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Phytophthora kernoviae

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under-foliage of the forest along with ornamental species. It is here where the sporulation occurs on the infected shoots and foliage, and is able to cause infection of the surrounding trees, giving rise to bleeding cankers on the stems. This pathogen's adaption for aerial dispersal is a key factor in its transmission from initial ornamental host to tree species.
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is that in one study, only two thirds of typical infections were symptomatic, making it easy for this pathogen and infection to go unnoticed from typical visual inspection. Before infecting the inner bark of European Beech trees, the pathogen causes leaf necrosis and the dieback of shoots in the
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produce sporangia that are dislodged by natural occurrences and spread to nearby plant tissue. In lab settings the production of these sporangia are documented within one week, with the sproangia present six days after inoculation causing documented disease in new plant tissues. The sporangia of
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are another susceptible host. The pathogen infects and causes many smaller bleeding lesions along the trunk and can even cause lesions on leaf tips. Both shrubs and trees share the characteristic symptoms of leaf necrosis with lesions on the stem and trunk proving the severity of this disease.
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underneath the phloem lesions, which enables it to spread further throughout the vascular plant tissue and give rise to new phloem lesions. Furthermore, the pathogen present in the xylem leads to local dysfunction that furthers to damage the plant tissues, and move into previously healthy
546:. Oospores can germinate and create mouse-shaped sporangia. Sporangia serve as dispersal structures and create and release Zoospores, motile infectious spores. Once released, oospores germinate on the host and infect target host tissues. After infection if the conditions are correct, 685:
will generally show bleeding lesions and discoloration. The color varies based on exposure to oxygen and elapsed time from infection. Often, these lesions will have pink or orange fluid-filled cavities called lagoons in the underlying phloem. The pathogen then occupies the
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of trees or complete removal of shrub growth and thorough sanitation including removal of plant debris and leaves in infected area have been attempted to control the spread of the disease. Removal of standing water, properly timed watering and proper
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are spread locally through wind and water dispersion, infecting nearby susceptible tissues, long distance travel is occurs through the movement of infected plant tissues and in soil carried on vehicles, animals and footwear.
638:, commonly called Bilberry. This pathogen causes significant necrosis on leaves, bleeding stem lesions, and stem dieback as the primary symptoms, which occur at an impressive rate. Countless species including 486:
may be used in some cases, while these fungicides do not actually kill the organism but prevent it from becoming established or continued growth. Another method currently being used is controlling by culling
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infect through release and wind dispersal of zoospores. It is quick to take advantage of wounds already present on its host, but does not require the host to be injured. One interesting aspect of
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sometimes extending to the base of the leaf, affecting old and young leaves equally. In addition to this darkening lesion on the stem, leaves can get severe enough lesions to become
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help to prevent the spread of spores through water. In areas of large infection bans can be placed on the removal of host plants and foliage from them. In addition to this bans on
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for further infection. This disease has an optimal growing range of 26–16 °C (79–61 °F). This range suggests that it may have originated in a temperate climate, possibly
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and cause entire leaf death. These lesions begin as a progressive blackening of the leaf tissue and spread across the leaf surface. In some cases this necrosis causes dieback and
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makes it an even more significant concern considering that the mainland of the UK has diverse ecosystems that are susceptible to the impact of this plant pathogen. From the
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has penetrated the xylem, it can continue penetrating for well over 24 months. Tree mortality soon follows, in the matter of a few years from the initial time of infection.
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for the disease, humans can transport spores via agricultural equipment, on shoe bottoms, and direct plant movement. These are the most significant vectors for the disease.
542:. Sporangia are only formed on hosts with susceptible foliage, trunk cankers have not exhibited sporulation and do not spread disease. This creates a simple life cycle for 722: 1193: 811: 430:
spreads most quickly and detrimentally in moist conditions such as direct rainfall and also those of heavy humidity. Rain and heavy winds help in the dispersal of
180: 499:. More studies will need to be conducted in the spread and reproduction of this disease before more advanced chemical management methods become available. 462:
Since this disease has more recently been identified management practices are still developing. For best management it is most important to remove the
1123: 1725: 385:) host symptoms include dark brown to blue black lesions on the trunk ranging in size and shape depending on severity of the infection. Tulip trees 419:
While positive samples indicate the presence of this pathogen. In addition to this you can use isolation followed by morphological identification.
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pathogen was first discovered in the 1990s, yet only gained widespread attention when it was identified as one of the causal agents, along with
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on the infected plant. While symptoms for trees hosts are similar they have a few distinct differences. For the European beech (
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sp. nov., an invasive pathogen causing bleeding stem lesions on forest trees and foliar necrosis of ornamentals in the UK"
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sp. Nov., an invasive pathogen causing bleeding stem lesions on forest trees and foliar necrosis of ornamentals in the UK"
1735: 1204: 822: 1161: 1674: 853:Современная микология в России. Том 3. Материалы 3-го съезда микологов России. М., Национальная академия микологии 1387: 1056: 1656: 1630: 612:
host, infection is able to spread via the air to the bark of tree species, with the European beech tree (
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has caused marked damage to ornamentals and species of trees in the Southwest United Kingdom. The
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Brasier, Clive M.; Beales, Paul A.; Kirk, Susan A.; Denman, Sandra; Rose, Joan (1 August 2005).
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Proceedings of the Second Sudden Oak Death Science Symposium: The state of our knowledge
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being especially susceptible. As of 2005, it was confined to a relatively small area of
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after the ancient name for Cornwall, Kernow. It causes large stem lesions on beech and
45: 297:. Since then many other plants have been identified as natural hosts of the pathogen. 1692: 1578: 1521: 1516: 1487: 1465: 1461: 1419: 1368: 1363: 1338: 1299: 1260: 1239: 1037: 1029: 749: 298: 287: 1583: 1511: 1457: 1411: 1358: 1295: 1286:: host susceptibility and sporulation potential on foliage of susceptible trees1". 1255: 1194:"A threat to our woodlands, heathlands and historic gardens Phytophthora kernoviae" 1021: 945: 741: 577: 370: 281: 201: 131: 1661: 968: 1569: 580:. Although the main concentration of this pathogen is primarily in South West 404: 275: 196: 121: 88: 75: 1415: 1025: 745: 1714: 1525: 1469: 1372: 1033: 692: 628:
trade. Due to the national and international demand of these plant products,
515: 467: 451: 415:. If either of these tests come back negative you have a negative sample for 412: 303: 251: 867: 782: 1635: 1423: 1041: 753: 625: 476: 365: 293: 141: 101: 1400:, three species recovered from areas in California with sudden oak death" 849:"Phytophthora kernoviae – новый патоген декоративных и древесных культур" 585: 463: 447: 308: 1238:
Fichtner, E.J.; Rizzo, D.M.; Kirk, S.A.; Webber, J.F. (24 August 2011).
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has such serious symptoms it should be seen as a serious threat to both
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can be enforced to manage spore transport through human activity. Anti-
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Denman, S.; Kirk, S. A.; Moralejo, E.; Webber, J. F. (1 April 2009). "
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Beales, P. A.; Giltrap, P. G.; Payne, A.; Ingram, N. (1 April 2009).
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Brasier, C. M., et al. "Comparative host range and aggressiveness of
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and Cheshire suggesting that the pathogen may be being spread by the
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in England and Wales - Public Consultation and New Programme"
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Brasier, C; Beales, PA; Kirk, SA; Denman, S; Rose, J (2005).
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before being introduced to the UK. While there are no known
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Diagnosis of the disease can be difficult as symptoms for
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species to be found in the UK in a decade. It was named
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plants in the area of infection. Along with this the
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United States Department of Agriculture 949: 716: 714: 712: 1726:Water mould plant pathogens and diseases 821:. FERA. 26 February 2009. Archived from 40:Necrotic bark on an infected beech tree 1244:to select North American native plants" 1188: 1186: 1072:United States Department of Agriculture 806: 804: 681:Once on European beech trees, infected 1713: 1385: 1277: 1159: 709: 604:Furthermore, the aggressive nature of 1545: 1544: 1481: 1479: 1435: 1433: 1311: 1309: 1233: 1231: 1229: 1227: 1225: 1103:www.botanical-society-scotland.org.uk 812:"Plants recorded as natural hosts of 211:. It was first identified in 2003 in 1685:dd31504b-1c05-412c-9ecc-f5593d29a7b9 1183: 963: 961: 801: 199:that mainly infects European beech ( 1339:"A new threat to UK heathland from 1054: 13: 1476: 1430: 1306: 1222: 1092: 301:has revealed that an infection on 14: 1747: 1536: 1278:Denman, S.; et al. (2006). " 958: 658:are all especially vulnerable to 315:. The pathogen was also noted on 1517:10.1111/j.1365-3059.2006.01511.x 1462:10.1111/j.1365-2338.2009.02243.x 1364:10.1111/j.1365-3059.2008.01961.x 1300:10.1111/j.1365-2338.2006.01014.x 1261:10.1111/j.1365-3059.2011.02506.x 1099:| Botanical Society of Scotland" 909:Nevada Department of Agriculture 895: 49: 1488:"Colonization of tree xylem by 1404:The British Mycological Society 1388:"Phylogenetic relationships of 1386:Martin, Frank (December 2003). 1379: 1330: 1153: 1116: 1086: 1048: 665: 1160:Benson, Mike (November 2008). 922: 889: 865: 859: 840: 775: 592:, and even further north into 422: 1: 702: 559: 502: 457: 225:. This made it the third new 1169:Agriculture Research Service 584:, its reach has extended to 526:species are not observed in 7: 620:but has also been found in 346: 10: 1752: 1736:Protists described in 2003 1553: 1416:10.1017/S0953756203008785 1026:10.1017/S0953756205003357 866:GB, Forestry Commission. 847:Александров И.Н. (2012). 746:10.1017/S0953756205003357 170: 163: 46:Scientific classification 44: 39: 30: 23: 600:, most significantly on 651:Arctostaphylos uva-ursi 388:Liriodendron tulipifera 311:in 1950, was caused by 258:Liriodendron tulipifera 1555:Phytophthora kernoviae 1446:Phytophthora kernoviae 1341:Phytophthora kernoviae 1321:Phytophthora kernoviae 1280:Phytophthora kernoviae 1242:Phytophthora kernoviae 1130:Phytophthora kernoviae 1063:Phytophthora kernoviae 1008:Phytophthora kernoviae 932:Phytophthora kernoviae 900:Phytophthora kernoviae 870:Phytophthora kernoviae 814:Phytophthora kernoviae 725:Phytophthora kernoviae 671:Phytophthora kernoviae 630:Phytophthora kernoviae 606:Phytophthora kernoviae 566:Phytophthora kernoviae 553:Phytophthora kernoviae 548:Phytophthora kernoviae 544:Phytophthora kernoviae 540:Phytophthora kernoviae 528:Phytophthora kernoviae 508:Phytophthora kernoviae 428:Phytophthora kernoviae 401:Phytophthora kernoviae 353:Phytophthora kernoviae 231:Phytophthora kernoviae 192:Phytophthora kernoviae 174:Phytophthora kernoviae 25:Phytophthora kernoviae 656:Rhododendron ponticum 493:Rhododendron ponticum 247:Rhododendron ponticum 208:Rhododendron ponticum 1490:Phytophthora ramorum 1442:Phytophthora ramorum 1390:Phytophthora ramorum 1317:Phytophthora ramorum 1126:Phytophthora ramorum 1059:Phytophthora ramorum 1014:Mycological Research 971:Phytophthora ramorum 734:Mycological Research 520:Phytophthora ramorum 397:Phytophthora ramorum 222:Phytophthora ramorum 1345:Vaccinium myrtillus 1139:Forestry Commission 1074:. US Forest Service 876:www.forestry.gov.uk 635:Vaccinium myrtillus 363:. On the shrubs of 341:Podocarpus salignas 333:Vaccinium myrtillus 16:Species of oomycete 1210:on 8 December 2015 828:on 8 December 2015 510:can survive as an 299:Molecular analysis 1708: 1707: 1693:Open Tree of Life 1547:Taxon identifiers 1410:(12): 1379–1391. 1398:P. pseudosyringae 951:10.1111/epp.12022 789:. Forestry.gov.uk 538:were observed on 288:Michelia doltsopa 188: 187: 156:P. kernoviae 1743: 1701: 1700: 1688: 1687: 1678: 1677: 1665: 1664: 1662:NHMSYS0020503261 1652: 1651: 1639: 1638: 1626: 1625: 1613: 1612: 1600: 1599: 1587: 1586: 1574: 1573: 1572: 1542: 1541: 1530: 1529: 1519: 1483: 1474: 1473: 1437: 1428: 1427: 1383: 1377: 1376: 1366: 1334: 1328: 1313: 1304: 1303: 1275: 1266: 1265: 1263: 1235: 1220: 1219: 1217: 1215: 1209: 1203:. Archived from 1198: 1190: 1181: 1180: 1178: 1176: 1166: 1157: 1151: 1150: 1148: 1146: 1136: 1120: 1114: 1113: 1111: 1109: 1093:Mathew, Elliot. 1090: 1084: 1083: 1081: 1079: 1069: 1055:Walters, Keith. 1052: 1046: 1045: 1001: 992: 991: 989: 987: 965: 956: 955: 953: 926: 920: 919: 917: 915: 906: 893: 887: 886: 884: 882: 863: 857: 856: 844: 838: 837: 835: 833: 827: 820: 808: 799: 798: 796: 794: 779: 773: 772: 770: 768: 763:on 15 March 2012 762: 756:. Archived from 731: 718: 614:Fagus sylvatica) 578:sudden oak death 534:, oospores, and 530:. Production of 321:Gevuina avellana 282:Gevuina avellana 176: 54: 53: 35: 21: 20: 1751: 1750: 1746: 1745: 1744: 1742: 1741: 1740: 1711: 1710: 1709: 1704: 1696: 1691: 1683: 1681: 1673: 1668: 1660: 1655: 1647: 1642: 1634: 1629: 1621: 1616: 1608: 1603: 1595: 1590: 1582: 1577: 1568: 1567: 1562: 1549: 1539: 1534: 1533: 1504:Plant Pathology 1484: 1477: 1438: 1431: 1384: 1380: 1351:Plant Pathology 1335: 1331: 1314: 1307: 1276: 1269: 1248:Plant Pathology 1236: 1223: 1213: 1211: 1207: 1196: 1192: 1191: 1184: 1174: 1172: 1164: 1158: 1154: 1144: 1142: 1134: 1122: 1121: 1117: 1107: 1105: 1091: 1087: 1077: 1075: 1067: 1053: 1049: 1002: 995: 985: 983: 977:/RHS Gardening" 967: 966: 959: 944:: 81–93. 2013. 928: 927: 923: 913: 911: 904: 896:Wang, Shouhua. 894: 890: 880: 878: 864: 860: 845: 841: 831: 829: 825: 818: 810: 809: 802: 792: 790: 781: 780: 776: 766: 764: 760: 740:(Pt 8): 853–9. 729: 719: 710: 705: 668: 562: 505: 460: 425: 383:Fagus sylvatica 349: 325:Ilex aquifolium 202:Fagus sylvatica 184: 178: 172: 159: 132:Peronosporaceae 48: 17: 12: 11: 5: 1749: 1739: 1738: 1733: 1728: 1723: 1706: 1705: 1703: 1702: 1689: 1679: 1666: 1653: 1640: 1627: 1614: 1601: 1588: 1575: 1559: 1557: 1551: 1550: 1538: 1537:External links 1535: 1532: 1531: 1510:(2): 227–241. 1475: 1456:(1): 105–111. 1429: 1378: 1329: 1305: 1294:(2): 373–376. 1267: 1254:(2): 224–233. 1221: 1182: 1152: 1115: 1085: 1047: 1020:(8): 853–859. 993: 981:www.rhs.org.uk 957: 930:"PM 7/112 (1) 921: 888: 858: 839: 800: 774: 707: 706: 704: 701: 667: 664: 645:V. vitis-idaea 561: 558: 516:Chlamydospores 504: 501: 459: 456: 452:insect vectors 424: 421: 405:DNA extraction 348: 345: 317:Drimys winteri 307:, recorded in 276:Pieris formosa 197:plant pathogen 186: 185: 179: 168: 167: 161: 160: 153: 151: 147: 146: 139: 135: 134: 129: 125: 124: 122:Peronosporales 119: 115: 114: 109: 105: 104: 99: 92: 91: 86: 79: 78: 76:Diaphoretickes 73: 66: 65: 60: 56: 55: 42: 41: 37: 36: 28: 27: 15: 9: 6: 4: 3: 2: 1748: 1737: 1734: 1732: 1731:Tree diseases 1729: 1727: 1724: 1722: 1719: 1718: 1716: 1699: 1694: 1690: 1686: 1680: 1676: 1671: 1667: 1663: 1658: 1654: 1650: 1645: 1641: 1637: 1632: 1628: 1624: 1619: 1615: 1611: 1606: 1602: 1598: 1593: 1589: 1585: 1580: 1576: 1571: 1565: 1561: 1560: 1558: 1556: 1552: 1548: 1543: 1527: 1523: 1518: 1513: 1509: 1505: 1501: 1499: 1495: 1491: 1482: 1480: 1471: 1467: 1463: 1459: 1455: 1451: 1450:EPPO Bulletin 1447: 1443: 1436: 1434: 1425: 1421: 1417: 1413: 1409: 1405: 1401: 1399: 1395: 1391: 1382: 1374: 1370: 1365: 1360: 1356: 1352: 1348: 1346: 1342: 1333: 1326: 1322: 1318: 1312: 1310: 1301: 1297: 1293: 1289: 1288:EPPO Bulletin 1285: 1281: 1274: 1272: 1262: 1257: 1253: 1249: 1245: 1243: 1234: 1232: 1230: 1228: 1226: 1206: 1202: 1195: 1189: 1187: 1170: 1163: 1156: 1140: 1133: 1131: 1127: 1119: 1104: 1100: 1098: 1089: 1073: 1066: 1064: 1060: 1051: 1043: 1039: 1035: 1031: 1027: 1023: 1019: 1015: 1011: 1009: 1000: 998: 982: 978: 976: 972: 964: 962: 952: 947: 943: 939: 938:EPPO Bulletin 935: 933: 925: 910: 903: 901: 892: 877: 873: 871: 868:"Symptoms of 862: 854: 850: 843: 824: 817: 815: 807: 805: 788: 786: 778: 759: 755: 751: 747: 743: 739: 735: 728: 726: 717: 715: 713: 708: 700: 698: 694: 689: 684: 679: 676: 672: 663: 661: 657: 653: 652: 647: 646: 641: 637: 636: 631: 627: 626:horticultural 623: 619: 615: 611: 607: 603: 599: 595: 591: 587: 583: 579: 575: 571: 567: 557: 554: 549: 545: 541: 537: 533: 529: 525: 521: 517: 513: 509: 500: 498: 495:was found in 494: 490: 489:Rhododendrons 485: 482: 478: 477:hiking trails 474: 469: 468:clear cutting 465: 455: 453: 449: 445: 441: 437: 433: 429: 420: 418: 417:P. kernoviae. 414: 413:real-time PCR 410: 406: 402: 398: 393: 390: 389: 384: 380: 376: 372: 368: 367: 362: 358: 354: 344: 342: 338: 334: 330: 326: 322: 318: 314: 310: 306: 305: 304:Pinus radiata 300: 296: 295: 290: 289: 284: 283: 278: 277: 272: 271: 266: 265: 260: 259: 254: 253: 252:Quercus robur 248: 244: 240: 236: 232: 228: 224: 223: 218: 214: 210: 209: 204: 203: 198: 194: 193: 182: 177: 175: 169: 166: 165:Binomial name 162: 158: 157: 152: 149: 148: 145: 144: 140: 137: 136: 133: 130: 127: 126: 123: 120: 117: 116: 113: 110: 107: 106: 103: 102:Stramenopiles 100: 97: 94: 93: 90: 87: 84: 81: 80: 77: 74: 71: 68: 67: 64: 61: 58: 57: 52: 47: 43: 38: 34: 29: 26: 22: 19: 1721:Phytophthora 1554: 1507: 1503: 1498:Phytophthora 1497: 1494:P. kernoviae 1493: 1489: 1453: 1449: 1445: 1441: 1407: 1403: 1397: 1393: 1389: 1381: 1354: 1350: 1347:in the wild" 1344: 1340: 1332: 1324: 1320: 1316: 1291: 1287: 1283: 1279: 1251: 1247: 1241: 1212:. Retrieved 1205:the original 1200: 1173:. Retrieved 1168: 1155: 1143:. Retrieved 1138: 1129: 1125: 1118: 1106:. Retrieved 1102: 1097:Phytophthora 1096: 1088: 1076:. Retrieved 1071: 1062: 1058: 1050: 1017: 1013: 1007: 984:. Retrieved 980: 975:P. kernoviae 974: 970: 941: 937: 931: 924: 912:. Retrieved 908: 899: 891: 879:. Retrieved 875: 869: 861: 852: 842: 830:. Retrieved 823:the original 813: 791:. Retrieved 785:Phytophthora 784: 777: 765:. Retrieved 758:the original 737: 733: 724: 697:P. kernoviae 696: 680: 675:P. kernoviae 674: 670: 669: 666:Pathogenesis 660:P. kernoviae 659: 655: 649: 643: 640:V. myrtillus 639: 633: 629: 613: 610:Rhododendron 609: 605: 602:R. ponticum. 601: 598:Rhododendron 597: 573: 565: 564:Since 2003, 563: 552: 547: 543: 539: 527: 524:Phytophthora 523: 519: 507: 506: 492: 488: 481:Phytophthora 480: 461: 427: 426: 416: 400: 396: 394: 386: 382: 366:Rhododendron 364: 352: 350: 340: 337:Hedera helix 336: 332: 329:Quercus ilex 328: 324: 320: 316: 313:P. kernoviae 312: 302: 294:Quercus ilex 292: 286: 280: 274: 268: 262: 256: 250: 246: 230: 227:Phytophthora 226: 220: 206: 200: 191: 190: 189: 173: 171: 155: 154: 143:Phytophthora 142: 95: 82: 69: 24: 18: 1394:P. nemorosa 586:South Wales 574:P. ramorum, 464:sporulating 448:New Zealand 423:Environment 309:New Zealand 1715:Categories 1496:and other 1357:(2): 393. 1284:P. ramorum 1214:20 October 1201:fera.co.uk 1175:19 October 1145:19 October 1108:19 October 1078:19 October 986:19 October 914:19 October 881:19 October 703:References 560:Importance 522:and other 503:Life cycle 484:fungicides 473:irrigation 458:Management 446:, or even 1526:1365-3059 1470:1365-2338 1373:1365-3059 1034:1469-8102 536:zoospores 532:sporangia 444:Himalayas 273:species, 150:Species: 63:Eukaryota 1644:MycoBank 1570:Q7189823 1564:Wikidata 1500:species" 1424:15000239 1042:16175787 754:16175787 695:. Once 618:Cornwall 594:Scotland 590:Cheshire 570:oomycete 375:necrotic 347:Symptoms 270:Camellia 264:Magnolia 235:necrosis 213:Cornwall 183:, (2005) 128:Family: 112:Oomycota 108:Phylum: 59:Domain: 1623:3203617 1597:6405528 1327:. 2005. 832:15 July 793:15 July 582:England 512:oospore 497:Ireland 379:cankers 371:petiole 181:Brasier 138:Genus: 118:Order: 1682:NZOR: 1675:325452 1649:305803 1610:PHYTKE 1524:  1468:  1422:  1396:, and 1371:  1040:  1032:  767:21 May 752:  683:phloem 654:, and 442:, the 440:Taiwan 432:spores 361:shrubs 351:Since 243:leaves 205:) and 1698:22095 1636:40972 1584:4HNSZ 1208:(PDF) 1197:(PDF) 1165:(PDF) 1135:(PDF) 1068:(PDF) 905:(PDF) 826:(PDF) 819:(PDF) 761:(PDF) 730:(PDF) 688:xylem 622:Wales 436:China 357:trees 239:stems 195:is a 96:Clade 83:Clade 70:Clade 1670:NCBI 1618:GBIF 1605:EPPO 1522:ISSN 1466:ISSN 1444:and 1420:PMID 1369:ISSN 1319:and 1282:and 1216:2015 1177:2015 1147:2015 1128:and 1110:2015 1080:2015 1061:and 1038:PMID 1030:ISSN 988:2015 973:and 916:2015 883:2015 834:2010 795:2010 769:2009 750:PMID 693:bark 411:and 399:and 359:and 291:and 267:and 255:and 241:and 1657:NBN 1631:ISC 1592:EoL 1579:CoL 1512:doi 1458:doi 1412:doi 1408:107 1359:doi 1343:on 1296:doi 1256:doi 1022:doi 1018:109 946:doi 742:doi 738:109 576:of 409:PCR 245:of 237:of 89:SAR 1717:: 1695:: 1672:: 1659:: 1646:: 1633:: 1620:: 1607:: 1594:: 1581:: 1566:: 1520:. 1508:56 1506:. 1502:. 1492:, 1478:^ 1464:. 1454:39 1452:. 1432:^ 1418:. 1406:. 1402:. 1392:, 1367:. 1355:58 1353:. 1349:. 1308:^ 1292:36 1290:. 1270:^ 1252:61 1250:. 1246:. 1224:^ 1199:. 1185:^ 1167:. 1137:. 1101:. 1070:. 1036:. 1028:. 1016:. 1012:. 996:^ 979:. 960:^ 942:43 940:. 936:. 907:. 874:. 851:. 803:^ 748:. 736:. 732:. 711:^ 662:. 648:, 642:, 588:, 438:, 343:. 339:, 335:, 331:, 327:, 323:, 319:, 285:, 279:, 217:UK 215:, 98:: 85:: 72:: 1528:. 1514:: 1472:. 1460:: 1426:. 1414:: 1375:. 1361:: 1302:. 1298:: 1264:. 1258:: 1218:. 1179:. 1149:. 1132:" 1112:. 1095:" 1082:. 1057:" 1044:. 1024:: 1006:" 990:. 969:" 954:. 948:: 934:" 918:. 898:" 885:. 872:" 855:. 836:. 816:" 797:. 787:" 771:. 744:: 723:"

Index

Necrotic bark on an infected beech tree
Scientific classification
Edit this classification
Eukaryota
Diaphoretickes
SAR
Stramenopiles
Oomycota
Peronosporales
Peronosporaceae
Phytophthora
Binomial name
Brasier
plant pathogen
Fagus sylvatica
Rhododendron ponticum
Cornwall
UK
Phytophthora ramorum
necrosis
stems
leaves
Quercus robur
Liriodendron tulipifera
Magnolia
Camellia
Pieris formosa
Gevuina avellana
Michelia doltsopa
Quercus ilex

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