{"id":49443,"date":"2022-12-02T09:23:02","date_gmt":"2022-12-02T09:23:02","guid":{"rendered":"https:\/\/dev.metos.global\/?page_id=49443"},"modified":"2026-05-04T09:39:24","modified_gmt":"2026-05-04T09:39:24","slug":"disease-models-coffee","status":"publish","type":"page","link":"https:\/\/metos.global\/en\/disease-models-coffee\/","title":{"rendered":"Disease models &#8211; coffee"},"content":{"rendered":"\t\t<div data-elementor-type=\"wp-page\" data-elementor-id=\"49443\" class=\"elementor elementor-49443\" data-elementor-post-type=\"page\">\n\t\t\t\t\t\t<section class=\"elementor-section elementor-top-section elementor-element elementor-element-8403365 elementor-section-full_width elementor-section-height-default elementor-section-height-default\" data-id=\"8403365\" 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-9cd29c6\" data-id=\"9cd29c6\" 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-f970ebc elementor-widget elementor-widget-image\" data-id=\"f970ebc\" 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\/12\/Disease-Models-coffee.png\" class=\"attachment-full size-full wp-image-49445\" alt=\"Disease Models - coffee\" srcset=\"https:\/\/metos.global\/wp-content\/uploads\/2022\/12\/Disease-Models-coffee.png 1920w, https:\/\/metos.global\/wp-content\/uploads\/2022\/12\/Disease-Models-coffee-300x55.png 300w, https:\/\/metos.global\/wp-content\/uploads\/2022\/12\/Disease-Models-coffee-1024x187.png 1024w, https:\/\/metos.global\/wp-content\/uploads\/2022\/12\/Disease-Models-coffee-768x140.png 768w, https:\/\/metos.global\/wp-content\/uploads\/2022\/12\/Disease-Models-coffee-1536x280.png 1536w, https:\/\/metos.global\/wp-content\/uploads\/2022\/12\/Disease-Models-coffee-18x3.png 18w\" 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-ed078ea elementor-section-boxed elementor-section-height-default elementor-section-height-default\" data-id=\"ed078ea\" 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-41dae9f\" data-id=\"41dae9f\" 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-fbeca8a elementor-widget elementor-widget-heading\" data-id=\"fbeca8a\" 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>Coffee <\/b>disease models\n<\/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-66f8c04 elementor-section-boxed elementor-section-height-default elementor-section-height-default\" data-id=\"66f8c04\" 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-c6255b8\" data-id=\"c6255b8\" 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-ee2b6c9 elementor-widget elementor-widget-heading\" data-id=\"ee2b6c9\" 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=\"#coffee-leaf-rust\">COFFEE LEAF RUST -<\/br><em>Hemelia vastatrix<\/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-040c405\" data-id=\"040c405\" 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-d317e07 elementor-widget elementor-widget-heading\" data-id=\"d317e07\" 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=\"#coffee-berry-disease\">COFFEE BERRY DISEASE -<\/br><em>Colletotrichum coffeanum<\/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-1ebb499\" data-id=\"1ebb499\" 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-035a119 elementor-widget elementor-widget-heading\" data-id=\"035a119\" 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=\"#coffee-bacterial-blight-of-coffee\">BACTERIAL BLIGHT OF COFFEE -<\/br><em>Pseudomonas siringie cv. garciae <\/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\t<\/div>\n\t\t<\/section>\n\t\t\t\t<section class=\"elementor-section elementor-top-section elementor-element elementor-element-8d4404f elementor-section-boxed elementor-section-height-default elementor-section-height-default\" data-id=\"8d4404f\" 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-c7cf217\" data-id=\"c7cf217\" 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-4e10711 elementor-widget elementor-widget-heading\" data-id=\"4e10711\" 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=\"#coffee-pesticide-wash-off\">PESTICIDE<\/br>WASH OFF<\/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-dd1e031\" data-id=\"dd1e031\" 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<div class=\"elementor-column elementor-col-33 elementor-top-column elementor-element elementor-element-1791590\" data-id=\"1791590\" 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-a2a43dc elementor-section-boxed elementor-section-height-default elementor-section-height-default\" data-id=\"a2a43dc\" 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-699ef13\" data-id=\"699ef13\" 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-4c081b0 elementor-align-center elementor-widget elementor-widget-button\" data-id=\"4c081b0\" 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-ceee341 elementor-section-boxed elementor-section-height-default elementor-section-height-default\" data-id=\"ceee341\" 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-358568e\" data-id=\"358568e\" 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-eb766c2 elementor-widget-divider--view-line elementor-widget elementor-widget-divider\" data-id=\"eb766c2\" 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-d71d572 elementor-section-boxed elementor-section-height-default elementor-section-height-default\" data-id=\"d71d572\" 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-934689d\" data-id=\"934689d\" 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-60c0a84 elementor-widget elementor-widget-menu-anchor\" data-id=\"60c0a84\" 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=\"coffee-leaf-rust\"><\/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-8ab1ecf elementor-widget elementor-widget-heading\" data-id=\"8ab1ecf\" 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\">Coffee leaf rust<\/h2>\t\t\t\t<\/div>\n\t\t\t\t<\/div>\n\t\t\t\t<div class=\"elementor-element elementor-element-d917046 elementor-widget elementor-widget-spacer\" data-id=\"d917046\" 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-2771bce elementor-widget elementor-widget-text-editor\" data-id=\"2771bce\" 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>Coffee Leaf Rust caused by\u00a0<em>Hemelia vastatrix<\/em> is the most well known coffee disease. It was first detected in 1861 in the lake Victoria Area of Kenya. In 1869 it was found in Sri Lanka (former Ceylon), where it spread over the whole coffee growing areas worldwide, except the growing areas of Hawaii.<\/p><h3>Symptoms<\/h3><p>Yellow to orange powdery spots appear on the underside of leaves, with corresponding chlorotic patches on the upper side. Initially, these are only 2-3 mm in diameter, but steadily expand and can eventually reach a diameter of several centimeters. Young lesions may appear as small chlorotic spots before sporulation occurs. The centers of older lesions become necrotic and the sporulating zone is restricted to the outermost zone.<\/p><p>A major effect of the rust is to cause defoliation. Symptoms are visible 2 t0 3 weeks after infection. Sporulation occurs after 2 to 8 weeks.<\/p><h3>Coffee Leaf Rust Infection<\/h3><p>Uredospores need\u00a0<u>free water<\/u>\u00a0to germinate and to form an appressoria. Germination takes place within 2 to 10 hours depending on climate conditions. Appressoria formation takes less than 6 hours under optimum condition. At least after 22 to 24 hours the infection process is finished.<\/p><p><span style=\"text-decoration: underline;\">Requirements for Infection<\/span><\/p><ul><li>Leaf Wetness<\/li><li>Darkness<\/li><li>Air Temperature in between 15\u00b0C and 28\u00b0C<\/li><li>Optimum Air Temperature is 22\u00b0C to 25\u00b0C<\/li><\/ul><p><span style=\"text-decoration: underline;\">The Coffee Leaf Rust Infection Model<\/span><\/p><p>Shows the progress of weak, moderate and severe Infections. The graph below shows an infection for the 7th and 8th of March for Sabukia Kenya. A weak infection could be completed and a moderate infection could be nearly completed, where the leaf wetness was not lasting long enough to complete a severe Infection.<\/p><p><span style=\"text-decoration: underline;\">Coffee Leaf Rust Infection Severity<\/span><\/p><p>The severity of an infection is depending on the:<\/p><ul><li>Quantity of Spores<\/li><li>Distribution of Spores<\/li><li>Portion of Spores germinating and infecting during the given leaf wetness period.<\/li><\/ul><p>The quantity of spores can not be accessed on base of weather data. For the spore distribution we have the factor wind and rain. In a dry atmosphere spores will be distributed by wind. During a rain storm splashing rain will distribute the newly formed spores which might be the most virulent ones.<\/p><p><span style=\"text-decoration: underline;\">Coffee Leaf Rust Infection Severity Model<\/span><br \/>The severity of an infection is calculated by the:<\/p><ul><li>Sum of rain during during infection<\/li><li>If it was a weak, moderate or severe Infection<\/li><\/ul><p><span style=\"text-decoration: underline;\">The FieldClimate Coffee Leaf Rust Severity Model uses the following\u00a0decision system:<\/span><\/p><ul><li>if CLRsevere=100% and rainsum &gt;= 5 then CLRseverity := 5 else<\/li><li>if CLRmoderate=100% and rainsum &gt;= 10 then CLRseverity := 5 else<\/li><li>if CLRsevere=100% and rainsum &gt; 2 then CLRseverity := 4 else<\/li><li>if CLRmoderate=100% and rainsum &gt;= 5 then CLRseverity := 4 else<\/li><li>if CLRsevere=100% then CLRseverity := 3 else<\/li><li>if CLRmoderate=100% and rainsum &gt;= 2 then CLRseverity := 3 else<\/li><li>if CLRweek=100% and rainsum &gt;= 10 then CLRseverity := 3 else<\/li><li>if CLRmoderate=100% then CLRseverity := 2 else<\/li><li>if CLRweek=100% and rainsum &gt;= 2 then CLRseverity := 2 else<\/li><li>if CLRweek=100% then CLRseverity := 1 else CLRseverity:=0<\/li><\/ul><h3>Coffee Leaf Rust Infection Severity Model<\/h3><p>The severity for the coffee leaf rust infection at the 7th and 8th of March at Sabukia, Kenya was rated to be 2. There was only a weak infection and it was raining more than 2 mm.<br \/>Looking for the daily values might give a better overview about the situation. This graph shows the sevirity value of Coffee Leaf Rust and Coffee berry disease together with the Propagation potential of Bacterial Blight. This data are again form Sabukia, Kenya. We can see some Coffee Leaf rust Infections in the second week of February and beginning with the forth week of February a higher incidence of Coffee Leaf Rust Infections with higher severity ratings.<\/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-6ab0f8e elementor-section-boxed elementor-section-height-default elementor-section-height-default\" data-id=\"6ab0f8e\" 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-88f33ce\" data-id=\"88f33ce\" 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-0c2913d elementor-widget-divider--view-line elementor-widget elementor-widget-divider\" data-id=\"0c2913d\" 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-9bb69ec elementor-section-boxed elementor-section-height-default elementor-section-height-default\" data-id=\"9bb69ec\" 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-eebf96a\" data-id=\"eebf96a\" 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-1f1714d elementor-widget elementor-widget-menu-anchor\" data-id=\"1f1714d\" 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=\"coffee-berry-disease\"><\/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-cec59e7 elementor-widget elementor-widget-heading\" data-id=\"cec59e7\" 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\">Coffee berry disease<\/h2>\t\t\t\t<\/div>\n\t\t\t\t<\/div>\n\t\t\t\t<div class=\"elementor-element elementor-element-669c4f6 elementor-widget elementor-widget-spacer\" data-id=\"669c4f6\" 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-893e8c4 elementor-widget elementor-widget-text-editor\" data-id=\"893e8c4\" 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>Coffee Berry Disease\u00a0caused by\u00a0<em>Colletotrichum coffeanum<\/em> was detected in Kenya 1922. The fungus lives in the bark of the coffee tree and produces spores which attack the coffee cherries. Spraying has been determined to be the best way to avoid the coffee berry disease.<\/p><h3>Coffee Berry Disease Infection Severity Model<\/h3><p>Although this pathogen is capable of infecting leaves, stem bark, and twigs of the coffee plant, only the strain or species of\u00a0<em>Colletotrichum<\/em>\u00a0that can infect immature or green berries is the causal organism of CBD. Direct losses occur as a result of flower and young fruit infection. CBD on green berries has two forms. Active lesions are initially evident as small dark sunken spots that spread rapidly to involve as much as all of the berry. If infection occurs early and climatic conditions favor disease development, berry development is arrested, resulting in mummified berries on the fruiting branch.<\/p><h3><strong>Coffee Berry Disease Infection<\/strong><\/h3><p>Flowers are susceptible at all developmental stages from the pale green unopened spike. Immature fruit or berries are most susceptible during their expansion phase which occurs from 4-14 weeks after flowering. Earlier berry stages or pin head berries and the mature green beans are fairly resistant, becoming susceptible again as the berry begins to ripen. The pathogen sporulates readily and is evidenced by a pale pink crust on the lesion surface. When the berry ripens and anthracnose fully develops, the bean can become infected and seed borne.<\/p><p>Spores germinate to produce germ tubes and appressoria in\u00a0<u>free water<\/u>\u00a0from which infection pegs emerge to penetrate the surface cuticle.\u00a0<u>Optimum Temperature is form 22\u00b0C to 27\u00b0C<\/u>\u00a0it can take place from\u00a0<u>10\u00b0C to 30\u00b0C.<\/u>\u00a0Infection leads to typical black sunken anthracnose lesions of CBD initially appear about 1 week after inoculation and most by 2 weeks for berries.<\/p><p>During the afternoon of the second of March we can see that a sporulation of CBD took place in Sabukia, Kenya. This sporulation completed at 22:00 and the model started to calculate the progress of an infection. This infection was completed at 5:00 at the third of March. Whereas at the first of March air temperature has been too low to complete an infection.<\/p><h3><strong>Coffee Berry Disease Infection Severity<\/strong><\/h3><p>The Infection severity is evaluated on basis of the\u00a0<u>rain intensity<\/u>\u00a0during the leaf wetness period leading to infection. More than 10 mm of rain =&gt; Severity := 5<\/p><ul><li>More than 5 mm of rain =&gt; Severity := 4<\/li><li>More than 2 mm of rain =&gt; Severity := 3<\/li><li>No rain =&gt; Severity := 2<\/li><li>No Infection =&gt; Severity := 0<\/li><\/ul><p>The infection was completed at 5:00 at the third of March. The severity was rated to be 3. There has been more than 2 mm of rain during the leaf wetness period.<\/p><p>When we look for the daily values we can get an overview over the complete February and the first day of March. Where we can see an increase in disease severity in the last week of February and in the first days of March.<\/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-5b85b87 elementor-section-boxed elementor-section-height-default elementor-section-height-default\" data-id=\"5b85b87\" 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-c873dbf\" data-id=\"c873dbf\" 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-c5aea2a elementor-widget-divider--view-line elementor-widget elementor-widget-divider\" data-id=\"c5aea2a\" 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-f7c5c5e elementor-section-boxed elementor-section-height-default elementor-section-height-default\" data-id=\"f7c5c5e\" 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-7029d08\" data-id=\"7029d08\" 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-6794a7c elementor-widget elementor-widget-menu-anchor\" data-id=\"6794a7c\" 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=\"coffee-bacterial-blight-of-coffee\"><\/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-16e37e0 elementor-widget elementor-widget-heading\" data-id=\"16e37e0\" 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\">Bacterial blight of coffee<\/h2>\t\t\t\t<\/div>\n\t\t\t\t<\/div>\n\t\t\t\t<div class=\"elementor-element elementor-element-4a1b227 elementor-widget elementor-widget-spacer\" data-id=\"4a1b227\" 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-edc4116 elementor-widget elementor-widget-text-editor\" data-id=\"edc4116\" 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>Bacterial Blight of Coffee\u00a0caused by\u00a0<em>Pseudomonas siringie cv. garciae<\/em> makes a leaf and twig blight on coffee plants in East Africa and South America.<\/p><h3>Symptoms<\/h3><p>Lesions on the leaf begin as water-soaked spots that turn black and expand. So the leaves become necrotic and curl inwards, but remain attached to the plant. When the terminal bud on the shoot becomes infected, the infection moves down causing dieback. Axial buds on young branches in some distance form the tip are vulnerable to infection too. The lesion can griddle the branch, damaging the vascular tissue and causing the branch above the blackened node to wilt and die. The most typical symptom of heave infestations are blackened tips of branches looking like burned.<\/p><h3><strong>Weather situations favoring the Infection<\/strong><\/h3><p>Bacterial blight is most endemic in the higher growing areas like around Mount Elgor, Solai and parts of the Nyeri district in Kenya. Here\u00a0<u>infections are mostly found after cool nights and most frequent after hail storms<\/u>\u00a0where the wounds made by the hail are the entry ports for the bacteria to infect the plants and the leaf wetness left after the hail is giving the moisture for the infection.\u00a0<u>Optimum temperatures for this disease tend to be around 12 to 25\u00b0C.<\/u>\u00a0If there is an event allowing the bacteria to infect the coffee tree, the infection severity will be as higher as more inoculum is available.<\/p><h3><strong>Bacterial Blight of Coffee in the FieldClimate bacterial propagation model<\/strong><\/h3><p>For Kisi, Kenya bacterial propagation was quite low during February and increased at the end of February beginning of March with the onset of rains.<\/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-ccb9a18 elementor-section-boxed elementor-section-height-default elementor-section-height-default\" data-id=\"ccb9a18\" 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-9db3a16\" data-id=\"9db3a16\" 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-6aabec7 elementor-widget-divider--view-line elementor-widget elementor-widget-divider\" data-id=\"6aabec7\" 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-65dc6c3 elementor-section-boxed elementor-section-height-default elementor-section-height-default\" data-id=\"65dc6c3\" 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-483f267\" data-id=\"483f267\" 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-1ae79c6 elementor-widget elementor-widget-menu-anchor\" data-id=\"1ae79c6\" 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=\"coffee-pesticide-wash-off\"><\/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-1622448 elementor-widget elementor-widget-heading\" data-id=\"1622448\" 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\">Pesticide wash off in coffee trees<\/h2>\t\t\t\t<\/div>\n\t\t\t\t<\/div>\n\t\t\t\t<div class=\"elementor-element elementor-element-8fa9610 elementor-widget elementor-widget-spacer\" data-id=\"8fa9610\" 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-2cb8376 elementor-widget elementor-widget-text-editor\" data-id=\"2cb8376\" 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>Intense rain will wash off the pesticides residuing on the leaves of coffee trees or other plants. There has been a big improvement of the rain hardness of modern fungicides since 1980. Actually we can expect the most modern fungicide to resist up to 30 mm of rain if they had a chance to dry on the leaf. If the rain was starting immediately after the spray or trough the spring the rain resistance might be widely reduced.<\/p><p>Old fashioned formulations of contact fungicides we have to expect a rain hardness of less than 12 mm. Like we were used to it during the 1970th. To wet the leaves in a vineyard it needs approximately 2 mm of rain. Therefore in this module we only accumulate rains with are bigger than 2mm within one leaf wetness period. This means there might be in total 6 mm of rain during a single day, but this module is not accumulating any of it because the leaves has got dry again before it was raining 2 mm.<\/p><p>Rain is accumulated for 3, 5 and 7 days. Over a longer period plant growth is much more important for the effect of contact fungicides than rain reistance of the compounds.<\/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-86ca7bc elementor-section-boxed elementor-section-height-default elementor-section-height-default\" data-id=\"86ca7bc\" 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-ce7e97c\" data-id=\"ce7e97c\" 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-88f9860 elementor-widget elementor-widget-menu-anchor\" data-id=\"88f9860\" 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-97bdcf4 elementor-widget elementor-widget-heading\" data-id=\"97bdcf4\" 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-c9d2b2c elementor-section-content-middle elementor-section-boxed elementor-section-height-default elementor-section-height-default\" data-id=\"c9d2b2c\" 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-15da75c\" data-id=\"15da75c\" 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-7c36334 elementor-widget elementor-widget-text-editor\" data-id=\"7c36334\" 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-ac3af58\" data-id=\"ac3af58\" 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-fa06945 elementor-align-left elementor-widget elementor-widget-button\" data-id=\"fa06945\" 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>Coffee disease models COFFEE LEAF RUST &#8211;Hemelia vastatrix COFFEE BERRY DISEASE &#8211;Colletotrichum coffeanum BACTERIAL BLIGHT OF COFFEE &#8211;Pseudomonas siringie cv. garciae PESTICIDEWASH OFF Recommended equipment Coffee leaf rust Coffee Leaf Rust caused by\u00a0Hemelia vastatrix is the most well known coffee disease. It was first detected in 1861 in the lake Victoria Area of Kenya. In [&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_front_end_style_editor":"no","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-49443","page","type-page","status-publish","hentry","entry"],"yoast_head":"<!-- This site is optimized with the Yoast SEO plugin v28.3 - https:\/\/yoast.com\/product\/yoast-seo-wordpress\/ -->\n<title>Disease models - coffee - 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.global\/en\/disease-models-coffee\/\" \/>\n<meta property=\"og:locale\" content=\"en_GB\" \/>\n<meta property=\"og:type\" content=\"article\" \/>\n<meta property=\"og:title\" content=\"Disease models - coffee - METOS by Pessl Instruments\" \/>\n<meta property=\"og:description\" content=\"Coffee disease models COFFEE LEAF RUST &#8211;Hemelia vastatrix COFFEE BERRY DISEASE &#8211;Colletotrichum coffeanum BACTERIAL BLIGHT OF COFFEE &#8211;Pseudomonas siringie cv. garciae PESTICIDEWASH OFF Recommended equipment Coffee leaf rust Coffee Leaf Rust caused by\u00a0Hemelia vastatrix is the most well known coffee disease. 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