<?xml version="1.0" encoding="UTF-8"?><xml><records><record><source-app name="Biblio" version="7.x">Drupal-Biblio</source-app><ref-type>17</ref-type><contributors><authors><author><style face="normal" font="default" size="100%">P.B. Hamm</style></author><author><style face="normal" font="default" size="100%">Hansen, E.M.</style></author></authors></contributors><titles><title><style face="normal" font="default" size="100%">Identification of Phytophthora spp. known to attack conifers in the Pacific Northwest</style></title><secondary-title><style face="normal" font="default" size="100%">Northwest Sci.</style></secondary-title></titles><dates><year><style  face="normal" font="default" size="100%">1987</style></year><pub-dates><date><style  face="normal" font="default" size="100%">1987</style></date></pub-dates></dates><publisher><style face="normal" font="default" size="100%">WSU Press</style></publisher><volume><style face="normal" font="default" size="100%">61</style></volume><pages><style face="normal" font="default" size="100%">103-109</style></pages><language><style face="normal" font="default" size="100%">eng</style></language></record><record><source-app name="Biblio" version="7.x">Drupal-Biblio</source-app><ref-type>17</ref-type><contributors><authors><author><style face="normal" font="default" size="100%">P.B. Hamm</style></author><author><style face="normal" font="default" size="100%">Hansen, E.M.</style></author></authors></contributors><titles><title><style face="normal" font="default" size="100%">Pathogenicity of Phytophthora species to Pacific Northwest conifers</style></title><secondary-title><style face="normal" font="default" size="100%">European Journal of Forest Pathology</style></secondary-title></titles><dates><year><style  face="normal" font="default" size="100%">1982</style></year></dates><urls><web-urls><url><style face="normal" font="default" size="100%">http://dx.doi.org/10.1111/j.1439-0329.1982.tb01390.x</style></url></web-urls></urls><number><style face="normal" font="default" size="100%">3</style></number><publisher><style face="normal" font="default" size="100%">Blackwell Publishing Ltd</style></publisher><volume><style face="normal" font="default" size="100%">12</style></volume><pages><style face="normal" font="default" size="100%">167–174</style></pages><language><style face="normal" font="default" size="100%">eng</style></language><abstract><style face="normal" font="default" size="100%">&lt;p&gt;&lt;em&gt;Phytophthora&lt;/em&gt; root rot is described for the first time killing sugar pine &lt;em&gt;(Pinus lambertiana)&lt;/em&gt; in a seed orchard and four species of true fir &lt;em&gt;(Abies&lt;/em&gt; spp.) in a forest nursery. &lt;em&gt;P. cactorum&lt;/em&gt; was recovered from true firs and &lt;em&gt;P. megasperma&lt;/em&gt; was recovered from sugar pine. &lt;em&gt;P. cryptogea&lt;/em&gt; was recovered from sugar pine and true fir but isolates from the two locations differed from each other in pathogenicity and colony appearance. Isolates recovered from these hosts and isolates of 6 &lt;em&gt;Phytophthora&lt;/em&gt; species previously recovered from Douglas-fir &lt;em&gt;(Pseudotsuga menziesii)&lt;/em&gt; were then tested for pathogenicity on seedlings of 9 Northwest conifers. &lt;em&gt;P. megasperma&lt;/em&gt; Group 1, &lt;em&gt;P. cryptogea&lt;/em&gt;, and &lt;em&gt;P. cinnamomi&lt;/em&gt; were pathogenic to all tree species except western redcedar &lt;em&gt;(Thujaplicata).&lt;/em&gt; Western hemlock &lt;em&gt;(Tsuga heterophylla)&lt;/em&gt; and true firs were susceptible to most species tested; ponderosa &lt;em&gt;(P. ponderosa)&lt;/em&gt; and sugar pines were damaged only by &lt;em&gt;P. cryptogea&lt;/em&gt; and &lt;em&gt;P. cinnamomi;&lt;/em&gt; western redcedar was resistant to all isolates.&lt;/p&gt;</style></abstract></record><record><source-app name="Biblio" version="7.x">Drupal-Biblio</source-app><ref-type>17</ref-type><contributors><authors><author><style face="normal" font="default" size="100%">P.B. Hamm</style></author><author><style face="normal" font="default" size="100%">Hansen, E.M.</style></author></authors></contributors><titles><title><style face="normal" font="default" size="100%">Phytophthora pseudotsugae, a new species causing root rot of Douglas-fir</style></title><secondary-title><style face="normal" font="default" size="100%">Can. J. Bot.</style></secondary-title></titles><dates><year><style  face="normal" font="default" size="100%">1983</style></year></dates><urls><web-urls><url><style face="normal" font="default" size="100%">http://rparticle.web-p.cisti.nrc.ca/rparticle/AbstractTemplateServlet?calyLang=eng&amp;journal=cjb&amp;volume=61&amp;year=1983&amp;issue=10&amp;msno=b83-289</style></url></web-urls></urls><volume><style face="normal" font="default" size="100%">61</style></volume><pages><style face="normal" font="default" size="100%">2626–2631</style></pages><language><style face="normal" font="default" size="100%">eng</style></language><abstract><style face="normal" font="default" size="100%">&lt;p&gt;&lt;em&gt;Phytophthora pseudotsugae n. sp&lt;/em&gt;. was isolated from rotted roots of Douglas-fir growing in forest tree nurseries in Oregon and Washington. It is distinguished by large oogonia and oospores, mostly paragynous antheridia, and predominantly spherical or ovoid, persistent sporangia borne primarily on simple and unbranched sporangiophores. Sporangia are formed occasionally in liquid culture, rarely in solid media. &lt;em&gt;Phytophthora pseudotsugae&lt;/em&gt; is distinguished most readily from &lt;em&gt;P. cactorum&lt;/em&gt; by its unbranched sporangiophores and persistent sporangia. It also differs in growth on defined media, electrophoretic protein patterns, and pathogenicity. Comparison is also made with &lt;em&gt;P. iranica&lt;/em&gt;, the other species in group 1 of Waterhouse.&lt;/p&gt;</style></abstract></record><record><source-app name="Biblio" version="7.x">Drupal-Biblio</source-app><ref-type>17</ref-type><contributors><authors><author><style face="normal" font="default" size="100%">P.B. Hamm</style></author><author><style face="normal" font="default" size="100%">Hansen, E.M.</style></author></authors></contributors><titles><title><style face="normal" font="default" size="100%">Improved method for isolating Phytophthora lateralis from soil.</style></title><secondary-title><style face="normal" font="default" size="100%">Plant disease</style></secondary-title></titles><dates><year><style  face="normal" font="default" size="100%">1984</style></year><pub-dates><date><style  face="normal" font="default" size="100%">June 1984</style></date></pub-dates></dates><volume><style face="normal" font="default" size="100%">68</style></volume><pages><style face="normal" font="default" size="100%">517-519</style></pages><language><style face="normal" font="default" size="100%">eng</style></language></record></records></xml>