Plant Health Progress (PHP) is a peer-reviewed, multidisciplinary, scientific journal of applied plant health. An official APS journal founded in 2000, and an online-only resource offered by the Plant Management Network, its goal is to publish new scientific information to enhance the health, management, and production of agricultural and horticultural crops. EDITOR-IN-CHIEF: Chandrasekar S. Kousik, USDA Agricultural Research Service, 2700 Savannah Hwy., Charleston, SC 29414 U.S.A. Phone: +1.843.402.5316 n E-mail: [email protected] Volume 22, Number 4, 2021 REVIEW 421 An Examination of Apple Powdery Mildew and the Biology of Podosphaera leucotricha from Past to Present David A. Strickland, Kathie T. Hodge, and Kerik D. Cox SYMPOSIUM 433 19 th Annual Melhus Symposium: Data Driven Plant Health Robin A. Choudhury and Sydney E. Everhart 436 Detection of Soilborne Disease Utilizing Sensor Technologies: Lessons Learned from Studies on Stem Rot of Peanut Xing Wei, Marcela Aguilera, Rachael Walcheck, Dorothea Tholl, Song Li, David B. Langston Jr., and Hillary L. Mehl 445 Examining Spatial Distribution and Spread of Fire Blight in Apple Orchards: Two Case Studies Anna Wallis and Kerik D. Cox 450 Management of Hop Powdery Mildew in the Context of Recent Advances in Pathogen Ecology and Population Genetics William A. Weldon, David H. Gent, and David M. Gadoury 459 Multifaceted Insights on Fusarium Head Blight in Small Grains in Pennsylvania Ma ıra R. Duffeck, Emerson M. Del Ponte, and Paul D. Esker 465 Prevention and Detection of Fungicide Resistance Development in Rhizoctonia zeae from Soybean and Corn in Nebraska Nikita Gambhir, Srikanth Kodati, Matthew Huff, Fl avio Silva, Olutoyosi Ajayi-Oyetunde, Margaret Staton, Carl Bradley, Anthony O. Adesemoye, and Sydney E. Everhart RESEARCH 470 Greenhouse Data Suggest That Growth Stage Impacts Phomopsis Stem Canker Severity Associated with Diaporthe gulyae on Sunflower (Helianthus annuus) Renan Guidini, Nathan Braun, Mammen Korah, Laura F. Marek, and Febina M. Mathew 474 Evaluation of Geranium Cultivars and Biorational Products to Control Botrytis Blight in the Greenhouse Sunil Shrestha and Mary K. Hausbeck 483 Soybean Yield Loss Estimates Due to Diseases in the United States and Ontario, Canada, from 2015 to 2019 Carl A. Bradley, Tom W. Allen, Adam J. Sisson, Gary C. Bergstrom, Kaitlyn M. Bissonnette, Jason Bond, Emmanuel Byamukama, Martin I. Chilvers, Alyssa A. Collins, John P. Damicone, Anne E. Dorrance, Nicholas S. Dufault, Paul D. Esker, Travis R. Faske, Nicole M. Fiorellino, Loren J. Giesler, Glen L. Hartman, Clayton A. Hollier, Tom Isakeit, Tamra A. Jackson-Ziems, Douglas J. Jardine, Heather M. Kelly, Robert C. Kemerait, Nathan M. Kleczewski, Alyssa M. Koehler, Robert J. Kratochvil, James E. Kurle, Dean K. Malvick, Samuel G. Markell, Febina M. Mathew, Hillary L. Mehl, Kelsey M. Mehl, Daren S. Mueller, John D. Mueller, Berlin D. Nelson, Charles Overstreet, G. Boyd Padgett, Paul P. Price, Edward J. Sikora, Ian Small, Damon L. Smith, Terry N. Spurlock, Connie A. Tande, Darcy E. P. Telenko, Albert U. Tenuta, Lindsey D. Thiessen, Fred Warner, William J. Wiebold, and Kiersten A. Wise 496 Maize Seed Contamination and Seed Transmission of Maize Chlorotic Mottle Virus in Kenya Esther N. Kimani, Samuel. M. Kiarie, Cyrus Micheni, Laureen G. Muriki, Douglas. W. Miano, Isaac Macharia, Gary P. Munkvold, William M. Muiru, B. M. Prasanna, and Anne Wangai 503 Impact of Foliar Fungicides on Disease and Silage Quality of Brown Midrib Corn Hybrids in Wisconsin Hannah Reed, Brian Mueller, Carol L. Groves, and Damon L. Smith 509 Species and Trichothecene Genotype of Pathogens Causing Fusarium Head Blight of Wheat in Nebraska, U.S.A. Esteban Valverde-Bogantes, Andreia Bianchini, Stephen N. Wegulo, and Heather E. Hallen-Adams Plant Health Progress (ISSN 1535-1025) is published by The American Phytopathological Society. 3352 Sherman Court, Suite 202, St. Paul, MN 55121 +1.651.454.7250 • https:apsjournals.apsnet.org Article Publication Charges are mandatory to cover publication costs. Fees are set by the governing council of The American Phytopathological Society. Submit manuscripts electronically following the instructions provided on the APS Information for Authors page. Submission requires the paper is not submitted elsewhere.
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Plant Health Progress (PHP) is a peer-reviewed, multidisciplinary, scientific journal of applied plant health. An official APS journalfounded in 2000, and an online-only resource offered by the Plant Management Network, its goal is to publish new scientific
information to enhance the health, management, and production of agricultural and horticultural crops.
EDITOR-IN-CHIEF:Chandrasekar S. Kousik, USDA Agricultural Research Service, 2700 Savannah Hwy., Charleston, SC 29414 U.S.A.
Phone: +1.843.402.5316 n E-mail: [email protected]
Volume 22, Number 4, 2021
REVIEW
421 An Examination of Apple Powdery Mildew and the Biologyof Podosphaera leucotricha from Past to PresentDavid A. Strickland, Kathie T. Hodge, and Kerik D. Cox
SYMPOSIUM
433 19th Annual Melhus Symposium: Data DrivenPlant HealthRobin A. Choudhury and Sydney E. Everhart
436 Detection of Soilborne Disease Utilizing Sensor Technologies:Lessons Learned from Studies on StemRot of PeanutXing Wei, Marcela Aguilera, Rachael Walcheck, Dorothea Tholl,Song Li, David B. Langston Jr., and Hillary L. Mehl
445 Examining Spatial Distribution and Spread of Fire Blight inApple Orchards: Two Case StudiesAnna Wallis and Kerik D. Cox
450 Management of Hop Powdery Mildew in the Context ofRecent Advances in Pathogen Ecology andPopulation GeneticsWilliam A. Weldon, David H. Gent, and David M. Gadoury
459 Multifaceted Insights on Fusarium Head Blight in SmallGrains in PennsylvaniaMa�ıra R. Duffeck, Emerson M. Del Ponte, and Paul D. Esker
465 Prevention and Detection of Fungicide ResistanceDevelopment in Rhizoctonia zeae from Soybean and Cornin NebraskaNikita Gambhir, Srikanth Kodati, Matthew Huff, Fl�avio Silva,Olutoyosi Ajayi-Oyetunde, Margaret Staton, Carl Bradley,Anthony O. Adesemoye, and Sydney E. Everhart
RESEARCH
470 Greenhouse Data Suggest That Growth Stage ImpactsPhomopsis Stem Canker Severity Associated with Diaporthegulyae on Sunflower (Helianthus annuus)Renan Guidini, Nathan Braun, Mammen Korah,Laura F. Marek, and Febina M. Mathew
474 Evaluation of Geranium Cultivars and Biorational Productsto Control Botrytis Blight in the GreenhouseSunil Shrestha and Mary K. Hausbeck
483 Soybean Yield Loss Estimates Due to Diseases in the UnitedStates and Ontario, Canada, from 2015 to 2019Carl A. Bradley, TomW. Allen, Adam J. Sisson,Gary C. Bergstrom,Kaitlyn M. Bissonnette, Jason Bond,Emmanuel Byamukama, Martin I. Chilvers, Alyssa A. Collins,John P. Damicone, Anne E. Dorrance, Nicholas S. Dufault,Paul D. Esker, Travis R. Faske, Nicole M. Fiorellino,Loren J. Giesler, Glen L. Hartman, Clayton A. Hollier,Tom Isakeit, Tamra A. Jackson-Ziems, Douglas J. Jardine,Heather M. Kelly, Robert C. Kemerait, Nathan M. Kleczewski,Alyssa M. Koehler, Robert J. Kratochvil, James E. Kurle,Dean K. Malvick, Samuel G. Markell, Febina M. Mathew,Hillary L. Mehl, Kelsey M. Mehl, Daren S. Mueller,John D. Mueller, Berlin D. Nelson, Charles Overstreet,G. Boyd Padgett, Paul P. Price, Edward J. Sikora, Ian Small,Damon L. Smith, Terry N. Spurlock, Connie A. Tande,Darcy E. P. Telenko, Albert U. Tenuta, Lindsey D. Thiessen,Fred Warner, William J. Wiebold, and Kiersten A. Wise
496 Maize Seed Contamination and Seed Transmission of MaizeChlorotic Mottle Virus in KenyaEsther N. Kimani, Samuel. M. Kiarie, Cyrus Micheni,Laureen G. Muriki, Douglas. W. Miano, Isaac Macharia,Gary P. Munkvold, William M. Muiru, B. M. Prasanna,and Anne Wangai
503 Impact of Foliar Fungicides on Disease and Silage Qualityof Brown Midrib Corn Hybrids in WisconsinHannah Reed, Brian Mueller, Carol L. Groves,and Damon L. Smith
509 Species and Trichothecene Genotype of PathogensCausing Fusarium Head Blight of Wheat inNebraska, U.S.A.Esteban Valverde-Bogantes, Andreia Bianchini,Stephen N. Wegulo, and Heather E. Hallen-Adams
Plant Health Progress (ISSN 1535-1025) is published by The American Phytopathological Society. 3352 Sherman Court, Suite 202, St. Paul, MN 55121+1.651.454.7250 • https:apsjournals.apsnet.org
Article Publication Charges are mandatory to cover publication costs. Fees are set by the governing council of The American Phytopathological Society. Submitmanuscripts electronically following the instructions provided on the APS Information for Authors page. Submission requires the paper is not submitted elsewhere.
516 Fumigating Citrus with Phosphine Does Not ImpactMarketability or Eating QualityDavid Obenland, James R. Cranney, Steve Tebbets,Spencer Walse, and Mary Lu Arpaia
524 Fusarium Species Associated with Root Rot of Lentil(Lens culinaris) in North DakotaKim Zitnick-Anderson, Taheni Gargouri Jbir, Adam Carlson,Shawn Postovit, Julie Pasche, and Audrey Kalil
529 Survival of Xanthomonas cucurbitae in Different CropRotations, Plant Debris, andWeeds in Pumpkin FieldsSalisu Sulley, Sarah R. Hind, and Mohammad Babadoost
536 Optimizing a Seedling Screening Method for AnthracnoseResistance in WatermelonEdgar Correa, Kevin Crosby, and Subas Malla
544 First Report ofMacrophomina phaseolina, Fusariumbrachygibbosum, and Lasiodiplodia theobromae CausingFungal Watermelon Vine Decline in Southwestand West-Central FloridaCristina Pisani, Scott Adkins, William W. Turechek,Pragna C. Patel, and Erin N. Rosskopf
552 Resistance to Charcoal Rot Identified WithinSoybean Cyst Nematode Resistant AccessionsAlemu Mengistu, Nacer Bellaloui, and Prakash Arelli
SURVEY
560 A Survey of Plant-Parasitic Nematodes in Illinois CornFields, 2018 and 2020Jaeyeong Han, Alison L. Colgrove, N. Dennis Bowman,Nathan E. Schroeder, and Nathan M. Kleczewski
BRIEF
565 First Report ofMycosphaerella dearnessii,Teleomorph of Lecanosticta acicola, in EuropeNebai Mesanza, M�onica Hern�andez, Rosa Raposo,and Eugenia Iturritxa
567 First Report of Powdery Mildew Caused by Podosphaeramacularis on Hemp in OregonTaylor A. Bates, Mary H. Block, Michele S. Wiseman,Andrea R. Garfinkel, David H. Gent, and Cynthia M. Ocamb
570 Detection of the G143A Mutation in the Cytochrome b Geneof Corynespora cassiicola Isolates from Soybeanin TennesseeTyler M. Smith, Heather Y. Kelly, and Kurt H. Lamour
573 First Report ofAlternaria alternata and Fusarium spp. CausingBrown Apical Necrosis inWalnut Fruit in Southern ChileErnesto A. Moya-Elizondo, Mar�ıa Jos�e Lagos,Juan San Martin, and Braulio Ruiz
575 New Mexico Chile Pepper Producers Are Affected by aDiverse Verticillium dahliae Population That IncludesMany Race 2 Strains That Break Ve1-MediatedResistanceMaxim Radionenko and Stephen F. Hanson
DIAGNOSTIC GUIDE
578 A Diagnostic Guide for Volutella Blight AffectingBuxaceaeXiao Yang, Vanina L. Castroagud�ın, Margery L. Daughtrey,Andrew L. Loyd, Jerry E. Weiland, Nina Shishkoff,Fulya Baysal-Gurel, Luisa Santamaria,Catalina Salgado-Salazar, James A. LaMondia,Jo Anne Crouch, and Douglas G. Luster
591 Strawberry Green Petal Disease: A Diagnostic GuideAnne-Sophie Brochu, Douglas Rodr�ıguez-Mart�ınez,Charles Goulet, and Edel P�erez-L�opez
RECOVERY PLAN
596 Recovery Plan for Tar Spot of Corn, Caused byPhyllachora maydisCamila Rocco da Silva, Jill Check, Joshua S MacCready,Amos E. Alakonya, Robert Beiriger, Kaitlyn M. Bissonnette,Alyssa Collins, C. D. Cruz,Paul D. Esker, Stephen B. Goodwin,Dean Malvick, Daren S. Mueller, Pierce Paul, Richard Raid,Alison E. Robertson, Emily Roggenkamp, Tiffanna J. Ross,Raksha Singh, Damon L. Smith, Albert U. Tenuta,Martin I. Chilvers, and Darcy E. P. Telenko
617 ERRATUM
618 ERRATUM
Cover Caption: Fruit rot symptoms and signs of Phytophthora blight caused by Phytophthora capsicion eggplant and pumpkin (Parada-Rojas et al.) Photo credit: Christine D.Smart and Zachariah Hansen, respectively. Microscope images of P. capsici. Photo credit: Camilo H. Parada-Rojas and Lina M. Quesada-Ocampo.
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