{"id":2931,"date":"2019-06-06T00:07:39","date_gmt":"2019-06-06T07:07:39","guid":{"rendered":"https:\/\/depts.washington.edu\/hortlib\/pal\/pal-question-272\/"},"modified":"2023-08-04T13:55:20","modified_gmt":"2023-08-04T20:55:20","slug":"common-ailments-affecting-rhododendrons","status":"publish","type":"pal","link":"https:\/\/depts.washington.edu\/hortlib\/pal\/common-ailments-affecting-rhododendrons\/","title":{"rendered":"common ailments affecting rhododendrons"},"content":{"rendered":"<p><strong>My rhodies have black spot, rust. Is there a plant medicine I can put in the soil so it will get absorbed by the entire plant rather than spraying every other leaf.<\/strong><\/p>\n<p>&nbsp;<\/p>\n<p>I am sorry to hear about your sick Rhododendrons. You should take a take a leaf sample into a Master Gardener clinic for (free) diagnosis. I have linked a list of clinics in Snohomish County below. Their volunteers are trained in identifying plant diseases and suggesting solutions.<\/p>\n<p>If you cannot get into a clinic try the <a href=\"http:\/\/hortsense.cahnrs.wsu.edu\/Search\/MainMenuWithFactSheet.aspx?CategoryId=1&amp;SubCatId=4&amp;PlantDefId=32\">HortSense webpage<\/a> from Washington State University Cooperative Extension, and search the common ailments affecting rhododendrons (in the Ornamental Shrubs section).<\/p>\n<p>The reason why it is vital to get an accurate diagnosis is because some fungal diseases do not have treatments that really work, such as rust, while other &#8220;leaf spot problems&#8221; are not caused by fungus at all, therefore spraying with fungicides or applying a systemic to the soil would only be a waste of time and money!<\/p>\n<p>Try contacting the <a href=\"http:\/\/ext100.wsu.edu\/snohomish\/garden\/master-gardener-program\/\">Snohomish County Master Gardener Clinics<\/a> to see if you can bring in samples.<\/p>\n","protected":false},"excerpt":{"rendered":"<p>My rhodies have black spot, rust. Is there a plant medicine I can put in the soil so it will get absorbed by the entire plant rather than spraying every other leaf. &nbsp; I am sorry to hear about your sick Rhododendrons. You should take a take a leaf sample into a Master Gardener clinic for (free) diagnosis. I have linked a list of clinics in Snohomish County below. Their volunteers are trained in identifying plant diseases and suggesting solutions&#8230;.<\/p>\n<div><a class=\"more-link\" href=\"https:\/\/depts.washington.edu\/hortlib\/pal\/common-ailments-affecting-rhododendrons\/\">Continue reading <span class=\"screen-reader-text\">common ailments affecting rhododendrons<\/span><\/a><\/div>\n","protected":false},"author":4,"featured_media":0,"menu_order":0,"template":"","keyword":[466,36,475],"class_list":["post-2931","pal","type-pal","status-publish","hentry","keyword-master-gardeners","keyword-rhododendron","keyword-rhododendrons-diseases-and-pests"],"acf":[],"_links":{"self":[{"href":"https:\/\/depts.washington.edu\/hortlib\/wp-json\/wp\/v2\/pal\/2931"}],"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=2931"}],"wp:term":[{"taxonomy":"keyword","embeddable":true,"href":"https:\/\/depts.washington.edu\/hortlib\/wp-json\/wp\/v2\/keyword?post=2931"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}