page_title: Colletotrichum lindemuthianum
section_title: Economic effects
hierarchical_section_title: Colletotrichum lindemuthianum / Economic effects
caption_attribution_description: English: The Thingwall-Storeton public footpath cuts right through a crop of Green Beans near Little Storeton, Wirral, England.
context_page_description: Colletotrichum lindemuthianum is a fungus which causes anthracnose, or black spot disease, of the common bean plant. It is considered a hemibiotrophic pathogen because it spends part of its infection cycle as a biotroph, living off of the host but not harming it, and the other part as a necrotroph, killing and obtaining nutrients from the host tissues.
context_section_description: Dry bean is an ancient crop, first domesticated over 7000 years ago and is still a staple crop globally. Today, the largest bean producing nations are Brazil, India, China, Mexico, The United States of America, Myanmar, Canada, and Argentina. In all of these nations, anthracnose is considered one of the most invasive and destructive dry bean diseases, capable of destroying up to 95% of a plantation's yield while also threatening growth and development rates. As such, it is very important for producers to have disease-free certified seeds, which are generally produced in arid regions such as Idaho, where the relative humidity does not surpass the necessary 92% for spore germination. Further precaution is often taken by producers, who apply fungicides such as Azoxystrobin, fluodiooxonil or metalaxyl-m. Applied at a concentration of 125 grams per hectare of dry bean crop, azoxystrobin has been shown to increase bean yields by up to 20%.
caption: Green Bean Crop, Storeton
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