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Identification and characterization of Colletotrichum boninense causing anthracnose on Epimedium sagittatum in China 矢状淫羊藿炭疽病病原菌的鉴定与鉴定
IF 2.5 2区 农林科学
Crop Protection Pub Date : 2025-10-11 DOI: 10.1016/j.cropro.2025.107444
Guiying Liu , Lu Wang , Kaihua Peng , Xincun Wang , Huixin Li , Mingrui Liu , Xiuhai Gan , Xiaomao Wu , Yong Wang , Zaifu Yang
{"title":"Identification and characterization of Colletotrichum boninense causing anthracnose on Epimedium sagittatum in China","authors":"Guiying Liu ,&nbsp;Lu Wang ,&nbsp;Kaihua Peng ,&nbsp;Xincun Wang ,&nbsp;Huixin Li ,&nbsp;Mingrui Liu ,&nbsp;Xiuhai Gan ,&nbsp;Xiaomao Wu ,&nbsp;Yong Wang ,&nbsp;Zaifu Yang","doi":"10.1016/j.cropro.2025.107444","DOIUrl":"10.1016/j.cropro.2025.107444","url":null,"abstract":"<div><div><em>Epimedium sagittatum</em>, an important traditional Chinese medicinal herb valued for its tonic and anti-rheumatic properties, was found to be affected by leaf anthracnose in Jiangkou County, Tongren City, Guizhou Province, in 2024 and 2025. Symptoms were observed on both nursery seedlings and field-grown plants. Fungal isolates resembling <em>Colletotrichum</em> species were consistently obtained from symptomatic leaf tissues. Morphological examination combined with multilocus sequence analysis of ITS, <em>act</em>, <em>tub2</em>, <em>cal</em>, and <em>gapdh</em> regions identified the pathogen as <em>Colletotrichum boninense</em>. Phylogenetic inference and morphological traits supported this classification. Pathogenicity was verified through inoculation of healthy <em>E. sagittatum</em> leaves with isolate GE001, which reproduced symptoms consistent with field observations. The fungus was successfully re-isolated from the diseased leaves and confirmed using morphological and molecular approaches, thereby fulfilling Koch's postulates. To our knowledge, this study represents the first report of <em>C. boninense</em> causing anthracnose on <em>E. sagittatum</em>. These findings reveal a novel fungal threat to this economically significant medicinal plant and emphasize the necessity for further research into disease management strategies.</div></div>","PeriodicalId":10785,"journal":{"name":"Crop Protection","volume":"199 ","pages":"Article 107444"},"PeriodicalIF":2.5,"publicationDate":"2025-10-11","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"145315029","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":2,"RegionCategory":"农林科学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
引用次数: 0
Erioglossum rubiginosum, a new alternative host of rubber tree powdery mildew Erysiphe quercicola 橡胶树白粉病的一种新的替代寄主
IF 2.5 2区 农林科学
Crop Protection Pub Date : 2025-10-11 DOI: 10.1016/j.cropro.2025.107443
Zheyu Zhang , Shanshan Yin , Jonathan S. West , Daquan Luo , Xueren Cao
{"title":"Erioglossum rubiginosum, a new alternative host of rubber tree powdery mildew Erysiphe quercicola","authors":"Zheyu Zhang ,&nbsp;Shanshan Yin ,&nbsp;Jonathan S. West ,&nbsp;Daquan Luo ,&nbsp;Xueren Cao","doi":"10.1016/j.cropro.2025.107443","DOIUrl":"10.1016/j.cropro.2025.107443","url":null,"abstract":"<div><div><em>Erioglossum rubiginosum</em> (synonym as <em>Lepisanthes rubiginosa</em>), is a shrub-like plant belonging to the family Sapindaceae. This species is a common undergrowth plant species in rubber tree plantations, which provide more than 90% of the total natural rubber production<em>.</em> Powdery mildew was found to occur seriously on <em>E</em>. <em>rubiginosum</em> during an investigation on powdery mildew of rubber tree caused by <em>Erysiphe quercicola.</em> In this study, leaves of <em>E</em>. <em>rubiginosum</em> with powdery mildew symptoms were collected and the pathogen was identified using morphological and molecular analyses using the internal transcribed spacer (ITS) and 28 S rDNA regions. The results indicated that <em>E</em>. <em>quercicola</em> was the causal agent of <em>E</em>. <em>rubiginosum</em> powdery mildew. Based on cross-pathogenicity analysis, <em>E</em>. <em>quercicola</em> from <em>E</em>. <em>rubiginosum</em> and rubber tree could cause typical symptoms on each other, which confirmed that <em>E</em>. <em>rubiginosum</em> is an alternative host of rubber tree powdery mildew. To our knowledge, this is the first report of <em>E</em>. <em>quercicola</em> causing powdery mildew on <em>E</em>. <em>rubiginosum</em>. Whether <em>E</em>. <em>rubiginosum</em> can be one of the primary sources of the rubber tree powdery mildew epidemics needs future studies.</div></div>","PeriodicalId":10785,"journal":{"name":"Crop Protection","volume":"199 ","pages":"Article 107443"},"PeriodicalIF":2.5,"publicationDate":"2025-10-11","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"145315030","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":2,"RegionCategory":"农林科学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
引用次数: 0
Integrated management of peanut smut using Bacillus velezensis CHEP5, resistant genotypes, and a calcium-based amendment for sustainable production 利用velezensis CHEP5、抗性基因型和钙基改良对花生黑穗病进行综合管理,促进可持续生产
IF 2.5 2区 农林科学
Crop Protection Pub Date : 2025-10-11 DOI: 10.1016/j.cropro.2025.107441
Natalia Marcellino , Marcos Darío Bongiovanni , Úrsula Ana Loser , Matías Ezequiel Rovere , Lucía Beatriz Chimento , Edmundo Guillermo Peiretti , Mercedes Alicia Ibañez , María Laura Tonelli
{"title":"Integrated management of peanut smut using Bacillus velezensis CHEP5, resistant genotypes, and a calcium-based amendment for sustainable production","authors":"Natalia Marcellino ,&nbsp;Marcos Darío Bongiovanni ,&nbsp;Úrsula Ana Loser ,&nbsp;Matías Ezequiel Rovere ,&nbsp;Lucía Beatriz Chimento ,&nbsp;Edmundo Guillermo Peiretti ,&nbsp;Mercedes Alicia Ibañez ,&nbsp;María Laura Tonelli","doi":"10.1016/j.cropro.2025.107441","DOIUrl":"10.1016/j.cropro.2025.107441","url":null,"abstract":"<div><div>Argentina is globally recognized as a leading producer of high-quality peanuts for the export market. However, peanut smut (<em>Thecaphora frezzii</em>) poses a significant threat to peanut production, causing substantial losses in both yield and quality. This study aimed to evaluate the effect of the microbial biocontrol agent <em>Bacillus velezensis</em> CHEP5 (CHEP5), a calcium-based soil amendment (CA; 80 % CaCO<sub>3</sub> + 20 % CaSO<sub>4</sub>), and resistant genotypes (Utré and LAx8, with Granoleico as a susceptible control) in reducing disease incidence and severity, and in improving yield, yield components, and nodulation. Three field trials were conducted in Córdoba, Argentina, from 2021 to 2024. Genotypes Utré and LAx8 consistently reduced smut incidence and severity, representing the most effective control strategy. In two of the three seasons, CA and CHEP5 also reduced disease levels, with average reductions in incidence ranging from 16.5 to 60.9 % and in severity from 20.5 to 60.1 %, depending on the genotype. In the wettest season, CA increased grain yield by an average of 10.8 %, while CHEP5 enhanced nodule formation by an average of 15.7 %. These findings support an integrated disease management approach, prioritizing genetic resistance and complemented by soil calcium amendments and microbial biocontrol agents, as a sustainable strategy for controlling peanut smut in Argentina.</div></div>","PeriodicalId":10785,"journal":{"name":"Crop Protection","volume":"199 ","pages":"Article 107441"},"PeriodicalIF":2.5,"publicationDate":"2025-10-11","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"145315032","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":2,"RegionCategory":"农林科学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
引用次数: 0
Circular economy approach to coffee processing residue valorization: Bioactive by-product extracts for managing pre- and post-harvest fungal pathogens 咖啡加工残留物增值的循环经济方法:用于管理收获前和收获后真菌病原体的生物活性副产品提取物
IF 2.5 2区 农林科学
Crop Protection Pub Date : 2025-10-11 DOI: 10.1016/j.cropro.2025.107442
Eva Sánchez-Hernández , Jorge Clérigo-de Santiago , Vicente González-García , Marta Herrera-Sánchez , José Luis Marcos-Robles , Jesús Martín-Gil , Pablo Martín-Ramos
{"title":"Circular economy approach to coffee processing residue valorization: Bioactive by-product extracts for managing pre- and post-harvest fungal pathogens","authors":"Eva Sánchez-Hernández ,&nbsp;Jorge Clérigo-de Santiago ,&nbsp;Vicente González-García ,&nbsp;Marta Herrera-Sánchez ,&nbsp;José Luis Marcos-Robles ,&nbsp;Jesús Martín-Gil ,&nbsp;Pablo Martín-Ramos","doi":"10.1016/j.cropro.2025.107442","DOIUrl":"10.1016/j.cropro.2025.107442","url":null,"abstract":"<div><div>The coffee industry generates a large amount of waste that is usually discarded, creating an environmental and economic problem. However, these by-products can be a valuable source of bioactive compounds with antimicrobial properties and present an opportunity for use in crop protection, either pre- or post-harvest. Following the principles of the circular economy, this study proposes the extraction and characterization of bioactive products from coffee by-products, as well as the evaluation of their antifungal activity against pathogens that affect coffee plants and/or stored coffee beans, such as <em>Fusarium xylarioides</em>, <em>Aspergillus flavus</em>, <em>A. niger</em>, and <em>Penicillium verrucosum</em>. <em>In vitro</em> activity assays demonstrate high antimicrobial activity of the husk, parchment, defective green beans with silverskin, and silverskin extracts, with minimum inhibitory concentrations ranging from 15.6 to 375 μg mL<sup>−1</sup> against <em>F. xylarioides</em>, 31.2–1000 μg mL<sup>−1</sup> against <em>A. flavus</em>, 62.5–1000 μg mL<sup>−1</sup> against <em>A. niger</em>, and 62.5–1500 μg mL<sup>−1</sup> against <em>P. verrucosum</em>, depending on the by-product extract used. The most effective extract, derived from silverskin, was evaluated for pre-harvest protection of coffee plants and demonstrated complete inhibition of <em>F. xylarioides</em>-induced tracheomycosis at 15.6 μg mL<sup>−1</sup>. In turn, a concentration of 62.5 μg mL<sup>−1</sup> of the silverskin extract was sufficient to prevent fungal growth of <em>A. flavus</em>, <em>A. niger</em>, and <em>P. verrucosum</em> on coffee beans. This concentration also prevented mycotoxin production by <em>A. flavus</em>, while a higher concentration of 125 μg mL<sup>−1</sup> was required to prevent aflatoxin production by <em>A. niger</em>. The reported findings support coffee by-products extracts as promising alternatives to synthetic fungicides, with the potential to improve the sustainability of the coffee industry.</div></div>","PeriodicalId":10785,"journal":{"name":"Crop Protection","volume":"199 ","pages":"Article 107442"},"PeriodicalIF":2.5,"publicationDate":"2025-10-11","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"145315031","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":2,"RegionCategory":"农林科学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
引用次数: 0
Prevalence of mealybug wilt-associated viruses in pineapple 'Queen Victoria' cultivars in Reunion Island and the potential of virus-free vitroplants for disease management 留尼汪岛“维多利亚女王”菠萝品种粉蚧萎蔫相关病毒的流行及无病毒体外植物用于病害管理的潜力
IF 2.5 2区 农林科学
Crop Protection Pub Date : 2025-10-10 DOI: 10.1016/j.cropro.2025.107440
Delphine Massé , Frédéric Chiroleu , Nathalie Cassam , Bruno Hostachy , Jean-Michel Lett , Pierre Lefeuvre , Pierre-Yves Teycheney
{"title":"Prevalence of mealybug wilt-associated viruses in pineapple 'Queen Victoria' cultivars in Reunion Island and the potential of virus-free vitroplants for disease management","authors":"Delphine Massé ,&nbsp;Frédéric Chiroleu ,&nbsp;Nathalie Cassam ,&nbsp;Bruno Hostachy ,&nbsp;Jean-Michel Lett ,&nbsp;Pierre Lefeuvre ,&nbsp;Pierre-Yves Teycheney","doi":"10.1016/j.cropro.2025.107440","DOIUrl":"10.1016/j.cropro.2025.107440","url":null,"abstract":"<div><div>Mealybug wilt disease of pineapple (MWP) poses a significant threat to global pineapple production, yet its etiology remains poorly understood. The disease is believed to involve mealybugs, multiple pineapple mealybug wilt-associated viruses (PMWaVs, genus <em>Ampelovirus</em>), and possibly other viruses from the <em>Badnavirus</em>, <em>Secovirus</em>, and <em>Vitivirus</em> genera. This study examines the distribution and prevalence of three ampeloviruses (PMWaV1, PMWaV2, PMWaV3) and two badnaviruses (PBERV, PBCOV), previously associated to MWP symptoms, across 15 pineapple plots of the ‘Queen Victoria’ cultivar in Reunion Island. A total of 450 symptomatic and asymptomatic leaf samples were analyzed using PCR and RT-PCR-based diagnostics. Globally, 93 % of samples were infected with at least one virus, and 76 % were co-infected with two to four viruses. PMWaV1 (78 %) and PBCOV (87 %) were the most prevalent, while PBERV was not detected. Virus presence was associated with leaf dieback, wilting, and curling. Leaf reddening and yellowing, commonly associated with MWP, were not associated with viral infection, suggesting that other biotic or abiotic factors may be responsible for these symptoms. Viral infections and MWP symptoms were significantly lower in plots planted with vitroplants (VPs) compared to those using suckers, highlighting the potential of VPs in reducing viral infections. These findings highlight the complexity of MWP and underscore the potential benefits of using virus-free VPs to manage the disease.</div></div>","PeriodicalId":10785,"journal":{"name":"Crop Protection","volume":"199 ","pages":"Article 107440"},"PeriodicalIF":2.5,"publicationDate":"2025-10-10","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"145315035","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":2,"RegionCategory":"农林科学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
引用次数: 0
Efficacy of herbicides and flaming against weeds and their effects in oregano (Origanum vulgare ssp. hirtum) tolerance 牛至草除草剂和火焰的除草效果及其影响。hirtum)宽容
IF 2.5 2区 农林科学
Crop Protection Pub Date : 2025-10-09 DOI: 10.1016/j.cropro.2025.107437
Elissavet Gavriil , Ilias Eleftherohorinos , Stevan Knezevic , Petros Tarantilis , Dimitra Daferera , Kyriaki Sotirakoglou , Garyfalia Economou
{"title":"Efficacy of herbicides and flaming against weeds and their effects in oregano (Origanum vulgare ssp. hirtum) tolerance","authors":"Elissavet Gavriil ,&nbsp;Ilias Eleftherohorinos ,&nbsp;Stevan Knezevic ,&nbsp;Petros Tarantilis ,&nbsp;Dimitra Daferera ,&nbsp;Kyriaki Sotirakoglou ,&nbsp;Garyfalia Economou","doi":"10.1016/j.cropro.2025.107437","DOIUrl":"10.1016/j.cropro.2025.107437","url":null,"abstract":"<div><div>Two field experiments were conducted in Greece over three growing seasons and two contrasting environments to evaluate the efficacy of preemergence (soil applied herbicides before weed emergence and oregano transplanting) and postemergence (foliage applied herbicide and flaming on both emerged weeds and oregano) against weeds and their effects on oregano tolerance. Weed presence reduced oregano's dry weight and essential oil yield by 37–42 % and 42–55 %, respectively, as compared to weed-free control treatment, whereas none of the weed management treatments provided acceptable weed control. The preemergence applied metribuzin + pendimethalin reduced dry weed weight by 51–56 % in both locations, while the respective reduction due to flaming treatments was 41–69 % in both locations and growing seasons. However, the postemergence applied glyphosate and the mixture of metribuzin + cycloxydim provided the best control by reducing weed dry weight by 61–77 % in all studied cases. Regarding oregano tolerance to weed management options, all treatments were phytotoxic and most of them reduced the number of survived plants, their dry weight, essential oil yield and carvacrol content. The flaming treatments caused the greatest reduction in these oregano growth parameters, whereas glyphosate and the mixture of metribuzin + cycloxydim produced the highest, which were in most cases similar to those of weed-free control plants. These results indicated clearly that glyphosate and mixture of metribuzin + cycloxydim could be used for weed management in oregano, but before their use, the fate (metabolism and residue levels) of these herbicides in oregano plant parts should be further studied.</div></div>","PeriodicalId":10785,"journal":{"name":"Crop Protection","volume":"199 ","pages":"Article 107437"},"PeriodicalIF":2.5,"publicationDate":"2025-10-09","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"145261746","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":2,"RegionCategory":"农林科学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
引用次数: 0
Colletotrichum horii causing fruit rot of nutmeg (Myristica fragrans Houtt.) in Malaysia 马来西亚肉豆蔻(Myristica fragrans Houtt.)果腐病的炭疽菌
IF 2.5 2区 农林科学
Crop Protection Pub Date : 2025-10-09 DOI: 10.1016/j.cropro.2025.107435
Ka Sheng Goh , Nurul Farizah Azuddin , R.B. Radin Firdaus , Nor Azliza Ismail , Mark L. Gleason , Hafizi Rosli
{"title":"Colletotrichum horii causing fruit rot of nutmeg (Myristica fragrans Houtt.) in Malaysia","authors":"Ka Sheng Goh ,&nbsp;Nurul Farizah Azuddin ,&nbsp;R.B. Radin Firdaus ,&nbsp;Nor Azliza Ismail ,&nbsp;Mark L. Gleason ,&nbsp;Hafizi Rosli","doi":"10.1016/j.cropro.2025.107435","DOIUrl":"10.1016/j.cropro.2025.107435","url":null,"abstract":"<div><div>Nutmeg (<em>Myristica fragrans</em> Houtt.) is widely cultivated in Malaysia, with Penang being the leading state. During field inspection in 2022, fruit rot disease was observed in several nutmeg orchards, and local growers reported reduced yields. Affected fruits showed black sunken lesions on the surface of nutmeg fruit. To date, this disease has not been reported in Malaysia. A total of 10 nutmeg fruit showing fruit rot disease symptoms were collected from several nutmeg orchards in Penang for fungal isolation. Morphological and molecular approaches, along with pathogenicity tests, were conducted to determine the causal fungal pathogen. Based on morphological characteristics, the fungal isolates were tentatively identified as <em>Colletotrichum</em> species, and molecular analyses using internal transcribed spacer (ITS), glyceraldehyde-3-phosphate dehydrogenase (<em>GAPDH</em>) and actin (<em>ACT</em>) gene loci confirmed the species identity as <em>C. horii</em>. Phylogenetic analyses using both maximum likelihood (ML) and Bayesian inference (BI) methods provided strong support for the species identification, with high bootstrap values (100 %) and Bayesian posterior probabilities (1.0). Pathogenicity tests on 32 healthy immature nutmeg fruits showed that only wounded fruits developed disease symptoms similar to those observed in the field, while non-wounded fruits remained asymptomatic, fulfilling Koch's postulates. This is the first report of <em>C. horii</em> causing fruit rot of nutmeg in Malaysia. These findings provide a foundation for developing targeted disease management strategies to mitigate yield losses in nutmeg cultivation.</div></div>","PeriodicalId":10785,"journal":{"name":"Crop Protection","volume":"199 ","pages":"Article 107435"},"PeriodicalIF":2.5,"publicationDate":"2025-10-09","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"145261783","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":2,"RegionCategory":"农林科学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
引用次数: 0
Field testing of the Redekop seed control unit in soybean and wheat production systems in Virginia Redekop种子控制装置在弗吉尼亚州大豆和小麦生产系统中的田间试验
IF 2.5 2区 农林科学
Crop Protection Pub Date : 2025-10-08 DOI: 10.1016/j.cropro.2025.107438
Eli C. Russell , Wykle C. Greene , Matthew P. Spoth , Kevin W. Bamber , Lauren M. Schwartz-Lazaro , Michael L. Flessner
{"title":"Field testing of the Redekop seed control unit in soybean and wheat production systems in Virginia","authors":"Eli C. Russell ,&nbsp;Wykle C. Greene ,&nbsp;Matthew P. Spoth ,&nbsp;Kevin W. Bamber ,&nbsp;Lauren M. Schwartz-Lazaro ,&nbsp;Michael L. Flessner","doi":"10.1016/j.cropro.2025.107438","DOIUrl":"10.1016/j.cropro.2025.107438","url":null,"abstract":"<div><div>Seed impact mills are machines that are mounted directly to the back of a combine and are one way to implement harvest weed seed control (HWSC). Seed impact mills kill weed seeds during harvest, preventing seeds from being added to the soil seedbank. Previous research has indicated that seed impact mills have high seed kill rates (&gt;90 %) for problematic weeds in soybean and wheat. While these mills are effective, there are many ways that seeds could bypass the seed impact mill, such as shattering and seed loss at the header during harvest, which could reduce the effectiveness of these mills. In the field, tracking weed density in the following seasons after harvest could indicate overall effectiveness of using a seed impact mill. The purpose of this experiment was to track emergence of common ragweed (<em>Ambrosia artemisiifolia</em>) and Italian ryegrass (<em>Lolium perenne</em> ssp<em>. multiflorum</em>) in soybean and wheat fields, respectively, after harvesting with a seed impact mill. Seven soybean fields and four wheat fields in commercial production were tracked for <em>A. artemisiifolia</em> and <em>L. perenne</em> ssp. <em>multiflorum</em> density, respectively. For testing, each field was divided into two sections: with and without the use of the seed impact mill. Weed emergence was recorded in the following seasons. Density reductions for <em>A. artemisiifolia</em> after one year of HWSC were 26 % and 77 % at the postemergence herbicide and harvest timings, respectively. There was also a 99 % reduction after two harvests with HWSC, but a single HWSC harvest followed by a conventional harvest resulted in a 330 % increase. The density reduction of <em>L. perenne</em> ssp. <em>multiflorum</em> after one harvest was 48 %. These data indicate that seed impact mills can be an effective tool for reducing inputs into soil seedbank and weed densities in following seasons in systems under commercial production.</div></div>","PeriodicalId":10785,"journal":{"name":"Crop Protection","volume":"199 ","pages":"Article 107438"},"PeriodicalIF":2.5,"publicationDate":"2025-10-08","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"145315033","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":2,"RegionCategory":"农林科学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
引用次数: 0
Peppermint interplanting and nitrogen fertilisation for green peach aphid management in peach orchards: Field evidence of VOC-mediated effects 薄荷种植和氮肥对桃园青桃蚜虫管理的影响:挥发性有机化合物介导效应的田间证据
IF 2.5 2区 农林科学
Crop Protection Pub Date : 2025-10-06 DOI: 10.1016/j.cropro.2025.107434
Julie Borg, Guy Costagliola, Claude Castella, Gilles Vercambre, Hélène Gautier
{"title":"Peppermint interplanting and nitrogen fertilisation for green peach aphid management in peach orchards: Field evidence of VOC-mediated effects","authors":"Julie Borg,&nbsp;Guy Costagliola,&nbsp;Claude Castella,&nbsp;Gilles Vercambre,&nbsp;Hélène Gautier","doi":"10.1016/j.cropro.2025.107434","DOIUrl":"10.1016/j.cropro.2025.107434","url":null,"abstract":"<div><div>A potential strategy for reducing pesticide applications within a cropping system is the use of agroecological practices to alter pest behaviour. Among these practices are the use of companion plant and the management of nitrogen fertilisation. Companion plants (CPs) emit volatile organic compounds (VOCs) that can influence aphid behaviour. Nitrogen fertilisation may affect aphid feeding and, consequently, aphid population growth, as it alters plant composition and development. The objective of this study was to determine whether the combination of nitrogen fertilisation and <em>Mentha × piperita</em> ground cover could modify the incidence of <em>Myzus persicae</em> in a peach orchard. We conducted a factorial experiment quantifying <em>M. persicae</em> incidence, VOC emissions, <em>Prunus persica</em> growth, and agronomic performance under contrasting nitrogen levels, with or without <em>Mentha × piperita</em> cover. This study provides field evidence of peppermint VOC production. We identified specific volatile compounds around peach trees associated with peppermint, including menthone, menthyl acetate, and eucalyptol. A high nitrogen level increased peppermint VOC emissions, reduced <em>M. persicae</em> incidence, and enhanced peach tree growth. The peppermint cover appeared to slightly improve the visual appearance of fruits at harvest. Fruits quality remained within commercial standards in terms of sugar content and overall yield, and fruit size was not significantly reduced despite potential resource competition with peppermint. Further research is needed to better understand the specific factors influencing VOC emissions and their effects on aphids at a finer temporal scale.</div></div>","PeriodicalId":10785,"journal":{"name":"Crop Protection","volume":"199 ","pages":"Article 107434"},"PeriodicalIF":2.5,"publicationDate":"2025-10-06","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"145261876","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":2,"RegionCategory":"农林科学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
引用次数: 0
First report of Phyllosticta capitalensis causing black leaf spot on Camellia oleifera in Hunan, China 湖南油茶黑叶斑病发生初报
IF 2.5 2区 农林科学
Crop Protection Pub Date : 2025-10-06 DOI: 10.1016/j.cropro.2025.107436
Zhaohui Hu , Liangxuan Qu , Xiaomao Zhou , Hong Liu , Guoying Zhou
{"title":"First report of Phyllosticta capitalensis causing black leaf spot on Camellia oleifera in Hunan, China","authors":"Zhaohui Hu ,&nbsp;Liangxuan Qu ,&nbsp;Xiaomao Zhou ,&nbsp;Hong Liu ,&nbsp;Guoying Zhou","doi":"10.1016/j.cropro.2025.107436","DOIUrl":"10.1016/j.cropro.2025.107436","url":null,"abstract":"<div><div><em>Camellia oleifera</em> is a multifunctional woody edible crop and is widely cultivated in China. Since 2024, black leaf spots were commonly observed on <em>C. oleifera</em> in Changde City and Zhuzhou City, Hunan Province, China. The pathogen was isolated from the symptomatic leaves and identified as <em>Phyllosticta capitalensis</em> based on morphological characteristics (colonies and conidia) as well as multi-locus phylogenetic analysis using the internal transcribed spacer region (ITS), translation elonation factor 1-alpha gene (<em>tef1</em>), and actin gene (<em>act</em>). Leaves inoculated with the representative isolates cause disease symptoms on <em>C. oleifera</em> leaves that are similar to those observed in the field<em>.</em> Koch's postulates were supported by pathogen re-isolation and identification from the inoculated leaves. As far as we know, this is the first report of <em>P</em>. <em>capitalensis</em> causing foliar disease on <em>C. oleifera</em> in Hunan Province, China. These findings will contribute to making scientific management strategies for this disease.</div></div>","PeriodicalId":10785,"journal":{"name":"Crop Protection","volume":"199 ","pages":"Article 107436"},"PeriodicalIF":2.5,"publicationDate":"2025-10-06","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"145261786","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":2,"RegionCategory":"农林科学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
引用次数: 0
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