{"id":2408,"date":"2012-01-10T12:00:20","date_gmt":"2012-01-10T17:00:20","guid":{"rendered":"http:\/\/www.whatgrowsthere.com\/grow\/?p=2408"},"modified":"2012-01-01T17:23:15","modified_gmt":"2012-01-01T22:23:15","slug":"what-can-be-done-about-phytophthora","status":"publish","type":"post","link":"https:\/\/whatgrowsthere.com\/grow\/2012\/01\/10\/what-can-be-done-about-phytophthora\/","title":{"rendered":"What Can Be Done About Phytophthora"},"content":{"rendered":"<p><em><a href=\"https:\/\/whatgrowsthere.com\/grow\/wp-content\/uploads\/2012\/01\/IMG_52821.jpg\"><img decoding=\"async\" loading=\"lazy\" class=\"aligncenter size-medium wp-image-2604\" title=\"IMG_5282\" src=\"https:\/\/whatgrowsthere.com\/grow\/wp-content\/uploads\/2012\/01\/IMG_52821-300x225.jpg\" alt=\"\" width=\"300\" height=\"225\" srcset=\"https:\/\/whatgrowsthere.com\/grow\/wp-content\/uploads\/2012\/01\/IMG_52821-300x225.jpg 300w, https:\/\/whatgrowsthere.com\/grow\/wp-content\/uploads\/2012\/01\/IMG_52821-1024x768.jpg 1024w\" sizes=\"(max-width: 300px) 100vw, 300px\" \/><\/a><\/em><\/p>\n<p><em>Phytophthora<\/em> disease (<em>Phytophthora<\/em> <em>spp.<\/em>) is the fatal cause of root rots, stem cankers and crown rots. Several hundred species of plants are susceptible, including redbuds, dogwoods, rhododendrons, camellias, white pines, firs, yews (<em>Taxus spp<\/em>.), and fruit trees.\u00a0It thrives in warm\u00a0moist saturated soils. <em>Phytophthora<\/em> may lie dormant in the soil for several years, waiting for a susceptible host plant and\u00a0ideal environmental conditions.<\/p>\n<p>Some common symptoms include yellow-green foliage, wilting, dead branches, and whole plant death. Infected leaves typically turn various shades of brown, die,\u00a0and remain on the branches for several months.<\/p>\n<p>Your best\u00a0approach is to avoid the disease completely. Purchase only healthy trees and shrubs. Inspect the root ball for size dimension (compare to the top) and look for visible damage. Leave sick plants at the garden center.<\/p>\n<p>Avoid plant stress by selecting\u00a0the proper planting site. For example, most needle evergreens\u00a0grow best in\u00a0full sun, while broadleaf rhododendrons prefer partial sun. All demand a well-drained soil, preferably situated on a slight grade or slope.\u00a0Do not plant in\u00a0heavy clay or compacted poorly drained ground.<\/p>\n<p>Prior to planting, remove all nylon and plastic burlap and twine around the root ball. Jute or cotton burlap and rope may be left around the rootball. Set most shrubs and trees at the same depth (as at the nursery). Fertilize plants in late winter at the proper amounts; overfeeding may worsen <em>Phytophthora<\/em> root\u00a0rot\u00a0infections. Water the plant(s) on site within three days after planting. Apply 2-3 inches of an organic mulch around the tree and do not pile mulch up around the trunk.<\/p>\n<p>Once <em>Phytophthora<\/em> has been diagnosed, apply treatments of Subdue MAXX\u2122 or Aliette\u2122 fungicides in the spring and fall to prevent\u00a0further disease spread. Fungicide treatments are quite expensive and removal of the sickly plant may be your best option.<\/p>\n","protected":false},"excerpt":{"rendered":"<p>Phytophthora disease (Phytophthora spp.) is the fatal cause of root rots, stem cankers and crown rots. Several hundred species of plants are susceptible, including redbuds, dogwoods, rhododendrons, camellias, white pines, firs, yews (Taxus spp.), and fruit trees.\u00a0It thrives in warm\u00a0moist saturated soils. Phytophthora may lie dormant in the soil for several years, waiting for a [&hellip;]<\/p>\n","protected":false},"author":2,"featured_media":0,"comment_status":"open","ping_status":"open","sticky":false,"template":"","format":"standard","meta":[],"categories":[711,709,11,650,674,844,800,665,551,597,808,202,843,703,712,159,630,7,1,113],"tags":[],"_links":{"self":[{"href":"https:\/\/whatgrowsthere.com\/grow\/wp-json\/wp\/v2\/posts\/2408"}],"collection":[{"href":"https:\/\/whatgrowsthere.com\/grow\/wp-json\/wp\/v2\/posts"}],"about":[{"href":"https:\/\/whatgrowsthere.com\/grow\/wp-json\/wp\/v2\/types\/post"}],"author":[{"embeddable":true,"href":"https:\/\/whatgrowsthere.com\/grow\/wp-json\/wp\/v2\/users\/2"}],"replies":[{"embeddable":true,"href":"https:\/\/whatgrowsthere.com\/grow\/wp-json\/wp\/v2\/comments?post=2408"}],"version-history":[{"count":12,"href":"https:\/\/whatgrowsthere.com\/grow\/wp-json\/wp\/v2\/posts\/2408\/revisions"}],"predecessor-version":[{"id":2598,"href":"https:\/\/whatgrowsthere.com\/grow\/wp-json\/wp\/v2\/posts\/2408\/revisions\/2598"}],"wp:attachment":[{"href":"https:\/\/whatgrowsthere.com\/grow\/wp-json\/wp\/v2\/media?parent=2408"}],"wp:term":[{"taxonomy":"category","embeddable":true,"href":"https:\/\/whatgrowsthere.com\/grow\/wp-json\/wp\/v2\/categories?post=2408"},{"taxonomy":"post_tag","embeddable":true,"href":"https:\/\/whatgrowsthere.com\/grow\/wp-json\/wp\/v2\/tags?post=2408"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}