{"id":2758,"date":"2020-03-27T00:04:46","date_gmt":"2020-03-27T07:04:46","guid":{"rendered":"https:\/\/depts.washington.edu\/hortlib\/pal\/pal-question-556\/"},"modified":"2024-04-17T11:29:02","modified_gmt":"2024-04-17T18:29:02","slug":"cedar-flagging","status":"publish","type":"pal","link":"https:\/\/depts.washington.edu\/hortlib\/pal\/cedar-flagging\/","title":{"rendered":"Cedar flagging"},"content":{"rendered":"

I have noticed that my old cedar has a very large number of cones<\/strong>
\non it this year. Several areas of foliage have<\/strong>
\nturned reddish brown. This has all appeared in the past month or<\/strong>
\nless. Some of the other cedars<\/strong>
\nin this area appear to have these characteristics. Is something different going on this year? I am concerned that there may be a disease that is affecting them?<\/strong><\/p>\n

 <\/p>\n

Is your tree a true cedar (Cedrus) or a species of Thuja? The Thuja plicata<\/em> (Western red cedar) in my garden also had a huge number of cones this year, and just like yours,
\nit has some foliage turning reddish brown. This is probably cedar
\nflagging, as described in this Washington State University Extension
\npage.<\/a> Flagging–the browning of older leaves and twigs–is a common occurrence
\non western red-cedar and related trees, such as arborvitae. It usually
\ndevelops in late summer to early fall. Often, very hot, dry weather,
\nfollowed by rain, will stimulate the sudden dropping of this older
\nfoliage.<\/em><\/p>\n

If the browning were to be widespread, that might be more of a cause for
\nconcern. Additional links:<\/p>\n

Cedar Flagging<\/a> from University of British Columbia Botanical Garden’s online forum.<\/p>\n

Thuja plicata<\/a>, <\/span>Trees–Diseases and pests–Washington<\/a><\/div>\n","protected":false},"excerpt":{"rendered":"

I have noticed that my old cedar has a very large number of cones on it this year. Several areas of foliage have turned reddish brown. This has all appeared in the past month or less. Some of the other cedars in this area appear to have these characteristics. Is something different going on this year? I am concerned that there may be a disease that is affecting them?   Is your tree a true cedar (Cedrus) or a species…<\/p>\n

Continue reading Cedar flagging<\/span><\/a><\/div>\n","protected":false},"author":4,"featured_media":0,"menu_order":0,"template":"","keyword":[456,439],"class_list":["post-2758","pal","type-pal","status-publish","hentry","keyword-thuja-plicata","keyword-trees-diseases-and-pests-washington"],"acf":[],"_links":{"self":[{"href":"https:\/\/depts.washington.edu\/hortlib\/wp-json\/wp\/v2\/pal\/2758"}],"collection":[{"href":"https:\/\/depts.washington.edu\/hortlib\/wp-json\/wp\/v2\/pal"}],"about":[{"href":"https:\/\/depts.washington.edu\/hortlib\/wp-json\/wp\/v2\/types\/pal"}],"author":[{"embeddable":true,"href":"https:\/\/depts.washington.edu\/hortlib\/wp-json\/wp\/v2\/users\/4"}],"wp:attachment":[{"href":"https:\/\/depts.washington.edu\/hortlib\/wp-json\/wp\/v2\/media?parent=2758"}],"wp:term":[{"taxonomy":"keyword","embeddable":true,"href":"https:\/\/depts.washington.edu\/hortlib\/wp-json\/wp\/v2\/keyword?post=2758"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}