throbber
PLDIDE 94(9) 1073-1172(2010)
`ISSN 0191-2917
`VOLUME 94, NUMBER9
`Saies)
`
`lant disease
`
`Syngenta v. UPL, PGR2023-00017
`
`AN INTERNATIONAL JOURNALOF APPLIED PLANT PATHOLOGY
`
`SYNGENTA EXHIBIT 1010
`
`SYNGENTA EXHIBIT 1010
`Syngenta v. UPL, PGR2023-00017
`
`

`

`
`
`
`
`An Official Journal of The American Phytopathological Society
`
`
`
`
`
`September 201 O
`
`FOCUS
`
`Volume 94, Number 9
`
`
`
`1075 The Latest in Plant Pathology and Nematology
`
`
`
`FEATURE
`
`1076 Mancozeb: Past, Present, and Future. M. L. Gu/lino, F. Tinivella, A. Garibaldi,
`
`
`
`
`
`
`
`
`
`G. M. Kemmitt, L. Bacci, and B. Sheppard
`
`RESEARCH
`
`of Macrophomina phaseolina Conidia by Multiple Soybean
`
`
`
`
`1088 Production
`
`
`Isolates in Culture. J. Ma, C. B. Hill, and G. L. Hartman
`
`1093 Increased Severity of Foliar Diseases of Sweet Corn Infected with Maize
`
`
`
`
`
`
`
`Dwarf Mosaic and Sugarcane Mosaic Viruses. M. D. Meyer, and J. K. Pataky
`
`
`1100 Direct Polymerase Chain Reaction-Based Detection of Cercospora beticola
`
`
`
`
`
`
`
`
`
`in Field Soils. R. T. Lartey, T. C. Caesar-TonThat, A. W Lenssen, J. Eckhoff,
`
`S. L. Hanson, and R. G. Evans
`
`1105 Specific Light-Emitting Diodes Can Suppress Sporulation of Podosphaera
`
`
`
`
`
`
`
`
`
`pannosa on Greenhouse Roses. A. Suthaparan, S. Torre, A. Stensvand,
`
`M. L. Herrero, R. I. Pettersen,
`D. M. Gadoury, and H. R. Gisler¢d
`
`1111 Influence of Host Resistance on Stewart's Wilt Forecasts and Probability of
`
`
`
`
`
`
`
`
`
`Exceeding Thresholds for Use of Seed-Treatment Insecticides on Sweet Corn.
`
`
`M. D. Meyer, J. K. Pataky, D. K. Joos, R. W Esgar, and B. R. Henry
`
`and on on Disease Incidence 1118 Effect of Sclerotium Density and Irrigation
`
`
`
`
`
`
`
`
`
`
`Efficacy of Coniothyrium minitans in Suppressing Lettuce Drop Caused by
`
`
`
`
`Sclerotinia sclerotiorum. P. Chitrampalam, T. A. Turini, M. E. Matheron,
`and B. M. Pryor
`
`COVER
`(Clockwise from upper left): Systemic Stewart's
`wilt, caused by Pantoea stewartii subsp. stew­
`artii, on corn (courtesy M. D. Meyer et al., see
`page 111 I); early symptom of leaf blight of the
`air plant Tillandsia tenuifolia caused by Stachy­
`botrys char/arum (courtesy G.-H. Zhao et al.,
`ee page 1166); leaves and stems of lemon balm
`heavily infected with Golovinomyces biocellatus
`(courtesy E. Kassai-Jager et al., see page 1169).
`
`Publisher
`STEVEN C. NELSON
`
`Director of Publications, Production
`
`
`KAREN CUMMINGS
`
`Technical Editors
`
`DIANA ROEDER
`JAN KUHN
`
`Production Supervisor
`
`PATTI EK
`
`
`mosaic virus. 1125 An Experimental Host Range for Triticum
`
`
`T. J. Martin, and J. P. Fellers
`
`D. L. Seifers,
`
`1132 A New Potyvirus
`sp. Infects Verbena Exhibiting Leaf Mottling Symptoms.
`
`
`
`
`J. Kraus, S. Cleveland, M. L. Putnam,
`
`
`
`and I.E. Tzanetakis K. E. Keller, R.R. Martin,
`
`Isolates of of Carbendazim-Resistant 1137 Identification and Characterization
`
`
`
`
`
`
`
`
`Gibberella zeae. X. Liu, Y. Yin, J. Wu, J. Jiang, and Z. Ma
`
`Journals Records Coordinator
`
`of Chrysoporthe cubensis on Eucalyptus and
`
`
`
`
`1143 Identification and Pathogenicity
`INA PFEFER
`Syzygium
`spp. in South China. S. F. Chen, M. Gryzenhout,
`J. Roux, Y. J. Xie,
`
`M. J. Wingfield, and X. D. Zhou
`
`Circulation Coordinator
`
`DAWN WUEST
`
`Advertising Sales
`
`KAREN DEUSCHLE
`
`The American Phytopathological Society
`3340 Pilot Knob Road
`St. Paul, MN 55121
`+1.651.454.7250
`http://apsjournais.apsnet.org
`
`by Released Clones of Gibberella zeae
`
`
`
`1151 Local Distance of Wheat Spike Infection
`
`
`Disseminated from Infested Corn Residue. M. D. Keller, K. D. Waxman,
`
`
`
`
`G. C. Bergstrom, and D. G. Schmale III
`
`1156 Phenolic Responses of Resistant and Susceptible Olive Cultivars Induced by
`
`
`
`
`
`
`
`
`
`Defoliating and Nondefoliating Verticillium dahliae Pathotypes.
`E. A. Markakis,
`
`
`
`
`
`and E. C. Tjamos S. E. Tjamos, P. P. Antoniou, P. A. Roussos, E. J. Paplomatas,
`
`DISEASE NOTES
`
`on African Oil 1163 First Report of Bud Rot Caused by Phytophthora palmivora
`
`
`
`
`
`
`
`Palm in Colombia. G. A. Torres, G. A. Sarria, F. Varon, M. D. Coffey,
`
`M. L. Elliott, and G. Martinez
`
`1163 First Report of Fusarium Wilt of Lavandula pubescens Caused by Fusarium
`
`
`
`
`
`
`oxysporum in Saudi Arabia. K. Perveen and N. Bokhari
`
`in Puccinia striiformis f. sp. tritici in China
`
`
`
`
`1163 First Detection of Virulence
`
`
`
`
`
`to Resistance Genes Yr24 (=Yr26) Present in Wheat Cultivar Chuanmai 42.
`T. G. Liu, Y. L. Peng, W Q. Chen, and Z. Y. Zhang
`
`1164 First Report of Root and Basal Rot of Angelica acutiloba Caused by Fusarium
`
`
`
`
`solani in Taiwan. L. L. Chern, C. T. Feng, C. H. Yt1, and W C. Ho
`
`Plant Disease/ September 201 0 1073
`
`

`

`1164 First Report and Confirmed Distribution of Soybean Sudden Death
`
`
`Plant Disease Reporter,
`
`PLA T DISEASE replaces
`
`
`
`
`published by the United States Department of Agricul­
`
`
`
`Syndrome Caused by Fusarium virguliforme in Southern Michigan.
`
`ture from 1917 through 1979. Volume numbers of
`M. I. Chilvers and D. £. Brown-Rytlewski
`
`PLANT DISEASE are continuous with those of Plant
`
`Pseudomonas
`1164 A New Disease, Bacterial Leaf Spot of Rape, Caused by Atypical
`
`
`
`Disease Reporter.
`viridijlava
`
`in South Korea. /.-S. Myung, Y.-K. Lee, S. W lee,
`W G. Kim, H. S. Shim, and D.-S. Ra
`
`2011 PLANT DISEASE
`Subscription Rates
`and Access Information
`
`1165 First Report of Brown Ring Patch Caused by Waitea circinata var. circinata
`
`
`on Poa a,mua in Wisconsin and Minnesota.
`J. P. Kerns, P. L. Koch,
`B. P. Horgan, C. M. Chen, and F. P. Wong
`
`Print Subscription
`quinquenervia by Melaleuca Trees to Attack by the
`
`
`
`1165 Differential Response
`
`
`$726 USA; $827 elsewhere per year (includes expedited
`
`Rust Fungus Puccinia psidii in Florida.
`M. B. Rayamajhi, P. D. Prall,
`
`
`
`
`deLivery outside the USA). Canadian subscribers must
`T. D. Center, and G. S. Wheeler
`
`
`add 5% GST/HST 10 the elsewhere price (Canadian GST
`#R 129888 I 29).
`
`1166 First Report of Brown Rot Caused by Mo11ili11iafructicola
`
`Affecting Peach
`
`Orchards in Slovenia.
`A. Munda and M. Virscek Marn
`Online Subscriptions
`
`
`
`To request a price quote for electronic subscriptions via
`Causing Leaf Blight of Tillandsia 1166 First Report of Stachybotrys chartarwn
`
`
`
`
`LP. access, to read Tem1s of Use and FAQs for APS
`tenuifolia
`in China. G.-H. Zhao, D.-W. Li, J.-H. Jiang, and J. Peng
`
`Online journal subscriptions, or to view a sample issue
`
`online, go to:
`Perennial Weed 1166 First Report of Anthracnose Stem Canker of the Invasive
`
`
`
`http://apsjoumals.apsnet.org/loi/pdis
`
`
`
`higgi11sia11um Lepidium draba Caused by Colletotrichum in Europe.
`A. J. Caesar, R. T. Lartey, and T. Caesar-TonThat
`
`Single Issue Purchases
`
`
`Current volume year: $69 per issue USA; $75 per issue
`1167 First Report of Calosphaeria pulchella Associated with Branch Dieback of
`
`
`
`
`
`
`elsewhere. Prior volume years: $74 per issue USA; $80
`Sweet Cherry Trees in California.
`F P. Trouillas, J. D. Lorber, F. Peduto, J. Grant,
`per issue elsewhere.
`W W Coates, K. K. Anderson, J. Caprile, and W D. Gubler
`
`Single Article Purchases
`
`
`1167 First Report of Collar and Root Rot Caused by Pythium ultimum on
`
`
`PDFs of articles published within the last 24 months
`A. Garibaldi, G. Gilardi, and M. L. Gu/lino
`
`Coriander in Italy.
`
`
`may be purchased online. Go to:
`http://apsjournals.apsnet.org/loi/pdis
`1168 First Report of Black Root Rot Caused by T hielaviopsis basicola
`
`on
`
`to locate the article and then click the PDF link.
`
`Soybean (Glycine max) in Arkansas.
`W S. Monfort, A. G. Carroll,
`
`
`Articles published more than 24 momhs ago may be
`M. J. Emerson, J. Fortner, and C. S. Rothrock
`
`
`
`accessed online without charge when available. APS
`
`
`
`
`retains full copyright to any article that is purchased or
`
`
`
`
`
`
`
`retrieved with or without payment, and all copyright
`Taiwan.
`L.-H. Huang, H.-H. Tseng, J.-T. Li, and T.-C. Chen
`
`laws apply to any subsequent usage.
`
`
`
`Cucurbits in virus Infecting 1168 First Report of Cucurbit chlorotic yellows
`
`1168 First Report of Altemaria carotiincultae
`
`on Carrot Seed Produced in New
`
`Payment Information
`
`Zealand. R. S. Trivedi, J. G. Hampton, J. M. Townshend, M. V. Jaspers,
`
`
`
`Send subscription payments to APS Headquarters in
`and H. J. Ridgway
`
`the USA. All prices shown are US$, and payments
`
`must be made in US funds through a member bank of
`1169 First Report of Powdery Mildew on Lemon Balm (Melissa officinalis)
`
`Caused
`
`
`
`the USA Federal Reserve System. VlSA. MasterCard,
`
`
`by Golovinomyces biocellatus in Hungary.£.
`Kassai-Jager, L. Kiss, Z. Vaczy,
`
`
`and American Express are also accepted.
`and K. Z. Vaczy
`
`Change of Subscription Address
`
`chinensis Apple Rust on Juniperus
`
`
`1169 First Report of the Telial Stage of Japanese
`
`
`
`Provide your current mailing label to APS USA
`in North America and the Aecial Stage on Malus domestica.
`N. F. Grego,y,
`
`
`
`
`Headquarters with forwarding address information 6
`J. F. Bischoff, L. J. Dixon, and R. Ciurlino
`
`
`weeks before your address change.
`
`Personal Subscriptions
`
`
`
`
`Personal subscriptions are available only to APS
`
`
`members at a discount. Members may subscribe at
`
`
`any time by contacting Denise Kessler, e-mail:
`
`
`
`
`dkessler@scisoc.org, phone: + 1.800.481.2698 or
`
`in California. G. A. Chastagner and K. L. Riley
`+ 1.651.454. 7250.
`
`
`
`1170 First Report of Phytophthora ramorum Infecting California Red Fir
`
`oxysporum 1170 First Report of Fusarium Wilt Caused by Fusarium
`
`
`f. sp. basilici
`
`on Ocimum minimum in Portugal. M. Felgueiras, A. Dias, G. Chicau,
`M. Berbegal, M. Le6n, and J. Armengol
`
`1170 First Report of Puccinia kuehnii, Causal Agent of Orange Rust of Sugarcane,
`
`
`in Brazil.
`D. Barbasso, H. Jordiio, W Maccheroni, J. Boldini, J. Bressiani,
`and A. Sanguino
`PLANT DISEASE (ISSN 0191-2917) is published
`
`
`
`
`monthly by The American Phylopalhological Soci­
`(Mentha 1171 Powdery Mildew Caused by Golovinomyces biocellatus on Spearmint
`
`
`
`ety, 3340 Pilot Knob Road, St. Paul, MN 55121.
`
`spicata) A. Garibaldi, D. Berretti, P. Pensa, and M. L. Gullino
`in Italy.
`
`Periodicals postage paid al St. Paul, MN,
`
`
`and additional mailing offices. USPS 522-750.
`
`
`
`
`
`POSTMASTER: Send address changes to PLANT
`M. Virscek Mam and I. Mavric Plesko
`
`DISEASE, 3340 Pilot Knob Road, St. Paul, MN
`55121.
`
`1171 First Report of Tomato chlorotic dwarf viroid in Petunia spp. in Slovenia.
`
`1171 First Report of Root and Stem Rot Caused by Phytophthora 11icotia11ae
`
`on Peperomia tetraphylla
`in China. D. X. Zeng, X. L. Wu, and Y. H. Li
`
`No endorsement of any statements or claims made in
`
`
`
`
`
`advertisemen1s is assumed by PLANT DISEASE or by
`
`
`The American Phytopathological Society.
`
`1172 First Report of Tomato torrado virus Infecting
`
`L. Bivona, G. Iacono, and M. Davino
`
`Tomato in Italy. S. Davino,
`
`
`(Solidago canadensis)
`1172 First Report of Southern Blight on Canadian Goldenrod
`
`
`
`
`Caused by Sclerotium rolfsii in China. W Tang, Y. Z. Zhu, H. Q. He,
`and S. Qiang
`
`Copyright© 2010 by
`
`
`
`The American Phytopathological ociety
`3340 Pilot Knob Road
`St. Paul, MN 55121
`+l.651.454.7250
`http://apsjournals.apsnet.org
`
`
`
`
`
`August 2010 PLANT DISEASE issued 12 July 2010.
`
`1074 Plant Disease/ Vol. 94 No. 9
`
`

`

`
`
`Plant Disease Board
`
`Editor-in-Chief R. Michael Davis University of California Davis, CA 95616
`
`Feature Editor
`James J. Farrar
`California State University
`Fresno, CA 93740-8033
`
`Disease Notes Assigning Editors
`Jianjun Hao
`Bo Ming Wu
`Michigan State University
`Oregon State University
`East Lansing, MI 48824
`Madras, OR 97741
`
`Focus Editor
`Thor Kommedahl
`University of Minnesota
`St. Paul, MN 55108-6030
`
`Senior Editors
`Kendra Baumgartner
`USDA ARS, University of California
`Davis, CA 95616-5270
`Amy 0. Charkowski
`University of Wisconsin
`Madison, WI 53706-1598
`Lindsey J. du Toit
`Washington State University
`Mount Vernon, WA 98273-4768
`Debra A. Inglis
`Washington State University
`Mount Vernon, WA 98273-4768
`Erin N. Rosskopf
`USDA ARS
`Fort Pierce, FL 34945-3138
`Carl A. Strausbaugh
`USDA ARS NWISRL
`Kimberly, ID 83341-5076
`Associate Editors: B. J. Aegerter, C. A. Bradley, M. E. L. Burrows, D. J. Chitwood, A. E. Dorrance, A. Elling, A. Eskalen, P. D. Esker,
`C. D. Garzon, F. E. Gildow, S. F. Hanson, C. Hong, M. M. Kennelly, M. Lapidot, R. F. Lee, S. M. Marek, M. R. Miles, P.A. Paul, N. Peres,
`M. K. Romberg, D. G. Schmale, III, C. D. Smart, K. C. Steddom, I. E. Tzanetakis, C. Y. Warfield, F. P. Wong, C.-L. Xiao
`
`James W. Buck
`University of Georgia
`Griffin, GA 30223-1797
`Christina Cowger
`USDAARS, North Carolina State Univ.
`Raleigh, NC 27695-7616
`Robert M. Harveson
`University of Nebraska
`Scottsbluff, NE 69361-4907
`Sarah J. Pethybridge
`Botanical Resources Australia
`Ulverstone, Tasmania, Australia
`James J. Stapleton
`University of California
`Parlier, CA 93648
`
`Ronald H. Brlansky
`University of Florida
`Lake Alfred, FL 33850-2243
`James C. Correll
`University of Arkansas
`Fayetteville, AR 72701
`Mark L. Gleason
`Iowa State University
`Ames, IA 50011
`Berlin D. Nelson
`North Dakota State University
`Fargo, ND 58108-6050
`Guido Schnabel
`Clemson University
`Clemson, SC 29634
`
`Editorial Policies
`
`PLANT DISEASE is an official monthly publication of The American Phytopathological Society. This international journal of applied plant
`pathology publishes original research articles, reports of new diseases and epidemics, and feature articles on needs, approaches, and
`accomplishments. Research articles acceptable for publication in PLANT DISEASE report findings that are repeatable, either through
`repetition of experiments or through continuity with other findings, or, for long-term experiments, findings that are consistent over a period
`of years. Authors preparing manuscripts should follow the Instructions for Authors published in the January issue and online. All opinions,
`editorials, and papers published in PLANT DISEASE reflect the views of the authors and are not necessarily the views of the Society or of the
`institutions with which the authors are affiliated. The editors reserve the right to reject or accept letters for publication and to edit letters for
`clarity and conciseness.
`Submission of manuscripts: Submit manuscripts, including Disease Notes and Features, electronically, following closely the Guidelines
`for Electronic Manuscript Submission in the Instructions for Authors provided online at http://apsjournals.apsnet.org. Manuscripts will be
`assigned to an appropriate Senior Editor, who will solicit reviews and make a decision regarding suitability of the submission for
`publication. Submission implies nonsubmission elsewhere and, if the manuscript is accepted, no publication elsewhere in the same form
`without consent. Manuscripts from nonmembers as well as from members of the Society will be considered for publication.
`Page charges: Because of the high cost of publishing, payment of author page charges is mandatory. Current charges are $50 per printed
`page for the first six pages and $80 for each page thereafter for members of The American Phytopathological Society and $130 per printed
`page for nonmembers. In addition, there is a $20 fee charged for each black-and-white figure or line drawing. Color charges are $500 for
`the first illustration, $500 for the second illustration, and $250 for the third and each subsequent color illustration in one article. The charge
`for Disease Notes is $100 for Society members and $160 for nonmembers. The author is billed after the article is printed in the journal.
`Page charge rates are subject to change without notice.
`Online article enhancements. APS offers cost-effective "e-Xtra" options designed to enhance online articles. Authors may publish figures in
`
`color online that appear in black-and-white in print ($20 per figure). Up to five external links from the online table of contents to public
`databases, such as GenBank, or other approved websites will be provided free of charge (additional links @ $5 per link). Supplemental
`materials (e.g., added tables or figures) not in the print version may be published online ($20 per supplement). They are subject to review and
`will be accepted in MS Word, WordPerfect, MS Excel, and .jpeg formats. Disease Notes online may contain up to two figures, provided in
`.jpeg format, with captions of up to 50 words ($20 per figure). Supplemental materials should not be referred to in the text. In addition to e-Xtras,
`authors are invited to submit one-paragraph interpretive summaries of PLANT DISEASE research articles, written for a lay audience, for publication
`free of charge and linked to the online table of contents. See http://apsjournals.apsnet.org for submission instructions for all online options.
`Use of material: PLANT DISEASE is copyrighted, and anyone wishing to use data or illustrations appearing in this journal in another
`publication must obtain permission from The American Phytopathological Society and the author(s) of the paper and provide a line
`crediting PLANT DISEASE as the source.
`Authorization to photocopy copyrighted material for internal or personal use, or the internal or personal use of specific clients, is granted by
`The American Phytopathological Society for libraries and other users registered with the Copyright Clearance Center (CCC) Transactional
`Reporting Service, provided that the base fee of $7.00 per copy of an article is paid directly to CCC, 222 Rosewood Drive, Danvers, MA
`01923; telephone: 978n50-8400. 0191-2917/10 $7.00 + .00
`
`

`

`In
`
`,...,...,s
`C
`
`II s
`
`Maria Lodovica G u l l i no, Federico Tinivella, and
`
`Angelo Garibaldi
`
`
`Agroinnova, U niversity of Torino, Tur i n , Italy
`
`G regory M. Kemmitt
`
`Dow AgroSciences, E u ropean Deve l opment Center,
`
`Abingdon, Oxfordshire, U K
`
`Leonardo Bacci
`
`
`
`Dow AgroSciences Italia srl, Bologna, Italy
`
`Brian Sheppard
`
`Dow AgroSciences, P u nta Gorda, FL 33950, U SA
`
`This feature reviews the broad-spectrum fungicide mancozeb.
`Introduced in 1 962, it stil l plays a significant role in the world
`fungicide market. Mancozeb possesses a number of key attributes
`that have contributed toward its development into a globally impor­
`tant tool in modern chemical-based plant disease management.
`These attributes are discussed from the perspective of both public
`and private research.
`
`not fungicidal in itself, and only when the compound was exposed
`to the air and converted into a fungitoxic active compound did it
`exhibit fungitoxicity. Nabam's high water solubility and relative
`instability meant that performance was somewhat variable (26).
`Heuberger and Manns (79) discovered that adding zinc sulfate to
`the spray tank had a stabilizing effect on the nabam. The new liq­
`uid product was commercialized in 1 944 and given the trade name
`Dithane D- 1 4 (26). From this point forward, utilization of the com­
`History and Role of Mancozeb in Disease Management
`
`
`pound by growers accelerated rapidly, and it became widely
`Dithiocarbamate development. For a review of the develop­
`adopted for management of many vegetable diseases and gained
`particular popularity with potato growers in the United States,
`ment of mancozeb, it is useful to review the history of the develop­
`where it rapidly replaced Bordeaux m ixture. The reaction product
`ment of the dithiocarbarnates as a group. McCallan ( 1 1 9) produced
`that formed in the spray tank when zinc sulfate was added to na­
`an excellent review of this class of products at a time when they
`bam was zinc ethylene bisdithiocarbamate (zineb). Field tests in
`were becoming established as key tools for the management of
`1 945 showed zineb to be a stable and superior fungicide, and it wa
`plant diseases. Dithlocarbamate-type compounds were originally
`rapidly commercialized under the trade name Di thane Z-78. In
`used as accelerators in the rubber vulcanization process ( 1 1 9). The
`1 947, national cooperative potato fungicide trials were organized
`first derivative of a dithiocarbarnate to achieve prominence as a
`in the United States and tested over a 3-year period. In the e stud­
`fungicide was
`tetramethylthluram disulfide, more commonly
`ies, nabam and zineb consistently proved their efficacy for control
`known as thiram, for which a patent was granted in 1 934 (200).
`of late blight caused by P hytophthora infestans and early blight
`Thiram was demonstrated to be an effective seed dressing by
`caused by Alternaria solani on potato. In the following decade,
`Muskett and Calhoun ( 1 45), and Harrington (77) demonstrated
`nabam and zineb were rapidly adopted by growers in a wide range
`thiram's util ity for control of turf diseases. Thiram was not a par­
`of crops. By 1 953, the two products combined were being used on
`ticularly strong product when applied as a foliar spray, and the next
`75% of the total U.S. potato hectarage (26). Other significant U.S.
`generation of more active molecules based on metal salts of dithio­
`uses were on tomatoes, onions, carrots, cucurbits, celery, hops,
`carbamic acid was soon to appear. Ferric d imethyl dithlocarbamate
`spinach, beets, beans, peppers, tobacco, cherries, sweet com, and
`(ferbam) was first reported by Anderson (6) and independently by
`pecans. In Europe, zineb became well established for control of
`Kincaid ( 1 0 1 ). It gave good control of orchard diseases and gained
`grape downy mildew (P lasmopara viticola) and apple scab (Ven­
`wide acceptance as a spray for ornamentals due, in part, to the fact
`turia inaequalis). In 1 952, Rohm and Haas started to operate a
`that its potential for phytotoxicity was significantly less than those
`commercial plant in France for the manufacture of Di thane.
`of copper or sulfur sprays. Following ferbam was the closely re­
`The development of new EBDCs continued apace, and DuPont
`lated ziram (zinc dimethyldithiocarbamate), which was found to be
`was granted a patent for manganese ethylene bisdithiocarbamate
`more useful on vegetable crops (80,2 1 1 ) .
`(maneb) in 1 950 (6 1 ). Maneb was more active than nabam or zineb
`The first dithiocarbamates were prepared from a monoamine and
`and raised the bar for performance yet further. In 1 962, Rohm and
`carbon disulfide. In 1 940, W. F. Hester of Rohm and Haas, Inc.,
`Haas registered the zinc ion complex of maneb (mancozeb), which
`prepared a dithiocarbamate from a diamine. Hester's compound,
`was to become the most important and commercially significant of
`disodium ethylene bisdithiocarbamate (nabam), can be considered
`all the EBDCs. Two further alkylene bisdithiocarbamate fungicides
`the first true ethylene bisdithiocarbamate (EBDC). A patent was
`were also developed at around the same time as mancozeb. Pro­
`awarded on the compound in 1 943, and the first published scien­
`pineb was first reported in 1 963, and metiram was first introduced
`tific report appeared in print in the same year (46). Nabam was
`into Germany by BASF around 1 958 (20 1 ). By the mid- 1 960s, the
`unstable as a solid and had to be used in liquid form. Thirteen
`EBDC fungicides were considered to be the most important and
`years after its introduction, it was demonstrated that nabam was
`versatile group of organic fungicides yet discovered ( 1 1 9) . This
`situation led to the development of mancozeb. In the intervening 46
`years since commercialization, mancozeb has been developed in
`over 70 crops for the control of numerous fungal plant pathogens.
`Key representative uses for mancozeb spectrum and utility are
`found aero s a cosmopolitan range of plant groups and fungal dis­
`eases (Table 1 ). This theme will be discussed in more detail later in
`this paper. As a succes ful commodity product, mancozeb is cur­
`rently produced by numerous manufacturers around the world.
`
`Corresponding author: M . L. Gullino, Agroinnova, University of Totino, Via
`Leonardo da Vinci, 44, 1 00095 Grugliasco, Turin, Italy;
`E-mail: marialodovica.gullino@unito.it
`
`doi : 1 0. 1 094/PDI S-94-9- 1 076
`© 20 1 0 The American Phytopathological Society
`
`1 076 Plant Disease / Vol. 94 No. 9
`
`

`

`the leading registrant and
`Dow AgroSciences (DAS) operates a
`producer fol lowing its acquisition of the molecule with its purchase
`of the Rohm and Haas agrochemical business in 200 1 . Mancozeb
`has become an internationally traded product, and DAS currently
`supports registrations and uses for mancozeb in almost 1 20 coun­
`tries worldwide. Until 2004, mancozeb was the primary fungicidal
`active ingredient a measured by total annual sales (48). In 2007,
`global sales were around US$500 million, second only to tebu­
`conazole with $525 million (48). If we consider the value of sales
`of co-formulations of mancozeb with other fungicides, this figure
`rises to approximately $740 million in 2007 (48). During a long
`history of commercialization and continuous development, numer­
`ous different formulations of mancozeb have been developed for
`specific crop uses and markets around the world. Although use of
`mancozeb alone is sti l l significant, around 33% of the active ingre­
`dient sold in 2007 was applied in co-formulation with another
`active ingredient, usually a systemic single-site inhibitor, e.g., me­
`fenoxam. Mancozeb is typically included in these mixtures as a
`tool to help with resistance management and to broaden the pec­
`trum of the product. Representative examples of key mancozeb
`mixture partners include benalaxyl, benalaxyl M (kiralaxyl), ben­
`thiavalicarb, copper, cymoxanil, dimethomorph, famoxadone, fena­
`midone, folpet, fenbuconazole, fosetyl-aluminum, iprovalicarb,
`mandipropamid, mefenoxam, metalaxyl, myclobutanil, sulfur, and
`zoxamide.
`
`Table I. Key representative uses of mancozeb
`
`
`Crop
`Major disease
`Pathogen controlled
`Early blight
`Potato
`A lternaria solani
`Late blight
`Phytophtlwra infestans
`Early blight
`Tomato
`Altemaria solani
`Late blight
`Phytophthora infestans
`Leaf pot
`Septoria lycopersici
`Leaf mold
`Cladosporium fulvum
`A nthracnose
`Colletotrichum coccodes
`
`Bacterial speck
`Pseudomonas syringae
`and spot
`Xamhomonas campestris
`Downy mildew
`Grapevine
`P/asmopara viticola
`Black rot
`Guignardia bidwel/ii
`Rotbrenner
`Pseudopezicula tracheiphi/a
`Phomopsis
`Phomopsis viticola
`Anthracnose
`Colletotrichum spp.
`Citrus
`Black spot
`Guignardia citricarpa
`Melanose
`Diaporthe cirri
`Brown rot
`Phytophthora spp.
`Scab
`Pome fruit
`Venturia inaequalis
`Banana
`Black sigatoka
`Mycosphaerella fijiensis
`Downy mildew
`Cucurbits
`Pseudoperonospora cubensis
`Anthracnose
`Colletotrichum orbiculare
`Alternaria
`A ltemaria altemata
`Gummy stem blight
`Didymella bryoniae
`
`
`Bacterial di ease Xanthomonas campestris pv.
`cucurbitae, Pseudomonas
`syringae
`
`Lettuce Downy mildew
`Bremia /actucae
`Downy mildew
`Onions
`Peronospora destructor
`Gray mold
`Botrytis squamosa
`Rust
`Stone fruit
`Tranzschelia discolor
`Rust
`Corn
`Puccinia sorghi
`Helminthosporium
`Helmimhosporium maydis
`leaf blight
`Downy mildew
`Crucifers
`Peronospora parasitica
`Wheat
`Leaf spot
`Mycosphaerel/a graminicola
`Mangoes
`Anthracnose
`Colletotrichum gloeosporioides
`Peanuts
`
`Cercospora leaf spot
`Cercospora arachidicola
`Sugarbeet
`
`Cercospora leaf spot
`Cercospora beticola
`
`Multiple diseases
`Turf and
`ornamentals
`
`Mode of Action and Spectrum of Activity
`Chemistry and biochemical mode of action. Mancozeb [ [ l ,2-
`ethanediylbis]carbamodithioate] ] (2-)]manganese mixture with
`[ [ 1 ,2-ethanediylbis[carbamodithioate)](2-)zinc belongs to the di­
`thiocarbamate grouping of fungicides and more specifically to the
`class of compounds known as ethylene bisdithiocarbamates
`(EBDCs). This group of compounds also includes mancozeb's close
`relatives: maneb, metiram, propineb, and zineb (Fig. 1 ). Mancozeb
`
`MA COZEB
`
`s
`
`II H2
`/ c
`/ c
`"-
`"-
`
`H
`
`/ N
`"-
`
`�
`
`H
`N
`
`C
`H2
`
`Mn++
`(Zn)y
`/ s·
`
`C
`
`II
`
`x:y = 1 :0.091
`
`X
`
`MANEB
`
`H
`
`Mn++
`
`s
`II
`H2
`·s/c"- N/ c"- c/ N"- c/ s·
`II
`
`H
`
`H2
`
`X
`
`METIRAM
`
`X
`
`PROPINEB
`
`ZfNEB
`
`X
`
`Zn++
`
`X
`
`Fig. 1 . Structural formula of mancozeb and related compounds.
`
`Plant Disease/ September 201 0 1077
`
`

`

`is classified by the Fungicide Resistance Action Committee
`(FRAC) in mode-of-action group M (Multi Site Action). Mancozeb
`itself is not fungicidal and can effectively be considered a pro­
`fungicide which, when exposed to water, breaks down to release
`ethylene bisisothiocyanate ulfide (EBIS), which i then converted
`via the action of UV light into ethylene bisisothiocyanate (EBI).
`Both EBIS and EBI are believed to be the active toxicants and are
`thought to interfere with enzymes containing sulphydryl groups.
`This fatal disruption of core enzymatic processes is postulated to
`inhibit or interfere with at least six different biochemical processes
`within the fungal cell cytoplasm and mitochondria (92, 1 1 3).
`Biological activity. The direct effect of mancozeb upon core
`biochemical proce ses within the fungus results in inhibition of
`spore germination ( 1 95,2 1 0,2 1 3). Mancozeb displays the charac­
`teristics of a typical multi-site protectant-only fungicide, in that
`following application onto the target plant, the compound remains
`
`on the leaf surface and does not penetrate through the cuticle to
`where systemic redistribution can occur (9 1 ). This is clearly impor­
`tant because penetration of a general toxophore such as mancozeb
`into plant cells would likely cause phytotoxicity. Fortunately, man­
`cozeb has an excellent record of crop safety over a wide range of
`crops and environmental conditions. Mancozeb does not how
`curative properties when sprayed onto plants where disease has
`already established. It is assumed this is due to the fact that disease
`is already established inside the plant tissue where mancozeb can­
`not penetrate.
`The rate of breakdown of mancozeb into EBIS and EBI can di­
`rectly affect the residual activity of the compound on plant foliage.
`Each mancozeb particle consi ts of a zinc-rich shell surrounding a
`central nucleus of polymer-structured EBDC. This structure is
`extremely stable, and the low solubility of the zinc shell means
`EBDC can pass through this layer and be deposited on the leaf
`
`Table 2. Effectiveness (%) of mancozeb applied alone for the control of key pathogens on different crops
`
`Pathogen
`
`Crop
`
`Dose
`(g a.iJha)
`
`Effectiveness
`( % )•
`
`Reference
`
`Phylum/
`Kingdom
`
`Oomycetes
`
`Onion (Allium cepa L.)
`Peronospora destructor
`Mustard (Brassicajuncea L.)
`Albugo cruciferarum
`Rocket (Eruca sativa L.)
`Peronospora parasitica
`Pseudoperonospora cubensis Melon (Cucumis me/a L.)
`Cucumber (Cuc11111is satil'us L.)
`Pseudoperonospora cubensis
`Luffa vine (Lu/fa acutangula L.)
`Pse11dopero11ospora cube11sis
`Apple (Ma/us spp.)
`Phytophthora cactorum
`Strawberry (Fragaria x ananassa)
`Phytophthora fragariae
`Lettuce (Lactuca sativa L.)
`Bremia /actucae
`Chick-pea (Cicer arietinw11 L.)
`Phytop/zthora l'ignae
`Potato (So/anum tuberos111n L.)
`Phytophthora i11festa11s
`
`400-5.600
`2,000
`1,280
`1.600
`1,600
`1 ,125-2,500
`2,240
`4,000-8,000
`1,440-1,600
`1,440
`1,360-3,000
`
`Phytophthora infestans
`Plasmopara viticola
`
`Tomato (Solanum lycopersicu111 L.)
`Vine ( Vitis vi11ifera L.)
`
`2,500-3,000
`800-3,600
`
`Ascomycetes
`
`Peronospora belbalzrii
`Peronospora sparsa
`Guignardia citricarpa
`Claviceps africana
`Podosphaera xcmthii
`
`Didyme/La b1)'011iae
`Didymella bryoniae
`Taphrina deformcms
`Venturia inaequa/is
`
`Basil (Ocimum basilic11111 L.)
`Rose (Rosa spp.)
`Orange (Citrus si11e11sis L.)
`Sorghum (Sorghum vulgare L.)
`Watermelon
`(Citrullus lanatus Thunb.)
`Watermelon
`Melon
`Peach (Pnmus persica L.)
`Apple
`
`1,600
`1,440
`1,600-2,400
`1,500
`2,550
`
`2,520
`1.400
`1,600-2,500
`2,500-5,200
`
`50 ± 32
`83
`97
`62 ± 21
`50 ± 2
`53 ± 18
`60 ± 17
`46 ± 31
`52 ± 41
`50
`73 ± 22
`
`61 ± 26
`79 ± 22
`
`54 ± 10
`I I
`64 ± 30
`68
`41 ± 14
`
`33 ± 31
`87 ± 10
`75 ± 16
`66 ± 20
`
`43, 86. 162, 186
`189
`131
`11, 100, 116
`135
`93
`158
`140
`62, 209
`59
`7, 23, 39, 57. 134, 146,
`192
`13, 66, 152, 202
`l, 7, 8, 31, 40. 47, 51, 52.
`53. 54, 65, 75. 114, 136,
`137, 138, 139, 143. 156.
`157, 160, 167. 208
`133
`151
`41. 170. 171
`164
`98
`
`84, 97. 168
`100, 168
`122, 175, 1 96
`9, 55, 104. 105, 150, 172,
`203. 2 1 5
`9, 29
`
`Gloeodes pomigena and
`Zygophiala jamaicensis
`Botryosphaeria obtusa
`Aureobasidium pullulans
`Microdochium panattoniana
`Mycosphaerella arac/zidis
`Heterosporium echi11ulat111n
`Deuteromycetes Altemaria spp.
`
`Bot1)'tis spp.
`Altemaria porri
`Stemphyliwn vesicarium
`Altemaria porri
`Stemphylium ,•esicarium
`Altemaria brassicae
`Altemaria bmssicae
`Alternaria dauci
`Sept0ria apiicola
`Septoria spp.
`Fusarium graminearwn
`Bipolaris ory:ae
`
`Apple
`
`3.554
`
`67
`
`Apple
`Pear (Pyrus spp.)
`Lettuce
`Peanut (Arachis hypogaea L.)
`Carnation (Dianthus spp.)
`Tangelo (Citrus tangelo, C. reticulata
`Blanco x C. paradisi

This document is available on Docket Alarm but you must sign up to view it.


Or .

Accessing this document will incur an additional charge of $.

After purchase, you can access this document again without charge.

Accept $ Charge
throbber

Still Working On It

This document is taking longer than usual to download. This can happen if we need to contact the court directly to obtain the document and their servers are running slowly.

Give it another minute or two to complete, and then try the refresh button.

throbber

A few More Minutes ... Still Working

It can take up to 5 minutes for us to download a document if the court servers are running slowly.

Thank you for your continued patience.

This document could not be displayed.

We could not find this document within its docket. Please go back to the docket page and check the link. If that does not work, go back to the docket and refresh it to pull the newest information.

Your account does not support viewing this document.

You need a Paid Account to view this document. Click here to change your account type.

Your account does not support viewing this document.

Set your membership status to view this document.

With a Docket Alarm membership, you'll get a whole lot more, including:

  • Up-to-date information for this case.
  • Email alerts whenever there is an update.
  • Full text search for other cases.
  • Get email alerts whenever a new case matches your search.

Become a Member

One Moment Please

The filing “” is large (MB) and is being downloaded.

Please refresh this page in a few minutes to see if the filing has been downloaded. The filing will also be emailed to you when the download completes.

Your document is on its way!

If you do not receive the document in five minutes, contact support at support@docketalarm.com.

Sealed Document

We are unable to display this document, it may be under a court ordered seal.

If you have proper credentials to access the file, you may proceed directly to the court's system using your government issued username and password.


Access Government Site

We are redirecting you
to a mobile optimized page.





Document Unreadable or Corrupt

Refresh this Document
Go to the Docket

We are unable to display this document.

Refresh this Document
Go to the Docket