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Recent Advances of Natural Products in Pesticides
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Recent Advances of Natural Products in Pesticides

A special issue of Molecules (ISSN 1420-3049). This special issue belongs to the section "Natural Products Chemistry".

Deadline for manuscript submissions: closed (31 October 2023) | Viewed by 4536

Special Issue Editors

Prof. Dr. Yahui Li

E-Mail Website
Guest Editor
School of Resources and Environment, Anhui Agricultural University, Hefei, China
Interests: organic synthesis; Insecticide; heterocycle; natural product; agrochemicals
Prof. Dr. Pei Li

E-Mail Website
Guest Editor
Qiandongnan Engineering and Technology Research Center for Comprehensive Utilization of National Medicine, Kaili University, Kaili, China
Interests: pesticide synthesis; fungicide; natural product; organic synthesis; green pesticide
Special Issues, Collections and Topics in MDPI journals

Special Issue Information

Dear Colleagues,

Global food safety has attracted worldwide concern. Plant pests and diseases have posed a great threat to food safety at different stages of the food chain. Human beings have a long history in using natural products to control agricultural pests. Compared with traditional chemical pesticides, natural pesticides have the following advantages: 1) Safety. Because natural products are inherent in nature, and there are degradation and metabolism pathways in the ecological environment, they will not cause environmental problems such as residue and enrichment after being applied as pesticides. 2) Many natural products have complex structures and many active ingredients, and thus, pests cannot easily develop resistance to them. At the same time, the action mechanism of these active ingredients is different from that of existing traditional chemicals. 3) With the improvement of research technology, the active components of natural products are gradually being identified, and then, these active components can be used as lead compounds to synthesize new pesticides, which can greatly improve the efficiency reduce the cost of new pesticide development.

This Special Issue intends to highlight the recent advances in novel natural product pesticides. Manuscripts submitted should present recent advances in novel natural product pesticides and other relevant research fields.

Prof. Dr. Yahui Li
Prof. Dr. Pei Li
Guest Editors

Manuscript Submission Information

Manuscripts should be submitted online at www.mdpi.com by registering and logging in to this website. Once you are registered, click here to go to the submission form. Manuscripts can be submitted until the deadline. All submissions that pass pre-check are peer-reviewed. Accepted papers will be published continuously in the journal (as soon as accepted) and will be listed together on the special issue website. Research articles, review articles as well as short communications are invited. For planned papers, a title and short abstract (about 100 words) can be sent to the Editorial Office for announcement on this website.

Submitted manuscripts should not have been published previously, nor be under consideration for publication elsewhere (except conference proceedings papers). All manuscripts are thoroughly refereed through a single-blind peer-review process. A guide for authors and other relevant information for submission of manuscripts is available on the Instructions for Authors page. Molecules is an international peer-reviewed open access semimonthly journal published by MDPI.

Please visit the Instructions for Authors page before submitting a manuscript. The Article Processing Charge (APC) for publication in this open access journal is 2700 CHF (Swiss Francs). Submitted papers should be well formatted and use good English. Authors may use MDPI's English editing service prior to publication or during author revisions.

Keywords

  • natural product pesticides
  • agrochemicals
  • organic synthesis
  • total synthesis
  • plant pests and diseases

Published Papers (3 papers)

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Research

16 pages, 2842 KiB  
Article
Formulation and Characterization of Matrine Oil Dispersion to Improve Droplet Wetting and Deposition
by Meng Li, Zhen Wang, Huanwen Meng, Dong Wang, Xile Deng and Hongyou Zhou
Molecules 2023, 28(19), 6896; https://doi.org/10.3390/molecules28196896 - 30 Sep 2023
Cited by 2 | Viewed by 982
Abstract
The unreasonable use of chemical pesticides has caused serious damage to crops and the ecological environment. The botanical pesticide matrine has attracted attention as an environmentally friendly pesticide. Compared with traditional spraying methods, unmanned aerial vehicle (UAV) spraying has the advantages of safety, [...] Read more.
The unreasonable use of chemical pesticides has caused serious damage to crops and the ecological environment. The botanical pesticide matrine has attracted attention as an environmentally friendly pesticide. Compared with traditional spraying methods, unmanned aerial vehicle (UAV) spraying has the advantages of safety, rapidity, uniform droplets, low dosages, and no terrain or crop restrictions. In this study, matrine OD was prepared according to the application requirements of flight prevention preparations using three different emulsifiers. The stability, wettability, particle size and distribution, and spraying performance of matrine OD were studied. The results indicated that when the amount of emulsifier was 8%, the three types of matrine OD had good stability. The stability, wettability, particle size and distribution, and spray performance of the suspension prepared using emulsifier VO/03 were better than the other two emulsifiers. Therefore, matrine OD prepared using 8% VO/03 could be used for ultra-low-volume sprays and aerial applications. In this study, we provide a theoretical basis and technical guidance to develop pesticide formulations for aerial applications. Full article
(This article belongs to the Special Issue Recent Advances of Natural Products in Pesticides)
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14 pages, 3830 KiB  
Article
Rhein–Amino Acid Ester Conjugates as Potential Antifungal Agents: Synthesis and Biological Evaluation
by Shunshun Chen, Meimei Wang, Linhua Yu, Jinchao Shi, Yong Zhang, Yao Tian, Li Li, Xiang Zhu and Junkai Li
Molecules 2023, 28(5), 2074; https://doi.org/10.3390/molecules28052074 - 22 Feb 2023
Cited by 1 | Viewed by 1081
Abstract
In the search for crop protectants, amino acid ester conjugates have been widely investigated as potential antifungal agents. In this study, a series of rhein–amino acid ester conjugates were designed and synthesized in good yields, and their structures were confirmed by 1H-NMR, [...] Read more.
In the search for crop protectants, amino acid ester conjugates have been widely investigated as potential antifungal agents. In this study, a series of rhein–amino acid ester conjugates were designed and synthesized in good yields, and their structures were confirmed by 1H-NMR, 13C-NMR and HRMS. The bioassay results revealed that most of the conjugates exhibited potent inhibitory activity against R. solani and S. sclerotiorum. In particular, conjugate 3c had the highest antifungal activity against R. solani with an EC50 value of 0.125 mM. For S. sclerotiorum, conjugate 3m showed the highest antifungal activity with an EC50 value of 0.114 mM. Satisfactorily, conjugate 3c exhibited better protective effects than that of the positive control, physcion, against powdery mildew in wheat. This research supports the role of rhein–amino acid ester conjugates as potential antifungal agents for plant fungal diseases. Full article
(This article belongs to the Special Issue Recent Advances of Natural Products in Pesticides)
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11 pages, 2334 KiB  
Article
Multiresidue Pesticide Analysis in Tea Using GC–MS/MS to Determine 12 Pesticide Residues (GB 2763-2021)
by Kunming Zheng, Rongmei Lin, Xuezhi Liu, Xiaoping Wu, Rongfeng Chen and Mengquan Yang
Molecules 2022, 27(23), 8419; https://doi.org/10.3390/molecules27238419 - 01 Dec 2022
Cited by 2 | Viewed by 1998
Abstract
Pesticides are widely used on tea plants, and pesticide residues are of significant concern to consumers. The National Food Safety Standard Maximum Residue Limits for Pesticides in Food (GB 2763-2021) was recently amended. However, detection methods for pesticides newly added to the list [...] Read more.
Pesticides are widely used on tea plants, and pesticide residues are of significant concern to consumers. The National Food Safety Standard Maximum Residue Limits for Pesticides in Food (GB 2763-2021) was recently amended. However, detection methods for pesticides newly added to the list of residues in beverages have not yet been established. For that reason, this study developed a solid-phase extraction (SPE) and gas chromatography–tandem mass spectrometry (GC–MS/MS) method for determining the residues of 12 pesticides, including four newly added, in black and green tea. Sample preparation processes (sample extraction, SPE clean-up, elution solvent, and elution volume) were optimized to monitor these residues reliably. Multiple reaction monitoring (MRM) was used for GC–MS/MS electron impact (EI) mode determination. Finally, satisfactory recoveries (70.7–113.0% for green tea and 72.0–99.1% for black tea) were achieved at three concentrations (10 μg/kg, 20 μg/kg, and 100 μg/kg). The LOQs were 0.04–8.69 μg/kg, and the LODs were 0.01–3.14 μg/kg. This study provides a reliable and sensitive workflow for determining 12 pesticide residues in tea, filling a gap in the newly revised National Standards. Full article
(This article belongs to the Special Issue Recent Advances of Natural Products in Pesticides)
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