Plant Health Progress最新文献

Summarized distribution of the reniform nematode, Rotylenchulus reniformis, in field crops in the United States 美国田间作物中肾形线虫（Rotylenchulus reniformis）的分布概况

IF 1.7

Plant Health Progress Pub Date : 2024-07-22 DOI: 10.1094/php-06-24-0059-br

T. R. Faske, Tristan T. Watson, Johan Desaeger, Maira Duffeck, Jon D. Eisenback, Chase Floyd, Z. Grabau, Abolfazl Hajihassani, Heather Marie Kelly, R. Kemerait, Kathy Lawrence, John D. Mueller, Maxwell Smith, Terry Wheeler, Weimin Ye

引用次数: 0

Impact of Vineyard Fallow Practices on Reducing Meloidogyne hapla Population Densities 葡萄园休耕措施对降低黑僵菌种群密度的影响

IF 1.7

Plant Health Progress Pub Date : 2024-07-15 DOI: 10.1094/php-03-24-0026-rs

Bernadette K. Gagnier, I. Zasada, Michelle M. Moyer

{"title":"Impact of Vineyard Fallow Practices on Reducing Meloidogyne hapla Population Densities","authors":"Bernadette K. Gagnier, I. Zasada, Michelle M. Moyer","doi":"10.1094/php-03-24-0026-rs","DOIUrl":"https://doi.org/10.1094/php-03-24-0026-rs","url":null,"abstract":"The northern root-knot nematode (Meloidogyne hapla) is a common plant-parasitic nematode in northern grape production regions. This nematode induces small galls on roots, which restricts water and nutrient uptake, resulting in poor vine establishment or exacerbated decline in stressed vines. A study was conducted to explore the impacts of site management practices on M. hapla population densities following removal of wine grape (Vitis vinifera) vineyards in Washington State. Soil was collected from 38 fields, M. hapla second-stage juvenile densities in soil were determined, and to assist in identifying M. hapla in potentially low-population density samples, an eight week-long tomato (Solanum lycopersicum) bioassay was conducted. Vineyard managers also provided information on site management techniques. Of the 20 total management techniques and combinations explored (e.g., fallow duration, cover crops, mowing, irrigation, herbicide applications), only one component resulted in lower M. hapla population densities: duration of vine-free period. A duration of at least one-year post vineyard removal showed a decline in M. hapla population densities in the sampled former vineyard sites. These results suggest that a fallow period could be useful as a non-chemical management tool for M. hapla in vineyard replant soils. However, consideration of additional site management factors such as weed management, soil series and amendments, interim crop planting, and irrigation or accumulated rainfall that may support M. hapla development is necessary.","PeriodicalId":20251,"journal":{"name":"Plant Health Progress","volume":null,"pages":null},"PeriodicalIF":1.7,"publicationDate":"2024-07-15","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"141646501","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

引用次数: 0

Testing the efficacy of a newly released fungicide, Sphaerex, for control of Fusarium Head Blight in wheat 测试新发布的杀菌剂 Sphaerex 对小麦镰刀菌头枯病的防治效果

IF 1.7

Plant Health Progress Pub Date : 2024-07-15 DOI: 10.1094/php-10-23-0091-rs

Bhavit Chhabra, Janelle Livesay, Saijagruti Thrasu, Victoria Cheng, Joseph Crank, L. Thorne, Alyssa Koehler, Yanhong Dong, Nidhi Rawat

{"title":"Testing the efficacy of a newly released fungicide, Sphaerex, for control of Fusarium Head Blight in wheat","authors":"Bhavit Chhabra, Janelle Livesay, Saijagruti Thrasu, Victoria Cheng, Joseph Crank, L. Thorne, Alyssa Koehler, Yanhong Dong, Nidhi Rawat","doi":"10.1094/php-10-23-0091-rs","DOIUrl":"https://doi.org/10.1094/php-10-23-0091-rs","url":null,"abstract":"Fusarium head blight (FHB) is a destructive disease of wheat and other small-grain cereals. FHB causes reduction in crop yield due to pre-mature bleaching of spikes. Additionally, it deteriorates the crop quality due to the production of mycotoxins. An integrated management strategy is needed to effectively manage this disease. One of the most important strategies in the FHB management toolbox is chemical control. Fungicides start losing their efficacy over time due to the development of fungicide resistance in the pathogens. This necessitates the development and testing of new fungicides with multiple active ingredients or modes of action. In this 3-year study, we evaluated the effectiveness of a new fungicide with multiple active ingredients, Sphaerex (a proprietary mix of metconazole and prothioconazole) in an FHB-susceptible soft red winter wheat cultivar, Shirley in the eastern United States. Sphaerex provided significantly better control over untreated plots for FHB Incidence, FHB Severity, and DON content across all three years. The level of control of FHB and DON by Sphaerex was found to be similar to that provided by other standard FHB fungicides. The yield of the fungicide-treated plots was statistically similar to that of the untreated plots.","PeriodicalId":20251,"journal":{"name":"Plant Health Progress","volume":null,"pages":null},"PeriodicalIF":1.7,"publicationDate":"2024-07-15","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"141647818","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

引用次数: 0

Field evaluations of plant defense activators and sulfur as alternatives to copper bactericides for the management of cabbage black rot in Florida 在佛罗里达州对植物防御激活剂和硫磺作为铜杀菌剂的替代品进行田间评估，以防治卷心菜黑腐病

IF 1.7

Plant Health Progress Pub Date : 2024-07-12 DOI: 10.1094/php-03-24-0023-rs

Roger Renzo Ramirez Antazu, Nick Dufault, Mathews Paret, Gary Vallad

{"title":"Field evaluations of plant defense activators and sulfur as alternatives to copper bactericides for the management of cabbage black rot in Florida","authors":"Roger Renzo Ramirez Antazu, Nick Dufault, Mathews Paret, Gary Vallad","doi":"10.1094/php-03-24-0023-rs","DOIUrl":"https://doi.org/10.1094/php-03-24-0023-rs","url":null,"abstract":"The bacterium Xanthomonas campestris pv. campestris causes black rot, one of the most important diseases affecting brassica production worldwide. Typically, the foliar application of copper-based bactericides is used to manage the disease. However, reports of copper tolerance among xanthomonads, expanded production of diverse brassica crops, and inherent climate challenges have motivated the brassica industry in Florida to evaluate alternatives to copper for improved black rot management. Across nine cabbage trials conducted in 2021 and 2022 in Florida, twelve alternatives were evaluated individually or as tank mixtures within a program. Each trial included a copper hydroxide standard (Kocide 3000) and a nontreated control. Based on the area under disease progress curve (AUDPC), solo applications of the plant defense activators Actigard (acibenzolar-S-methyl), Howler (Pseudomonas chlororaphis), Regalia (Reynoutria sachalinensis extract), ReyZox (Reynoutria sachalinensis extract + azoxystrobin), Theia (Bacillus subtilis), and Vacciplant (laminarin) reduced disease severity compared to the nontreated control and performed equivalent to or better than the Kocide 3000 standard across trials. Howler, Regalia, and Kocide 3000 increased cabbage yields compared to the non-treated control in at least one trial, while Actigard failed to improve yield in any trial. Applications of Microthiol (sulfur), either alone or as a tank mixture, failed to reduce disease severity or improve yield. Regardless of the program, maximum disease control at the final rating was limited to 8% compared to the nontreated control, indicating a need to improve integrated approaches for black rot management.","PeriodicalId":20251,"journal":{"name":"Plant Health Progress","volume":null,"pages":null},"PeriodicalIF":1.7,"publicationDate":"2024-07-12","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"141653347","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

引用次数: 0

Novel sources of resistance to bacterial leaf blight in the USDA Brassica rapa collection 美国农业部芸苔属植物细菌性叶枯病抗性的新来源

IF 1.7

Plant Health Progress Pub Date : 2024-07-10 DOI: 10.1094/php-03-24-0028-rs

Khushwinder Kaur, W. Wechter, M. Farnham, Shane Robinson, Sandra E Branham

引用次数: 0

Profitability of foliar fungicides in double crop soybean under low-disease environments 低病害环境下双季大豆叶面杀菌剂的盈利能力

IF 1.7

Plant Health Progress Pub Date : 2024-07-07 DOI: 10.1094/php-01-24-0001-rs

J. Barro, E. D. Del Ponte, Heather M Kelly, Kaitlyn M. Bissonnette, Darcy. E. P. Telenko, K. Ames, Carl A. Bradley

{"title":"Profitability of foliar fungicides in double crop soybean under low-disease environments","authors":"J. Barro, E. D. Del Ponte, Heather M Kelly, Kaitlyn M. Bissonnette, Darcy. E. P. Telenko, K. Ames, Carl A. Bradley","doi":"10.1094/php-01-24-0001-rs","DOIUrl":"https://doi.org/10.1094/php-01-24-0001-rs","url":null,"abstract":"Double-crop soybean production involves planting soybean (Glycine max) directly following winter wheat (Triticum aestivum) harvest. Frogeye leaf spot (FLS), caused by Cercospora sojina, is an important late-season foliar disease affecting soybean fields in the United States. In some instances, foliar fungicides have been used in double-crop soybean production with little to no FLS present, raising questions on the profitability of these applications. This study analyzed yield data from 25 fungicide trials across five states (Illinois, Indiana, Kentucky, Missouri, and Tennessee) conducted under low FLS pressure, from 2008 to 2021, on double-crop soybean. Fungicide classes evaluated in the trials included quinone outside inhibitors (QoI), demethylation inhibitors (DMI), and methyl benzimidazole carbamates (MBC) applied alone, and mixtures of chemistry classes that included DMI+succinate dehydrogenase inhibitor (SDHI), MBC+DMI, QoI+DMI, and QoI+DMI+SDHI. A network meta-analytic model estimated yield differences between fungicide-treated and nontreated plots, which ranged from -28 to 72 kg/ha among the fungicide treatments. Negative yield response values were estimated for the single fungicide classes MBC (-15.7 kg/ha) and QoI (-28.4 kg/ha). Yield difference as high as 72.8 kg/ha was estimated only for DMI+SDHI. Economic analyses indicated that, due to the lower yield responses, probabilities of breaking even were lower than 50% for all fungicide treatments, regardless of the fungicide cost or soybean sale price. Therefore, the low yield responses associated with foliar fungicides in low-disease environments linked to the higher risk of not offsetting the costs, suggest that growers should consider disease risk prior to making the fungicide application.","PeriodicalId":20251,"journal":{"name":"Plant Health Progress","volume":null,"pages":null},"PeriodicalIF":1.7,"publicationDate":"2024-07-07","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"141670896","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

引用次数: 0

Late-season decline, a bacterial disease of corn caused by Pantoea ananatis, identified in sorghum 在高粱中发现了由 Pantoea ananatis 引起的玉米细菌性病害--晚疫病

IF 1.7

Plant Health Progress Pub Date : 2024-07-07 DOI: 10.1094/php-04-24-0038-sc

Ken Obasa, Dennis Coker, José C Santiago-González

引用次数: 0

Greenhouse Screening of Cotton Varieties Against Fusarium Wilt Complex 温室筛选抗镰刀菌枯萎病的棉花品种

IF 2.3

Plant Health Progress Pub Date : 2024-06-07 DOI: 10.1094/php-03-24-0020-rs

Jessica Dotray, Jennifer Chagoya, T. Wheeler, Cecilia Monclova-Santana

{"title":"Greenhouse Screening of Cotton Varieties Against Fusarium Wilt Complex","authors":"Jessica Dotray, Jennifer Chagoya, T. Wheeler, Cecilia Monclova-Santana","doi":"10.1094/php-03-24-0020-rs","DOIUrl":"https://doi.org/10.1094/php-03-24-0020-rs","url":null,"abstract":"Fusarium oxysporum f. sp. vasinfectum race 1 and 2 (FOV) and Meloidogyne incognita (southern root-knot nematode, RKN) complex can cause severe losses in cotton and management recommendations include using varieties that are resistant to RKN. The objective of this project was to test the response of different varieties to the Fusarium wilt complex with and without RKN resistance. Four greenhouse trials were conducted, where cultivars infested with RKN and FOV were evaluated on 1) leaf wilt symptoms rated every 3-4 days to calculate area under disease progress curve and 2) visual ratings of root and stem necrosis at the end of each trial. RKN resistant cultivars ‘PHY 480 W3FE’ and ‘DP 1747NR B2XF’ statistically had similar AUDPC, root necrosis, and stem necrosis as RKN susceptible cultivars ‘DP 1522 B2XF’ and ‘DP 1646 B2XF’ in all trials. This demonstrated that RKN resistance does not correlate to FOV resistance and RKN resistance alone is not sufficient to manage Fusarium wilt. Cultivar ‘ST 4946GLB2’, which carries both RKN and FOV resistance, statistically had the lowest AUDPC, root necrosis, and stem necrosis in all greenhouse trials.","PeriodicalId":20251,"journal":{"name":"Plant Health Progress","volume":null,"pages":null},"PeriodicalIF":2.3,"publicationDate":"2024-06-07","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"141374584","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

引用次数: 0

Susceptibility of Table Beet Cultivars to Foliar Diseases in New York 纽约甜菜栽培品种对叶面病害的敏感性

IF 2.3

Plant Health Progress Pub Date : 2024-05-21 DOI: 10.1094/php-01-24-0005-rs

Pratibha Sharma, Sean Murphy, Julie Kikkert, Sarah Jane Pethybridge

{"title":"Susceptibility of Table Beet Cultivars to Foliar Diseases in New York","authors":"Pratibha Sharma, Sean Murphy, Julie Kikkert, Sarah Jane Pethybridge","doi":"10.1094/php-01-24-0005-rs","DOIUrl":"https://doi.org/10.1094/php-01-24-0005-rs","url":null,"abstract":"A collection of foliar diseases affects table beet production in New York. The predominant diseases are bacterial leaf spot (BLS), caused by the bacterium, Pseudomonas syringae pv. aptata; Cercospora leaf spot (CLS) caused by the fungus, Cercospora beticola; and Phoma leaf spot (PLS) caused by the fungus, Phoma betae (syn. Neocamarosporium betae). Little is known of the potential to use host resistance in an integrated program for table beet disease management. Field trials evaluated the susceptibility of selected table beet cultivars (Bohan, Bresko, Manolo, Pablo, Red Cloud, Ruby Queen, Subeto, and Bazzu/Irazu) to BLS, CLS, and PLS. Bohan was one of the least susceptible to BLS but was moderately and highly susceptible to CLS and PLS, respectively. Bresko was moderately susceptible to BLS and CLS, and among the least susceptible to PLS. Manolo was one of the least susceptible to BLS and PLS but highly susceptible to CLS. Pablo and Red Cloud were moderately or highly susceptible to all diseases. Subeto was moderately susceptible to BLS and CLS but the least susceptible to PLS. Ruby Queen, the processing standard, was the least susceptible to BLS and PLS, and moderately susceptible to CLS. Bazzu and Irazu (2021 and 2022, respectively) were among the least susceptible to all diseases and the only cultivars tested with reduced CLS susceptibility. These findings emphasize the need to evaluate table beet cultivar susceptibility to the spectrum of foliar diseases. This information may underpin cultivar selection based on the varying importance of diseases in specific production situations.","PeriodicalId":20251,"journal":{"name":"Plant Health Progress","volume":null,"pages":null},"PeriodicalIF":2.3,"publicationDate":"2024-05-21","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"141116039","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

引用次数: 0

Managing Esca in susceptible ‘Sauvignon blanc’ wine grapes through trunk renewal 通过树干更新管理易感 "长相思 "酿酒葡萄中的 Esca

IF 2.3

Plant Health Progress Pub Date : 2024-05-20 DOI: 10.1094/php-01-24-0011-sc

Kendra Baumgartner, Israel Luna, Arran C Rumbaugh

{"title":"Managing Esca in susceptible ‘Sauvignon blanc’ wine grapes through trunk renewal","authors":"Kendra Baumgartner, Israel Luna, Arran C Rumbaugh","doi":"10.1094/php-01-24-0011-sc","DOIUrl":"https://doi.org/10.1094/php-01-24-0011-sc","url":null,"abstract":"Trunk renewal was evaluated as a treatment for highly susceptible ‘Sauvignon blanc’ wine grapes with moderate leaf and wood symptoms of the trunk disease Esca, in a 17-year-old vineyard, seven years after symptoms first appeared. The trunk was cut above the graft union, removing all woody parts of the vine above it, including infected wood. Then a new trunk was retrained from a shoot off presumably healthy wood, at the base of the trunk. Prior to trunk renewal, we detected Esca pathogens from 26% of 97 symptomatic vines. Five years after trunk renewal, 72 retrained vines were still asymptomatic, 24 were replanted (i.e., did not produce a shoot after trunk renewal), and one had leaf and fruit symptoms. Chemical composition of asymptomatic fruit from asymptomatic-retrained vines (RV-AF) was compared to that of vines that were not retrained, the latter of which included asymptomatic fruit from asymptomatic vines (AV-AF), and both asymptomatic fruit (SV-AF) and symptomatic fruit (SV-SF) from the same symptomatic vines. Given the high proportion of asymptomatic retrained vines after five growing seasons, trunk renewal was an effective cultural practice. Although there were no differences in chemistry parameters used to make harvest decisions (total soluble solids, pH, titratable acidity), SV-SF was unique in having the highest concentrations of the flavonoids catechin and epicatechin, and the lowest concentrations of the volatile-aroma compounds hexanal and 2-hexanal. These findings in all three blocks, among fruit with visible spots, may reflect a host-defense response and/or the effect of Esca on fruit ripening.","PeriodicalId":20251,"journal":{"name":"Plant Health Progress","volume":null,"pages":null},"PeriodicalIF":2.3,"publicationDate":"2024-05-20","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"141120557","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

引用次数: 0