{"id":47002,"date":"2022-08-05T12:26:05","date_gmt":"2022-08-05T12:26:05","guid":{"rendered":"https:\/\/dev.metos.global\/?page_id=47002"},"modified":"2023-06-21T08:02:58","modified_gmt":"2023-06-21T08:02:58","slug":"disease-models-citrus","status":"publish","type":"page","link":"https:\/\/metos.global\/en\/disease-models-citrus\/","title":{"rendered":"Disease models &#8211; citrus"},"content":{"rendered":"\t\t<div data-elementor-type=\"wp-page\" data-elementor-id=\"47002\" class=\"elementor elementor-47002\" data-elementor-post-type=\"page\">\n\t\t\t\t\t\t<section class=\"elementor-section elementor-top-section elementor-element elementor-element-bba804d elementor-section-full_width elementor-section-height-default elementor-section-height-default\" data-id=\"bba804d\" data-element_type=\"section\" data-e-type=\"section\">\n\t\t\t\t\t\t<div class=\"elementor-container elementor-column-gap-no\">\n\t\t\t\t\t<div class=\"elementor-column elementor-col-100 elementor-top-column elementor-element elementor-element-7939599\" data-id=\"7939599\" data-element_type=\"column\" data-e-type=\"column\">\n\t\t\t<div class=\"elementor-widget-wrap elementor-element-populated\">\n\t\t\t\t\t\t<div class=\"elementor-element elementor-element-0f28039 elementor-widget elementor-widget-image\" data-id=\"0f28039\" data-element_type=\"widget\" data-e-type=\"widget\" data-widget_type=\"image.default\">\n\t\t\t\t<div class=\"elementor-widget-container\">\n\t\t\t\t\t\t\t\t\t\t\t\t\t\t\t<img fetchpriority=\"high\" decoding=\"async\" width=\"1920\" height=\"350\" src=\"https:\/\/metos.global\/wp-content\/uploads\/2022\/08\/Citrus.jpg\" class=\"attachment-full size-full wp-image-47004\" alt=\"\" srcset=\"https:\/\/metos.global\/wp-content\/uploads\/2022\/08\/Citrus.jpg 1920w, https:\/\/metos.global\/wp-content\/uploads\/2022\/08\/Citrus-300x55.jpg 300w, https:\/\/metos.global\/wp-content\/uploads\/2022\/08\/Citrus-1024x187.jpg 1024w, https:\/\/metos.global\/wp-content\/uploads\/2022\/08\/Citrus-768x140.jpg 768w, https:\/\/metos.global\/wp-content\/uploads\/2022\/08\/Citrus-1536x280.jpg 1536w\" sizes=\"(max-width: 1920px) 100vw, 1920px\" \/>\t\t\t\t\t\t\t\t\t\t\t\t\t\t\t<\/div>\n\t\t\t\t<\/div>\n\t\t\t\t\t<\/div>\n\t\t<\/div>\n\t\t\t\t\t<\/div>\n\t\t<\/section>\n\t\t\t\t<section class=\"elementor-section elementor-top-section elementor-element elementor-element-b2188fd elementor-section-boxed elementor-section-height-default elementor-section-height-default\" data-id=\"b2188fd\" data-element_type=\"section\" data-e-type=\"section\">\n\t\t\t\t\t\t<div class=\"elementor-container elementor-column-gap-default\">\n\t\t\t\t\t<div class=\"elementor-column elementor-col-100 elementor-top-column elementor-element elementor-element-7979a52\" data-id=\"7979a52\" data-element_type=\"column\" data-e-type=\"column\">\n\t\t\t<div class=\"elementor-widget-wrap elementor-element-populated\">\n\t\t\t\t\t\t<div class=\"elementor-element elementor-element-47a5554 elementor-widget elementor-widget-heading\" data-id=\"47a5554\" data-element_type=\"widget\" data-e-type=\"widget\" data-widget_type=\"heading.default\">\n\t\t\t\t<div class=\"elementor-widget-container\">\n\t\t\t\t\t<h2 class=\"elementor-heading-title elementor-size-default\"><b>Citrus<\/b> disease models\n<\/h2>\t\t\t\t<\/div>\n\t\t\t\t<\/div>\n\t\t\t\t<div class=\"elementor-element elementor-element-9dea2bf elementor-widget elementor-widget-spacer\" data-id=\"9dea2bf\" data-element_type=\"widget\" data-e-type=\"widget\" data-widget_type=\"spacer.default\">\n\t\t\t\t<div class=\"elementor-widget-container\">\n\t\t\t\t\t\t\t<div class=\"elementor-spacer\">\n\t\t\t<div class=\"elementor-spacer-inner\"><\/div>\n\t\t<\/div>\n\t\t\t\t\t\t<\/div>\n\t\t\t\t<\/div>\n\t\t\t\t<div class=\"elementor-element elementor-element-2b056b2 elementor-widget elementor-widget-text-editor\" data-id=\"2b056b2\" data-element_type=\"widget\" data-e-type=\"widget\" data-widget_type=\"text-editor.default\">\n\t\t\t\t<div class=\"elementor-widget-container\">\n\t\t\t\t\t\t\t\t\t<p>On <span style=\"text-decoration: underline;\"><a href=\"http:\/\/fieldclimate.com\">FieldClimate<\/a><\/span> we offer models for two Citrus diseases.\u00a0<strong>Alternaria brown spot<\/strong>, caused by the fungus\u00a0<em>Alternaria alternata<\/em>, affects a wide range of orange and mandarin varieties specially Murcott tangors. Where severe, the disease results in extensive fruit drop and must be controlled on processing and fresh market fruit.\u00a0<strong>Postbloom fruit drop<\/strong>\u00a0(PFD) is caused by the fungus\u00a0<em>Colletotrichum acutatum<\/em>. It affects all species and cultivars of citrus. It must be controlled on processing and fresh market fruit. Navel and Valencia oranges do experienced the most severe damages.<\/p>\t\t\t\t\t\t\t\t<\/div>\n\t\t\t\t<\/div>\n\t\t\t\t\t<\/div>\n\t\t<\/div>\n\t\t\t\t\t<\/div>\n\t\t<\/section>\n\t\t\t\t<section class=\"elementor-section elementor-top-section elementor-element elementor-element-a1d4b03 elementor-section-boxed elementor-section-height-default elementor-section-height-default\" data-id=\"a1d4b03\" data-element_type=\"section\" data-e-type=\"section\">\n\t\t\t\t\t\t<div class=\"elementor-container elementor-column-gap-default\">\n\t\t\t\t\t<div class=\"elementor-column elementor-col-33 elementor-top-column elementor-element elementor-element-4bfb4bf\" data-id=\"4bfb4bf\" data-element_type=\"column\" data-e-type=\"column\" data-settings=\"{&quot;background_background&quot;:&quot;classic&quot;}\">\n\t\t\t<div class=\"elementor-widget-wrap elementor-element-populated\">\n\t\t\t\t\t\t<div class=\"elementor-element elementor-element-02c379d elementor-widget elementor-widget-heading\" data-id=\"02c379d\" data-element_type=\"widget\" data-e-type=\"widget\" data-widget_type=\"heading.default\">\n\t\t\t\t<div class=\"elementor-widget-container\">\n\t\t\t\t\t<h2 class=\"elementor-heading-title elementor-size-default\"><a href=\"#brown-spot\">ALTERNARIA BROWN SPOT\u2013<\/br><em>Alternaria alternata<\/em><\/a><\/h2>\t\t\t\t<\/div>\n\t\t\t\t<\/div>\n\t\t\t\t\t<\/div>\n\t\t<\/div>\n\t\t\t\t<div class=\"elementor-column elementor-col-33 elementor-top-column elementor-element elementor-element-fb116ba\" data-id=\"fb116ba\" data-element_type=\"column\" data-e-type=\"column\" data-settings=\"{&quot;background_background&quot;:&quot;classic&quot;}\">\n\t\t\t<div class=\"elementor-widget-wrap elementor-element-populated\">\n\t\t\t\t\t\t<div class=\"elementor-element elementor-element-3749fdb elementor-widget elementor-widget-heading\" data-id=\"3749fdb\" data-element_type=\"widget\" data-e-type=\"widget\" data-widget_type=\"heading.default\">\n\t\t\t\t<div class=\"elementor-widget-container\">\n\t\t\t\t\t<h2 class=\"elementor-heading-title elementor-size-default\"><a href=\"#pfd\">PFD POST BLOOM FRUIT DROP \u2013<\/br><em>Colletotrichum acutatum<\/em><\/a><\/h2>\t\t\t\t<\/div>\n\t\t\t\t<\/div>\n\t\t\t\t\t<\/div>\n\t\t<\/div>\n\t\t\t\t<div class=\"elementor-column elementor-col-33 elementor-top-column elementor-element elementor-element-4df9cff\" data-id=\"4df9cff\" data-element_type=\"column\" data-e-type=\"column\" data-settings=\"{&quot;background_background&quot;:&quot;classic&quot;}\">\n\t\t\t<div class=\"elementor-widget-wrap\">\n\t\t\t\t\t\t\t<\/div>\n\t\t<\/div>\n\t\t\t\t\t<\/div>\n\t\t<\/section>\n\t\t\t\t<section class=\"elementor-section elementor-top-section elementor-element elementor-element-0b63825 elementor-section-boxed elementor-section-height-default elementor-section-height-default\" data-id=\"0b63825\" data-element_type=\"section\" data-e-type=\"section\" data-settings=\"{&quot;background_background&quot;:&quot;classic&quot;}\">\n\t\t\t\t\t\t<div class=\"elementor-container elementor-column-gap-default\">\n\t\t\t\t\t<div class=\"elementor-column elementor-col-100 elementor-top-column elementor-element elementor-element-f3a6b8a\" data-id=\"f3a6b8a\" data-element_type=\"column\" data-e-type=\"column\">\n\t\t\t<div class=\"elementor-widget-wrap elementor-element-populated\">\n\t\t\t\t\t\t<div class=\"elementor-element elementor-element-f92458b elementor-align-center elementor-widget elementor-widget-button\" data-id=\"f92458b\" data-element_type=\"widget\" data-e-type=\"widget\" data-widget_type=\"button.default\">\n\t\t\t\t<div class=\"elementor-widget-container\">\n\t\t\t\t\t\t\t\t\t<div class=\"elementor-button-wrapper\">\n\t\t\t\t\t<a class=\"elementor-button elementor-button-link elementor-size-md\" href=\"#recommended-equipment\">\n\t\t\t\t\t\t<span class=\"elementor-button-content-wrapper\">\n\t\t\t\t\t\t\t\t\t<span class=\"elementor-button-text\">Recommended equipment<\/span>\n\t\t\t\t\t<\/span>\n\t\t\t\t\t<\/a>\n\t\t\t\t<\/div>\n\t\t\t\t\t\t\t\t<\/div>\n\t\t\t\t<\/div>\n\t\t\t\t\t<\/div>\n\t\t<\/div>\n\t\t\t\t\t<\/div>\n\t\t<\/section>\n\t\t\t\t<section class=\"elementor-section elementor-top-section elementor-element elementor-element-5d20f7d elementor-section-boxed elementor-section-height-default elementor-section-height-default\" data-id=\"5d20f7d\" data-element_type=\"section\" data-e-type=\"section\">\n\t\t\t\t\t\t<div class=\"elementor-container elementor-column-gap-default\">\n\t\t\t\t\t<div class=\"elementor-column elementor-col-100 elementor-top-column elementor-element elementor-element-43255f3\" data-id=\"43255f3\" data-element_type=\"column\" data-e-type=\"column\">\n\t\t\t<div class=\"elementor-widget-wrap elementor-element-populated\">\n\t\t\t\t\t\t<div class=\"elementor-element elementor-element-35615a5 elementor-widget-divider--view-line elementor-widget elementor-widget-divider\" data-id=\"35615a5\" data-element_type=\"widget\" data-e-type=\"widget\" data-widget_type=\"divider.default\">\n\t\t\t\t<div class=\"elementor-widget-container\">\n\t\t\t\t\t\t\t<div class=\"elementor-divider\">\n\t\t\t<span class=\"elementor-divider-separator\">\n\t\t\t\t\t\t<\/span>\n\t\t<\/div>\n\t\t\t\t\t\t<\/div>\n\t\t\t\t<\/div>\n\t\t\t\t\t<\/div>\n\t\t<\/div>\n\t\t\t\t\t<\/div>\n\t\t<\/section>\n\t\t\t\t<section class=\"elementor-section elementor-top-section elementor-element elementor-element-c958cf6 elementor-section-boxed elementor-section-height-default elementor-section-height-default\" data-id=\"c958cf6\" data-element_type=\"section\" data-e-type=\"section\">\n\t\t\t\t\t\t<div class=\"elementor-container elementor-column-gap-default\">\n\t\t\t\t\t<div class=\"elementor-column elementor-col-100 elementor-top-column elementor-element elementor-element-beef7ba\" data-id=\"beef7ba\" data-element_type=\"column\" data-e-type=\"column\">\n\t\t\t<div class=\"elementor-widget-wrap elementor-element-populated\">\n\t\t\t\t\t\t<div class=\"elementor-element elementor-element-fe505f4 elementor-widget elementor-widget-menu-anchor\" data-id=\"fe505f4\" data-element_type=\"widget\" data-e-type=\"widget\" data-widget_type=\"menu-anchor.default\">\n\t\t\t\t<div class=\"elementor-widget-container\">\n\t\t\t\t\t\t\t<div class=\"elementor-menu-anchor\" id=\"brown-spot\"><\/div>\n\t\t\t\t\t\t<\/div>\n\t\t\t\t<\/div>\n\t\t\t\t<div class=\"elementor-element elementor-element-7d2a120 elementor-widget elementor-widget-heading\" data-id=\"7d2a120\" data-element_type=\"widget\" data-e-type=\"widget\" data-widget_type=\"heading.default\">\n\t\t\t\t<div class=\"elementor-widget-container\">\n\t\t\t\t\t<h2 class=\"elementor-heading-title elementor-size-default\">Alternaria brown spot<\/h2>\t\t\t\t<\/div>\n\t\t\t\t<\/div>\n\t\t\t\t<div class=\"elementor-element elementor-element-24b9e25 elementor-widget elementor-widget-spacer\" data-id=\"24b9e25\" data-element_type=\"widget\" data-e-type=\"widget\" data-widget_type=\"spacer.default\">\n\t\t\t\t<div class=\"elementor-widget-container\">\n\t\t\t\t\t\t\t<div class=\"elementor-spacer\">\n\t\t\t<div class=\"elementor-spacer-inner\"><\/div>\n\t\t<\/div>\n\t\t\t\t\t\t<\/div>\n\t\t\t\t<\/div>\n\t\t\t\t<div class=\"elementor-element elementor-element-c16d255 elementor-widget elementor-widget-text-editor\" data-id=\"c16d255\" data-element_type=\"widget\" data-e-type=\"widget\" data-widget_type=\"text-editor.default\">\n\t\t\t\t<div class=\"elementor-widget-container\">\n\t\t\t\t\t\t\t\t\t<p><strong>Alternaria brown spot<\/strong>, caused by the fungus\u00a0<em>Alternaria alternata<\/em>, affects a wide range of orange and mandarin varieties specially Murcott tangors. Where severe, the disease results in extensive fruit drop and must be controlled on processing and fresh market fruit. Spores of\u00a0<em>Alternaria<\/em>\u00a0are\u00a0<u>airborne<\/u>. Most spores are produced by lesions on the mature leaves on the tree or recently fallen infected leaves on the grove floor. The\u00a0<strong>ALTER-RATER<\/strong>\u00a0is a\u00a0<u>weather-based point system<\/u>\u00a0to assist in the timing of fungicide applications. The system was developed based primarily on the amount of infection which occurred on susceptible trap plants placed in a heavily infested Minneola tangelo grove for 24-hour periods and supplemented with data from lab studies.<\/p><p><strong>Factors Affecting the Disease Occurrence:<\/strong><\/p><ul><li><strong>Rainfall<\/strong>, but not the amount of rain<\/li><li>Days with\u00a0<strong>leaf wetness durations<\/strong>\u00a0of more than\u00a0<strong>10 hours<\/strong>\u00a0had more disease than days with fewer numbers of hours.<\/li><li><em>Alternaria<\/em>\u00a0infection was high over a wide range of\u00a0<strong>temperatures<\/strong>\u00a0but did diminish if the average daily temperature was above 28 or below 21\u00b0C.<\/li><\/ul><p>The practical Use of AlterRater: The AlterRater Values for every day are accumulated over 5, 7, 10 and 14 days and this results are displayed in FieldClimate.Com. Florida University Extensions service suggests 3 thresholds for spray application:<\/p><ul><li>50 for heavily infested Orchards<\/li><li>100 for moderate infested Orchards<\/li><li>150 for weak infested Orchards<\/li><\/ul>\t\t\t\t\t\t\t\t<\/div>\n\t\t\t\t<\/div>\n\t\t\t\t\t<\/div>\n\t\t<\/div>\n\t\t\t\t\t<\/div>\n\t\t<\/section>\n\t\t\t\t<section class=\"elementor-section elementor-top-section elementor-element elementor-element-683ba3d elementor-section-boxed elementor-section-height-default elementor-section-height-default\" data-id=\"683ba3d\" data-element_type=\"section\" data-e-type=\"section\">\n\t\t\t\t\t\t<div class=\"elementor-container elementor-column-gap-default\">\n\t\t\t\t\t<div class=\"elementor-column elementor-col-100 elementor-top-column elementor-element elementor-element-1b2a0a8\" data-id=\"1b2a0a8\" data-element_type=\"column\" data-e-type=\"column\">\n\t\t\t<div class=\"elementor-widget-wrap elementor-element-populated\">\n\t\t\t\t\t\t<div class=\"elementor-element elementor-element-6f4f823 elementor-widget-divider--view-line elementor-widget elementor-widget-divider\" data-id=\"6f4f823\" data-element_type=\"widget\" data-e-type=\"widget\" data-widget_type=\"divider.default\">\n\t\t\t\t<div class=\"elementor-widget-container\">\n\t\t\t\t\t\t\t<div class=\"elementor-divider\">\n\t\t\t<span class=\"elementor-divider-separator\">\n\t\t\t\t\t\t<\/span>\n\t\t<\/div>\n\t\t\t\t\t\t<\/div>\n\t\t\t\t<\/div>\n\t\t\t\t\t<\/div>\n\t\t<\/div>\n\t\t\t\t\t<\/div>\n\t\t<\/section>\n\t\t\t\t<section class=\"elementor-section elementor-top-section elementor-element elementor-element-8665dd5 elementor-section-boxed elementor-section-height-default elementor-section-height-default\" data-id=\"8665dd5\" data-element_type=\"section\" data-e-type=\"section\">\n\t\t\t\t\t\t<div class=\"elementor-container elementor-column-gap-default\">\n\t\t\t\t\t<div class=\"elementor-column elementor-col-100 elementor-top-column elementor-element elementor-element-31b9654\" data-id=\"31b9654\" data-element_type=\"column\" data-e-type=\"column\">\n\t\t\t<div class=\"elementor-widget-wrap elementor-element-populated\">\n\t\t\t\t\t\t<div class=\"elementor-element elementor-element-9943085 elementor-widget elementor-widget-menu-anchor\" data-id=\"9943085\" data-element_type=\"widget\" data-e-type=\"widget\" data-widget_type=\"menu-anchor.default\">\n\t\t\t\t<div class=\"elementor-widget-container\">\n\t\t\t\t\t\t\t<div class=\"elementor-menu-anchor\" id=\"pfd\"><\/div>\n\t\t\t\t\t\t<\/div>\n\t\t\t\t<\/div>\n\t\t\t\t<div class=\"elementor-element elementor-element-12bc497 elementor-widget elementor-widget-heading\" data-id=\"12bc497\" data-element_type=\"widget\" data-e-type=\"widget\" data-widget_type=\"heading.default\">\n\t\t\t\t<div class=\"elementor-widget-container\">\n\t\t\t\t\t<h2 class=\"elementor-heading-title elementor-size-default\">PFD - Post Fruit Drop<\/h2>\t\t\t\t<\/div>\n\t\t\t\t<\/div>\n\t\t\t\t<div class=\"elementor-element elementor-element-ede7a2c elementor-widget elementor-widget-spacer\" data-id=\"ede7a2c\" data-element_type=\"widget\" data-e-type=\"widget\" data-widget_type=\"spacer.default\">\n\t\t\t\t<div class=\"elementor-widget-container\">\n\t\t\t\t\t\t\t<div class=\"elementor-spacer\">\n\t\t\t<div class=\"elementor-spacer-inner\"><\/div>\n\t\t<\/div>\n\t\t\t\t\t\t<\/div>\n\t\t\t\t<\/div>\n\t\t\t\t<div class=\"elementor-element elementor-element-fdf8052 elementor-widget elementor-widget-text-editor\" data-id=\"fdf8052\" data-element_type=\"widget\" data-e-type=\"widget\" data-widget_type=\"text-editor.default\">\n\t\t\t\t<div class=\"elementor-widget-container\">\n\t\t\t\t\t\t\t\t\t<p>Post bloom fruit drop (PFD) is caused by the fungus\u00a0<em>Colletotrichum acutatum<\/em>. It affects all species and cultivars of citrus. It must be controlled on processing and fresh market fruit. Navel and Valencia oranges do experience the most severe damages.<\/p><p>The pathogen infects flower petals causing peach to orange-colored lesions on open flowers and flower buds. Subsequently, the fruitlet abscises leaving the calyx and floral disk attached to the twig. These persistent structures remain attached for the life of the twig, and the leaves around inflorescences are usually twisted and distorted.<\/p><p><strong>Sensors: leaf wetness, precipitation<\/strong><\/p><p><strong>The PFD Model in FieldClimate.com shows disease incidence with a max. the threshold for infected flowers on 20 trees. A fungicide application is indicated if these three criteria are met:<\/strong><\/p><ul><li>Sufficient bloom is present or developing to represent a significant portion of the total crop;<\/li><li>the model predicts a disease incidence of greater than 20%- shown as max. threshold for 20 trees (red line in fieldclimate.com\u2019) and minimum inoculum for infection (blue line)<\/li><li>No fungicide application has been made in the last 10-14 days<\/li><\/ul><p><strong>The PFD Model has been developed to assist growers in determining the need and timing of fungicide applications (Equation 1). The model is based on:<\/strong><\/p><ul><li>The amount of fungal inoculum present (i.e., the number of diseased flowers on a 20-tree sample TD in the model, \u201cminimum inoculum\u201d);<\/li><li>The total rainfall for the last 5 days in mm (R)<\/li><li>The number of hours of leaf wetness greater than 10 hours for the last 5 days.<\/li><\/ul><p>The model predicts the threshold for infected flowers for 4 days in the future. If the number of infected flowers on 20 threes is higher than the given threshold (red line) an application is recommended.<\/p><p><a href=\"https:\/\/metos.global\/wp-content\/uploads\/2023\/01\/Citrus-Post-Bloom-Fruit-Drop.png\"><img decoding=\"async\" class=\"aligncenter wp-image-50897 lazyload\" data-src=\"https:\/\/www.metos.global\/wp-content\/uploads\/2023\/01\/Citrus-Post-Bloom-Fruit-Drop.png\" alt=\"Citrus Post Bloom Fruit Drop\" width=\"700\" height=\"232\" data-srcset=\"https:\/\/metos.global\/wp-content\/uploads\/2023\/01\/Citrus-Post-Bloom-Fruit-Drop.png 1358w, https:\/\/metos.global\/wp-content\/uploads\/2023\/01\/Citrus-Post-Bloom-Fruit-Drop-300x100.png 300w, https:\/\/metos.global\/wp-content\/uploads\/2023\/01\/Citrus-Post-Bloom-Fruit-Drop-1024x340.png 1024w, https:\/\/metos.global\/wp-content\/uploads\/2023\/01\/Citrus-Post-Bloom-Fruit-Drop-768x255.png 768w, https:\/\/metos.global\/wp-content\/uploads\/2023\/01\/Citrus-Post-Bloom-Fruit-Drop-18x6.png 18w\" data-sizes=\"(max-width: 700px) 100vw, 700px\" src=\"data:image\/svg+xml;base64,PHN2ZyB3aWR0aD0iMSIgaGVpZ2h0PSIxIiB4bWxucz0iaHR0cDovL3d3dy53My5vcmcvMjAwMC9zdmciPjwvc3ZnPg==\" style=\"--smush-placeholder-width: 700px; --smush-placeholder-aspect-ratio: 700\/232;\" \/><\/a><\/p><p><span style=\"text-decoration: underline;\"><a href=\"\/wp-content\/uploads\/2023\/01\/Citrus-Post-Bloom-Fruit-Drop.png\"><em><strong>Graph:<\/strong><\/em><\/a><\/span> Inoculum of the fungus is low, therefore the threshold for infected flowers on 20 trees increases from 10 to 150 flowers\/20trees on the 20th of February. Because of the rainy period from 16 to the 120th of February, the threshold decreased again to about 10 infected flowers\/20 trees. This threshold (if the number of infected flowers is higher than the threshold) should support the farmer to decide on an application against the disease.<\/p>\t\t\t\t\t\t\t\t<\/div>\n\t\t\t\t<\/div>\n\t\t\t\t\t<\/div>\n\t\t<\/div>\n\t\t\t\t\t<\/div>\n\t\t<\/section>\n\t\t\t\t<section class=\"elementor-section elementor-top-section elementor-element elementor-element-30a41ba elementor-section-boxed elementor-section-height-default elementor-section-height-default\" data-id=\"30a41ba\" data-element_type=\"section\" data-e-type=\"section\" data-settings=\"{&quot;background_background&quot;:&quot;classic&quot;}\">\n\t\t\t\t\t\t<div class=\"elementor-container elementor-column-gap-default\">\n\t\t\t\t\t<div class=\"elementor-column elementor-col-100 elementor-top-column elementor-element elementor-element-562082c\" data-id=\"562082c\" data-element_type=\"column\" data-e-type=\"column\">\n\t\t\t<div class=\"elementor-widget-wrap elementor-element-populated\">\n\t\t\t\t\t\t<div class=\"elementor-element elementor-element-241204a elementor-widget elementor-widget-menu-anchor\" data-id=\"241204a\" data-element_type=\"widget\" data-e-type=\"widget\" data-widget_type=\"menu-anchor.default\">\n\t\t\t\t<div class=\"elementor-widget-container\">\n\t\t\t\t\t\t\t<div class=\"elementor-menu-anchor\" id=\"recommended-equipment\"><\/div>\n\t\t\t\t\t\t<\/div>\n\t\t\t\t<\/div>\n\t\t\t\t<div class=\"elementor-element elementor-element-8aa1dfd elementor-widget elementor-widget-heading\" data-id=\"8aa1dfd\" data-element_type=\"widget\" data-e-type=\"widget\" data-widget_type=\"heading.default\">\n\t\t\t\t<div class=\"elementor-widget-container\">\n\t\t\t\t\t<h2 class=\"elementor-heading-title elementor-size-default\">Recommended equipment<\/h2>\t\t\t\t<\/div>\n\t\t\t\t<\/div>\n\t\t\t\t\t<\/div>\n\t\t<\/div>\n\t\t\t\t\t<\/div>\n\t\t<\/section>\n\t\t\t\t<section class=\"elementor-section elementor-top-section elementor-element elementor-element-ac85886 elementor-section-content-middle elementor-section-boxed elementor-section-height-default elementor-section-height-default\" data-id=\"ac85886\" data-element_type=\"section\" data-e-type=\"section\" data-settings=\"{&quot;background_background&quot;:&quot;classic&quot;}\">\n\t\t\t\t\t\t<div class=\"elementor-container elementor-column-gap-default\">\n\t\t\t\t\t<div class=\"elementor-column elementor-col-66 elementor-top-column elementor-element elementor-element-be427fc\" data-id=\"be427fc\" data-element_type=\"column\" data-e-type=\"column\">\n\t\t\t<div class=\"elementor-widget-wrap elementor-element-populated\">\n\t\t\t\t\t\t<div class=\"elementor-element elementor-element-86a8712 elementor-widget elementor-widget-text-editor\" data-id=\"86a8712\" data-element_type=\"widget\" data-e-type=\"widget\" data-widget_type=\"text-editor.default\">\n\t\t\t\t<div class=\"elementor-widget-container\">\n\t\t\t\t\t\t\t\t\t<p><b><i>Check which sensor set is needed for monitoring this crop&#8217;s potential diseases.<\/i><\/b><\/p>\t\t\t\t\t\t\t\t<\/div>\n\t\t\t\t<\/div>\n\t\t\t\t\t<\/div>\n\t\t<\/div>\n\t\t\t\t<div class=\"elementor-column elementor-col-33 elementor-top-column elementor-element elementor-element-5d8e509\" data-id=\"5d8e509\" data-element_type=\"column\" data-e-type=\"column\">\n\t\t\t<div class=\"elementor-widget-wrap elementor-element-populated\">\n\t\t\t\t\t\t<div class=\"elementor-element elementor-element-feace53 elementor-align-left elementor-widget elementor-widget-button\" data-id=\"feace53\" data-element_type=\"widget\" data-e-type=\"widget\" data-widget_type=\"button.default\">\n\t\t\t\t<div class=\"elementor-widget-container\">\n\t\t\t\t\t\t\t\t\t<div class=\"elementor-button-wrapper\">\n\t\t\t\t\t<a class=\"elementor-button elementor-button-link elementor-size-md\" href=\"\/wp-content\/uploads\/2022\/07\/Crop-solutions-document_2022.pdf\">\n\t\t\t\t\t\t<span class=\"elementor-button-content-wrapper\">\n\t\t\t\t\t\t\t\t\t<span class=\"elementor-button-text\">DOWNLOAD SPREADSHEET<\/span>\n\t\t\t\t\t<\/span>\n\t\t\t\t\t<\/a>\n\t\t\t\t<\/div>\n\t\t\t\t\t\t\t\t<\/div>\n\t\t\t\t<\/div>\n\t\t\t\t\t<\/div>\n\t\t<\/div>\n\t\t\t\t\t<\/div>\n\t\t<\/section>\n\t\t\t\t<\/div>\n\t\t","protected":false},"excerpt":{"rendered":"<p>Citrus disease models On FieldClimate we offer models for two Citrus diseases.\u00a0Alternaria brown spot, caused by the fungus\u00a0Alternaria alternata, affects a wide range of orange and mandarin varieties specially Murcott tangors. Where severe, the disease results in extensive fruit drop and must be controlled on processing and fresh market fruit.\u00a0Postbloom fruit drop\u00a0(PFD) is caused by [&hellip;]<\/p>\n","protected":false},"author":2,"featured_media":0,"parent":0,"menu_order":0,"comment_status":"closed","ping_status":"closed","template":"elementor_header_footer","meta":{"ocean_post_layout":"","ocean_both_sidebars_style":"","ocean_both_sidebars_content_width":0,"ocean_both_sidebars_sidebars_width":0,"ocean_sidebar":"0","ocean_second_sidebar":"0","ocean_disable_margins":"enable","ocean_add_body_class":"","ocean_shortcode_before_top_bar":"","ocean_shortcode_after_top_bar":"","ocean_shortcode_before_header":"","ocean_shortcode_after_header":"","ocean_has_shortcode":"","ocean_shortcode_after_title":"","ocean_shortcode_before_footer_widgets":"","ocean_shortcode_after_footer_widgets":"","ocean_shortcode_before_footer_bottom":"","ocean_shortcode_after_footer_bottom":"","ocean_display_top_bar":"default","ocean_display_header":"default","ocean_header_style":"","ocean_center_header_left_menu":"0","ocean_custom_header_template":"0","ocean_custom_logo":0,"ocean_custom_retina_logo":0,"ocean_custom_logo_max_width":0,"ocean_custom_logo_tablet_max_width":0,"ocean_custom_logo_mobile_max_width":0,"ocean_custom_logo_max_height":0,"ocean_custom_logo_tablet_max_height":0,"ocean_custom_logo_mobile_max_height":0,"ocean_header_custom_menu":"0","ocean_menu_typo_font_family":"0","ocean_menu_typo_font_subset":"","ocean_menu_typo_font_size":0,"ocean_menu_typo_font_size_tablet":0,"ocean_menu_typo_font_size_mobile":0,"ocean_menu_typo_font_size_unit":"px","ocean_menu_typo_font_weight":"","ocean_menu_typo_font_weight_tablet":"","ocean_menu_typo_font_weight_mobile":"","ocean_menu_typo_transform":"","ocean_menu_typo_transform_tablet":"","ocean_menu_typo_transform_mobile":"","ocean_menu_typo_line_height":0,"ocean_menu_typo_line_height_tablet":0,"ocean_menu_typo_line_height_mobile":0,"ocean_menu_typo_line_height_unit":"","ocean_menu_typo_spacing":0,"ocean_menu_typo_spacing_tablet":0,"ocean_menu_typo_spacing_mobile":0,"ocean_menu_typo_spacing_unit":"","ocean_menu_link_color":"","ocean_menu_link_color_hover":"","ocean_menu_link_color_active":"","ocean_menu_link_background":"","ocean_menu_link_hover_background":"","ocean_menu_link_active_background":"","ocean_menu_social_links_bg":"","ocean_menu_social_hover_links_bg":"","ocean_menu_social_links_color":"","ocean_menu_social_hover_links_color":"","ocean_disable_title":"on","ocean_disable_heading":"default","ocean_post_title":"","ocean_post_subheading":"","ocean_post_title_style":"","ocean_post_title_background_color":"","ocean_post_title_background":0,"ocean_post_title_bg_image_position":"","ocean_post_title_bg_image_attachment":"","ocean_post_title_bg_image_repeat":"","ocean_post_title_bg_image_size":"","ocean_post_title_height":0,"ocean_post_title_bg_overlay":0.5,"ocean_post_title_bg_overlay_color":"","ocean_disable_breadcrumbs":"default","ocean_breadcrumbs_color":"","ocean_breadcrumbs_separator_color":"","ocean_breadcrumbs_links_color":"","ocean_breadcrumbs_links_hover_color":"","ocean_display_footer_widgets":"default","ocean_display_footer_bottom":"default","ocean_custom_footer_template":"0","footnotes":""},"class_list":["post-47002","page","type-page","status-publish","hentry","entry"],"yoast_head":"<!-- This site is optimized with the Yoast SEO plugin v28.1 - https:\/\/yoast.com\/product\/yoast-seo-wordpress\/ -->\n<title>Disease models - citrus - METOS by Pessl Instruments<\/title>\n<meta name=\"robots\" content=\"index, follow, max-snippet:-1, max-image-preview:large, max-video-preview:-1\" \/>\n<link rel=\"canonical\" href=\"https:\/\/metos.at\/it\/disease-models-citrus\/\" \/>\n<meta property=\"og:locale\" content=\"en_GB\" \/>\n<meta property=\"og:type\" content=\"article\" \/>\n<meta property=\"og:title\" content=\"Disease models - citrus - METOS by Pessl Instruments\" \/>\n<meta property=\"og:description\" content=\"Citrus disease models On FieldClimate we offer models for two Citrus diseases.\u00a0Alternaria brown spot, caused by the fungus\u00a0Alternaria alternata, affects a wide range of orange and mandarin varieties specially Murcott tangors. 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