It is advisable to discontinue the use of abamectin and bifenazate due to significant resistance observed in populations of P.citri monitored in 12 locations across 5 provinces.It is recommended to reduce the frequency of pyridaben use and alternate with other acaricides that have different mechanisms of action due to the varying degrees of resistance developed. 展开更多
关键词 Panonychus citri RESISTANCE pesticidE Biological activity
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Sensitivity of Commercial Enzyme Inhibition Colorimetric Pesticide Residue Rapid Test Kit to a Variety of Pesticides
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作者 Junxia LUO Qianqian ZHAO +4 位作者 Lumei DUAN Yanzhen LI Huifang QIAO Zhipei DOU Jianbo ZHAO 《Asian Agricultural Research》 2024年第5期29-32,共4页
[Objectives]To fully understand the quality of commercial enzyme inhibition-colorimetric pesticide residue rapid detection kits,so that they can play a greater role in the detection and supervision of agricultural pro... [Objectives]To fully understand the quality of commercial enzyme inhibition-colorimetric pesticide residue rapid detection kits,so that they can play a greater role in the detection and supervision of agricultural products.[Methods]The sensitivity of 28 kinds of pesticides was determined by using the commercially available enzyme inhibition colorimetric rapid detection kit with Hendu brand.[Results]There was a significant difference in the sensitivity of the kit to each pesticide,and the kit was more sensitive to dichlorvos among the 28 pesticides tested.The sensitivity to methyl isosalifos,dimethoate,isocarbophos,fenthion and phorate was poor,and the sensitivity to quinalphos was different between 3.0 and 2.5 mL.[Conclusions]The large difference of the sensitivity of the enzyme inhibition-colorimetric rapid detection kit for pesticide residues to different kits is a reason for the false positive and false negative test results of the kit,which needs to be considered by relevant personnel. 展开更多
关键词 Enzyme inhibition-colorimetry Reagent kit pesticidE Inhibition rate Sensitivity
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Agricultural Contamination of the Surface Waters of the Upper Ouémé in Benin: The Case of Heavy Metals and Pesticides
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作者 Armelle Sabine Yélignan Hounkpatin Nonvignon Martial Fassinou +5 位作者 Fadéby Modeste Gouissi Zoulkanerou Orou Piami Dossou Armel Géraldo Houndeton Souradjou Orou Goura Wakili Bolatito Yessoufou Tayéwo Sylvain Biaou 《Journal of Agricultural Chemistry and Environment》 2024年第1期83-99,共17页
Objective: The main objective of this study was to assess the degree of contamination of surface waters by heavy metals and pesticides. Method: To this end, data were collected in December 2022 from four specific samp... Objective: The main objective of this study was to assess the degree of contamination of surface waters by heavy metals and pesticides. Method: To this end, data were collected in December 2022 from four specific sampling stations: Okpara, Térou, Affon and Adjiro. Levels of heavy metals, including cadmium, chromium, copper, iron, mercury, nickel and lead, were measured and subjected to in-depth statistical analysis using graphical summation models. In addition, the concentrations of pesticide active ingredients present in the samples were interpreted and evaluated. The statistical data collected during this study were processed using R software, version 3.5.0. Results: The values obtained at the different stations Okpara, Térou, Affon and Adjiro are respectively Arsenic (2 × 10<sup>-4</sup> mg/L;2.2 × 10<sup>-1</sup> mg/L;1.2 × 10<sup>-4</sup> mg/L;2 × 10<sup>-4</sup> mg/L), Cadmium (4.4 × 10<sup>-5</sup> mg/L;1.1 × 10<sup>-2</sup> mg/L;10<sup>-4</sup> mg/L;4 × 10<sup>-4</sup> mg/L). Then Copper (7 × 10<sup>-4</sup> mg/L;3 × 10<sup>-3</sup> mg/L;7 × 10<sup>-4</sup> mg/L;1 × 10<sup>-4</sup> mg/L), Iron (1.51 mg/L;6.4 × 10<sup>-1</sup> mg/L;2.0012 mg/L;2.9 × 10<sup>-1</sup> mg/L), Lead (0 mg/L;0 mg/L;1.5 × 10<sup>-3</sup> mg/L;1.5 × 10<sup>-3</sup> mg/L). Mercury, nickel and chromium were not detected in surface waters. It is important to note that the values obtained for trace metals (Cadmium, Chromium, Copper, Iron, Mercury, nickel and chromium were not detected in surface waters. It is important to note that the values obtained for trace metals (cadmium, chromium, copper, iron, mercury, nickel and lead) were all below the guideline standards set by the WHO in 2006 for uncontaminated surface waters. This indicates that the surface waters of the Upper Ouémé were below acceptable contamination thresholds in terms of heavy metals. However, the presence of pesticide active ingredients such as cyfluthrin, endosulfan-alpha, endosulfan-beta, profenosfos, tihan, atrazine, gala super and glycel clearly indicates that these surface waters are subject to agricultural contamination. 展开更多
关键词 Agricultural Contamination Heavy Metals pesticides Surface Water North Benin
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Cross-kingdom regulation by plant-derived miRNAs in mammalian systems 被引量:1
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作者 Linpu Yang Han Feng 《Animal Models and Experimental Medicine》 CAS CSCD 2023年第6期518-525,共8页
MicroRNAs(miRNAs)are small noncoding RNA molecules ubiquitously distributed across diverse organisms,serving as pivotal regulators of genetic expression.Notably,plant-derived miRNAs have been demonstrated to have uniq... MicroRNAs(miRNAs)are small noncoding RNA molecules ubiquitously distributed across diverse organisms,serving as pivotal regulators of genetic expression.Notably,plant-derived miRNAs have been demonstrated to have unique bioactivity and certain stability in mammalian systems,thereby facilitating their capacity for cross-kingdom modulation of gene expression.While there is substantial evidence supporting the regulation of mammalian cells by plant-derived miRNAs,several questions remain unanswered.Specifically,a comprehensive investigation of the mechanisms underlying the stability and transport of plant miRNAs and their cross-kingdom regulation of gene expression in mammals remains to be done.In this review,we summarized the origin,processing,and functional mechanisms of plant miRNAs in mammalian tissues and circulation,emphasizing their greater resistance to mammalian digestion and circulation systems compared to animal miRNAs.Additionally,we introduce four well-known plant miRNAs that have been extensively studied for their functions and mechanisms in mammalian systems.By delving into these aspects,we aim to offer a fundamental understanding of this intriguing field and shed light on the complex interactions between plant miRNAs and mammalian biology. 展开更多
关键词 cross-kingdom REGULATION plant-derived microRNAs
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Regional selection of insecticides and fungal biopesticides to control aphids and thrips and improve the forage quality of alfalfa crops 被引量:2
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作者 PAN Fan GAO Li-jie +6 位作者 ZHU Kai-hui DU Gui-lin ZHU Meng-meng ZHAO Li GAO Yu-lin TU Xiong-bing ZHANG Ze-hua 《Journal of Integrative Agriculture》 SCIE CAS CSCD 2023年第1期185-194,共10页
The efficacies of biological and conventional chemical insecticides against two major insect pests of alfalfa(aphids and thrips)were compared in three sites across China’s alfalfa belt.In addition,the persistence of ... The efficacies of biological and conventional chemical insecticides against two major insect pests of alfalfa(aphids and thrips)were compared in three sites across China’s alfalfa belt.In addition,the persistence of the residues of chemical insecticides in alfalfa and their influence on the quality of alfalfa hay were examined.Efficacy varied among the different biological and chemical insecticides.The chemical insecticides were significantly more effective than biopesticides in a short time-frame.The efficacy period of biopesticides was significantly longer than that of chemical insecticides,and the corrected mortality rate of aphids in all regions was above 50%at 14 days after application.The analysis of pesticide residues showed that the residual doses of all the pesticides were within the allowed ranges after the safe period.The acid detergent fiber and neutral detergent fiber contents in alfalfa hay were higher and the protein content was lower in chemical insecticide treatments than in biopesticide treatments in Hebei.The relative feeding value of alfalfa hay treated with Metarhizium anisopliae IPP330189 was the highest among the treatments.Compared with chemical insecticides,the yield of alfalfa hay was higher in the biopesticides treatments.Biopesticides show a stronger control effect on insect populations and also a better improvement in the quality of alfalfa hay than chemical insecticides.This study provides a basis for exploring and developing a comprehensive control regime for alfalfa insect pests in the different alfalfa-growing regions in China,and for reducing chemical insecticide usage and improving forage quality. 展开更多
关键词 insect pest control pollution free control pesticide residue APHIDS THRIPS
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Recognition mechanism and sequence optimization of organophosphorus pesticides aptamers for better monitoring contaminations in food 被引量:1
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作者 Pengfei Chen Chaoqiong Hu +6 位作者 Xuan Tao Zheng Zhou Lijun Wang Xiao Yang Zhenming Che Xianggui Chen Yukun Huang 《Food Science and Human Wellness》 SCIE CSCD 2023年第5期1708-1715,共8页
Aptamers as a kind of biological recognition element have shown great potential in monitoring and the rapid quantification of organophosphorus pesticides(OPPs). However, molecules of OPPs are structurally similar and ... Aptamers as a kind of biological recognition element have shown great potential in monitoring and the rapid quantification of organophosphorus pesticides(OPPs). However, molecules of OPPs are structurally similar and original aptamers selected by systematic evolution of ligands by exponential enrichment are usually long-chain bases, which hamper the further application under OPPs-aptamer recognition. The aim of the research was to develop a new strategy to design oligonucleotide sequences for binding OPPs by combination of experimental and molecular modeling methods. 3D models of aptamers binding OPPs were constructed, and binding energy and the most probable binding site for the OPPs were then determined by molecular docking, and the binding sites were further confirmed by the results of 2-AP replaced experiments. Based on the docking results, a new aptamer for detection 4 representative OPPs with only 29 bases was designed by reasonable truncation and mutation of the reported aptamer(named S4-29). The interaction between this new aptamer and OPPs were analyzed by molecular docking, microscale thermophoresis, circular dichroism and fluorometric analysis. The results revealed that the new aptamer exhibit more superior recognition performance to OPPs, which can be promote the monitoring ability of OPPs contaminations in food. 展开更多
关键词 Organophosphorus pesticides APTAMER Recognition mechanism Sequence optimization
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Efficacy of High-efficiency Formula Pesticides for Controlling Sesamia inferens Walker and Ceratovacuna lanigera Zehntner
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作者 Yongde MA Xiaoyan WANG +3 位作者 Yinhu LI Hongli SHAN Rongyue ZHANG Yingkun HUANG 《Agricultural Biotechnology》 CAS 2023年第2期42-44,47,共4页
[Objectives]This study was conducted to screen high-efficiency formula pesticides and precise and efficient application techniques for the prevention and control of Sesamia inferens Walker and Ceratovacuna lanigera Ze... [Objectives]This study was conducted to screen high-efficiency formula pesticides and precise and efficient application techniques for the prevention and control of Sesamia inferens Walker and Ceratovacuna lanigera Zehntner.[Methods]Field efficacy trials were conducted using different combinations of 70%directed enhanced thiamethoxam seed treatment dispersible powder and 46%monosultap·Bacillus thuringiensis wettable powder.[Results]70%directed enhanced thiamethoxam ZF 450 g/hm^(2)+46%monosultap·B.thuringiensis WP 2250 g/hm^(2)had good control effects on both S.inferens and C.lanigera,so it was an ideal high-efficiency formula pesticide for controlling sugarcane S.inferens and C.lanigera.From January to May,combining with new plant or perennial root cultivation management,70%directed enhanced thiamethoxam ZF 450 g/hm^(2)can be evenly spread on sugarcane ditches and sugarcane stumps after being well mixed with fertilizers applied per hectare,and covered with soil in a timely manner,and during the peak incubation period of the first and second generation of S.inferens eggs from March to May,46%monosultap·B.thuringiensis WP 2250 g/hm^(2)was sprayed to the leaf surface in the mixture with water 675 kg with an electric backpack or a motorized sprayer.In such a way,the control efficacy on dead heart seedlings could reach over 89.8%,and that on C.lanigera could reach 100%.Meanwhile,it could effectively and concurrently control thrips,and the increases in yield and sugar content could reach 29310 kg/hm^(2)and 5.9 percentage points,respectively.[Conclusions]The promotion and application of the formula pesticide could achieve precise application and control of sugarcane pests,and improvement of sugarcane quality and planting efficiency,and help promote green prevention and control of sugarcane diseases and pests and the sustained high-quality development of the sugar industry. 展开更多
关键词 SUGARCANE Efficient formula pesticide Accurate application of pesticides Sesamia inferens Walker Ceratovacuna lanigera Zehntner Control efficacy evaluation
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Problems in the Use of Pesticides by Farmers and Countermeasures
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作者 Xiaofei BAI 《Plant Diseases and Pests》 CAS 2023年第5期1-4,共4页
Pesticide safety is an important guarantee for food security.At present,there are many problems in the process of choosing pesticides by farmers,such as low discernment ability and difficulty in retroactive blame,slow... Pesticide safety is an important guarantee for food security.At present,there are many problems in the process of choosing pesticides by farmers,such as low discernment ability and difficulty in retroactive blame,slow replacement of medical equipment,slow promotion of technology assistance,lack of professional knowledge,difficult to grasp the key points of application,improper use of pesticides,large resistance to reducing quantity and increasing efficiency,etc.In order to use pesticides rationally and realize safe production,countermeasures and suggestions on pesticide application are put forward from the aspects of drug development and application,promotion of biopesticides,change of farmers concept and cultivation of new farmers. 展开更多
关键词 FARMER pesticide safety Agricultural technology Medical equipment
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Study on Antibacterial Efficacy of Plant-Derived Compound Preservative and Its Product Application
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作者 Dai Zhaoyang Hu Liyun +3 位作者 Li Fuyan Ai Yong Zhang Wenyun Zhang Bing 《China Detergent & Cosmetics》 2023年第1期52-59,共8页
Natural antiseptic formulas are increasingly favored by consumers. This article take preservatives compounded from cinnamon, sophora flavescens and other plant extracts as the main research object, evaluated its antib... Natural antiseptic formulas are increasingly favored by consumers. This article take preservatives compounded from cinnamon, sophora flavescens and other plant extracts as the main research object, evaluated its antibacterial efficacy and application in cosmetics, expect that it can be used in cosmetics to replace conventional chemical preservatives. Research on its antibacterial efficacy through inhibition zone and MIC experiment, and product application research used anti-corrosion challenge and antibacterial rate experiment. The results showed that the plant-derived antiseptic system had a broad antibacterial spectrum, inhibition of 10 different common pathogenic bacteria, and had a very significant inhibitory effect on Gram-positive bacteria and fungi;Among them, the diameter of the antibacterial circle for Bacillus subtilis and Aspergillus niger can reached 31.89 mm and 28.26 mm, while the MIC value was 0.4 mg/mL and 0.8 mg/mL. The spray product with 1.5% addition amount successfully passed the anti-corrosion challenge test and meets the anti-corrosion standard requirements;The 2% added amount of disposable gel product has an inhibitory rate of 51.05% and 70.74% against Escherichia coli and Staphylococcus aureus within 20 minutes of action. In summary, the plantderived compound preservative has ability to be used in cosmetic preservative systems. 展开更多
关键词 plant-derived compound antibacterial effect COSMETIC anti-corrosion performance
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The Role of Abdominal CT in the Assessment of the Effectiveness of Gastric Lavage after Pesticide Poisoning
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作者 Minghui Gong Zhengdong Wan 《Journal of Biosciences and Medicines》 2024年第5期293-299,共7页
Pesticide poisoning is one of the most common diseases in the emergency department, characterized by rapid changes in condition, a high misdiagnosis rate, and a poor prognosis. Measures for early removal of poisons ar... Pesticide poisoning is one of the most common diseases in the emergency department, characterized by rapid changes in condition, a high misdiagnosis rate, and a poor prognosis. Measures for early removal of poisons are crucial, and gastric lavage is one of the important measures. Regarding the post-gastric lavage effect, abdominal CT scanning has an important application value in the assessment of the gastric lavage effect after pesticide poisoning. 展开更多
关键词 Abdominal CT Gastric Lavage pesticide Poisoning ASSESSMENT
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On-site rapid detection of multiple pesticide residues in tea leaves by lateral flow immunoassay
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作者 Junxia Gao Tianyi Zhang +7 位作者 Yihua Fang Ying Zhao Mei Yang Li Zhao Ye Li Jun Huang Guonian Zhu Yirong Guo 《Journal of Pharmaceutical Analysis》 SCIE CAS CSCD 2024年第2期276-283,共8页
The application of pesticides (mostly insecticides and fungicides) during the tea-planting process will undoubtedly increase the dietary risk associated with drinking tea. Thus, it is necessary to ascertain whether pe... The application of pesticides (mostly insecticides and fungicides) during the tea-planting process will undoubtedly increase the dietary risk associated with drinking tea. Thus, it is necessary to ascertain whether pesticide residues in tea products exceed the maximum residue limits. However, the complex matrices present in tea samples comprise a major challenge in the analytical detection of pesticide residues. In this study, nine types of lateral flow immunochromatographic strips (LFICSs) were developed to detect the pesticides of interest (fenpropathrin, chlorpyrifos, imidacloprid, thiamethoxam, acetamiprid, carbendazim, chlorothalonil, pyraclostrobin, and iprodione). To reduce the interference of tea substrates on the assay sensitivity, the pretreatment conditions for tea samples, including the extraction solvent, extraction time, and purification agent, were optimized for the simultaneous detection of these pesticides. The entire testing procedure (including pretreatment and detection) could be completed within 30 min. The detected results of authentic tea samples were confirmed by ultra-performance liquid chromatography-tandem mass spectrometry (UPLC-MS/MS), which suggest that the LFICS coupled with sample rapid pretreatment can be used for on-site rapid screening of the target pesticide in tea products prior to their market release. 展开更多
关键词 Lateral flow immunoassay Rapid detection pesticide multi-residue Tea matrix Sample rapid pretreatment
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Coordination of distinctive pesticide adjuvants and atomization nozzles on droplet spectrum evolution for spatial drift reduction
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作者 Shidong Xue Jingkun Han +3 位作者 Xi Xi Zhong Lan Rongfu Wen Xuehu Ma 《Chinese Journal of Chemical Engineering》 SCIE EI CAS CSCD 2024年第2期250-262,共13页
Pesticide adjuvants,as crop protection products,have been widely used to reduce drift loss and improve utilization efficiency by regulating droplet spectrum.However,the coordinated regulation mechanisms of adjuvants a... Pesticide adjuvants,as crop protection products,have been widely used to reduce drift loss and improve utilization efficiency by regulating droplet spectrum.However,the coordinated regulation mechanisms of adjuvants and nozzles on droplet spectrum remain unclear.Here,we established the relationship between droplet spectrum evolution and liquid atomization by investigating the typical characteristics of droplet diameter distribution near the nozzle.Based on this,the regulation mechanisms of distinctive pesticide adjuvants on droplet spectrum were clarified,and the corresponding drift reduction performances were quantitively evaluated by wind tunnel experiments.It shows that the droplet diameter firstly shifts to the smaller due to the liquid sheet breakup and then prefers to increase caused by droplet interactions.Reducing the surface tension of sprayed liquid facilitates the uniform liquid breakup and increasing the viscosity inhibits the liquid deformation,which prolong the atomization process and effectively improve the droplet spectrum.As a result,the drift losses of flat-fan and hollow cone nozzles are reduced by about 50%after adding organosilicon and vegetable oil adjuvants.By contrast,the air induction nozzle shows a superior anti-drift ability,regardless of distinctive adjuvants.Our findings provide insights into rational adjuvant design and nozzle selection in the field application. 展开更多
关键词 pesticide drift Spray droplets Particle size distribution Spray atomization Transport processes ADJUVANTS
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Research Progress of QuEChERS Pretreatment Technique in the Detection of Multiple Pesticide Residues
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作者 Bo LIU Dawei WANG +3 位作者 Yuhang GUO Xuehua WANG Lei WANG Yajuan SONG 《Agricultural Biotechnology》 2024年第2期10-11,37,共3页
The QuEChERS extraction technique is a pretreatment technique that has been rapidly applied in recent years and is widely used in the field of pesticide residues with many advantages. This technique is based on solid ... The QuEChERS extraction technique is a pretreatment technique that has been rapidly applied in recent years and is widely used in the field of pesticide residues with many advantages. This technique is based on solid phase extraction (SPE), which uses the interaction between adsorbent and impurities in the matrix to achieve the purpose of purification. The method has easier operation and better purification effect than SPE. In this paper, the research progress of the QuEChERS technique in pesticide residue detection in different fields in recent years and its future development were reviewed, hoping to provide reference for further development and utilization of the QuEChERS technique in pesticide residue detection in the future. 展开更多
关键词 QUECHERS PRETREATMENT pesticide residues Research progress
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Determination of 14 Organophosphorus Pesticide Residues in Mutton by Gel Permeation Chromatography-Gas Chromatography-Mass Spectrometry(GPC-GC-MS)
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作者 Junpeng ZHAO Richard Avoi +2 位作者 Azman Bin Atil@Azmi Jiao CHEN Ling YUN 《Agricultural Biotechnology》 2024年第3期28-30,33,共4页
[Objectives]This study was conducted to purify mutton samples by gel permeation chromatography(GPC).[Methods]Fourteen organophosphorus pesticide residues in samples were qualitatively and quantitatively analyzed by ga... [Objectives]This study was conducted to purify mutton samples by gel permeation chromatography(GPC).[Methods]Fourteen organophosphorus pesticide residues in samples were qualitatively and quantitatively analyzed by gas chromatography-mass spectrometry(GC-MS)in selective ion scanning mode(SIM).[Results]The organophosphorus pesticide standard solutions showed good linearity in the mass concentration range of 0.1-10.0μg/ml with correlation coefficients(r)not lower than 0.999,and the detection limits(S=3 N)ranged from 0.01 to 0.05 mg/kg.The average recovery values were in the range of 80.2%-99.7%,with relative standard deviations(RSDs,n=3)in the range of 1.8%-6.3%,at the addition levels of 0.5,1.0 and 2.0 mg/kg.[Conclusions]The method is simple,sensitive and accurate,and can be used for the determination of organophosphorus pesticide residues in mutton. 展开更多
关键词 MUTTON Gas chromatography-mass spectrometry Gel permeation chromatography ORGANOPHOSPHORUS pesticide residue
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Control Effect of Botanical Pesticides against Ectropis oblique hmpulina and Empoasca pirisuga in Tea Plantation 被引量:6
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作者 周顺玉 尹健 马俊义 《Plant Diseases and Pests》 CAS 2011年第4期68-71,共4页
[ Objective ] The paper was to study the effects of several botanical pesticides against two pests in tea plantation. [ Method] Using randomized block de- sign, different concentrations of botanical pesticides were sp... [ Objective ] The paper was to study the effects of several botanical pesticides against two pests in tea plantation. [ Method] Using randomized block de- sign, different concentrations of botanical pesticides were sprayed during the young larvae periods of Ectropis oblique hmpulina Wehrli and peak periods of Empoasca pirisuga, the reduction rate of population and control effects were investigated after spraying for 1,3,7 and 10 d. [ Result] 5% rotenone EC 800 times had the best control effect against E. oblique hmpulina, and 0.5% veratridine soluble liquid 800 times had the best control effect against E. pirisuga. 0. 5% veratridine soluble liquid, 0.2% celangulin EC, 0.3% matrine water agent and 7.5% rotenone EC could be selected as the pesticides for the control of E. oblique hmpulina; 0. 5% veratridine soluble liquid, 0. 2% celangulin EC, 0.3% azadirachtin EC, 0.3% matrine water agent and 7.5% rotenone EC could be selected as the pesticides for the control of E. pirisuga, of which 0. 3% azadiraehtin EC 600 times showed the best durable effect against E. pirisuga with control effect of 100% after spraying for 7 d. [ Conclusion] The results provided basis for application of botanical pesticides in pests control in tea plantation. 展开更多
关键词 Botanical pesticides E. oblique hmpulina E. pirisuga CONTROL China
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Selection of High-efficient Safe Pesticides for Controlling Tea Lesser Leafhopper(Empoasca vitis) 被引量:4
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作者 周子燕 胡本进 +4 位作者 徐丽娜 胡飞 李昌春 高同春 苏卫华 《Agricultural Science & Technology》 CAS 2016年第7期1651-1653,共3页
[Objective] This study was conducted to select a batch of new high-effi- cient low-toxicity high-selectivity pesticides for the application in tea gardens. [Method] This experiment was designed with 12 treatments incl... [Objective] This study was conducted to select a batch of new high-effi- cient low-toxicity high-selectivity pesticides for the application in tea gardens. [Method] This experiment was designed with 12 treatments including clear water as the CK, in randomized block arrangement, with 4 replications, and each plot had an area of 30 m2. The pesticides were sprayed in the high occurrence period of larvae of tea lesser leafhopper when tea shoots grew vigorously. [Result] In the 11 pesti- cides, 100 g/L bifenthrin EC , 70% imidacloprid WDG and 150 g/L indoxacarb EC were the best pesticides with efficacies above 90%; and in the bio-pesticides, 0.5% azadirachtin SC showed an efficacy over 87.97%. [Conclusions] Among the tested pesticides, 100 g/L bifenthrin EC , 70% imidacloprid WDG and 150 g/L indoxacarb EC could effectively control tea lesser leafhopper during the outbreak of tea lesser leafhopper, and when the occurrence degree of tea lesser leafhopper is below the medium level, environment-friendly 0.5% azadirachtin SC, 0.5% veratrine SC, 0.3% matrine SC and 4.0×10^10 spores/g Beauveria bassiana OD could be selected. 展开更多
关键词 TEA Tea lesser leafhopper pesticides EFFICACY
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Application of Biological Pesticides in Medicinal Plants 被引量:1
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作者 孙秀娟 张永清 李佳 《Agricultural Science & Technology》 CAS 2013年第2期302-307,共6页
At present, the excessive application of traditional chemical pesticides, serious pesticide residue pollution and destruction of the ecological balance in China have become important factors affecting the quality and ... At present, the excessive application of traditional chemical pesticides, serious pesticide residue pollution and destruction of the ecological balance in China have become important factors affecting the quality and safety of medicinal material. Biological pesticides are rapidly developed due to their characteristics of high efficiency, low toxicity and residue. This study aimed to introduce the specific property of biological pesticides, review the classification of biological pesticides and their application in medicinal plants, analyze the problems in the production and utilization process of biological pesticides, and forecast the developmental prospect. 展开更多
关键词 Biological pesticides Chemical pesticides Medicinal plant Plant insect pests
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Advance of Studies on Pesticides Resistance of Parasitoids 被引量:5
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作者 李增梅 岳晖 +1 位作者 邓立刚 赵平娟 《吉林农业科学》 CSCD 2009年第1期36-39,共4页
抗性寄生蜂的应用是IPM中生防和化防相结合的重要措施之一。本文综述了寄生蜂与杀虫剂的关系、寄生蜂抗药性与其性别的关系、寄生蜂抗药性的稳定性及其抗性机理。
关键词 寄生蜂 抗药性 杀虫剂
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