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Science > Agriculture > Field Crops > Legumes > Soybean > Pests and Diseases

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Anthracnose - http://www.apsnet.org/online/Archive/2004/IW000034.asp
Image of soybean pods attacked by the anthracnose fungus Colletotrichum truncatum, and information on treatment.

Asian Soybean Rust - http://attra.ncat.org/attra-pub/asian_soy_rust.html
This article discusses Asian Soybean Rust, its occurrence, and the control options available for organic producers, such as biofungicide and foliar and other fertilizations.

Bean Leaf Beetle: Integrated Crop Management - http://www.ipm.iastate.edu/ipm/icm/taxonomy/term/260
Various articles on soybean beetles and aphids, identification of insects and transmission of viruses.

Common Diseases of Soybean - http://nu-distance.unl.edu/homer/disease/agron/soybean/
Photographs and information on various diseases which may affect this crop, the life cycle of the causal agents, the symptoms and plant health management.

Farm Assist: Aphid Watch - http://www.farmassist.com/aphidwatch/index.aspx?Menu=Tools
Constantly updated infestation maps track aphid activity on soybean crops across the US. Includes local and regional maps.

http://www.ent.iastate.edu/imagegal/plantpath/soybean/ - http://www.ent.iastate.edu/imagegal/plantpath/soybean/
Photographs of plants infected by various pathogens and pests, with links to articles on integrated crop management.

Insect Management in Soybeans - http://edis.ifas.ufl.edu/IG064
Describes the insect pests most commonly encountered in this crop, with information on scouting techniques, the thresholds for action and control methods.

Integrated Crop Management: Soybean Aphid - http://www.ipm.iastate.edu/ipm/icm/taxonomy/term/578
Various articles on these pests with plenty of information on chemical and biological control.

Organic Control of White Mold on Soybeans - http://attra.ncat.org/attra-pub/whitemold.html
This article discusses non-chemical options for organic control of white mold on soybeans, including varietal selection, canopy management, delayed planting, crop rotation, tillage reduction, and biofungicides.

Pod and Stem Blight - http://www.forestryimages.org/browse/detail.cfm?imgnum=1436012
Photograph of an infection caused by Diaporthe phaseolorum var Sojae on a soybean plant.

Soybean Disease Research: Soy Diseases - http://www.soydiseases.uiuc.edu/index.cfm?category=diseases
Information on diseases affecting this crop, including symptoms, the disease cycle and management.

Soybean Diseases - http://www.soybeans.umn.edu/crop/diseases/index.htm
Information on the diseases that affect this crop with many photographs of the symptoms.

Soybean Insects and Diseases - http://extension.agron.iastate.edu/soybean/topicpage2.html
Photographs and information from Iowa State University on soybean insects, foliar injury and disease, stem and root diseases, seed and seedling diseases, soybean viruses and cyst nematodes.

Soybean Nematode Management - http://edis.ifas.ufl.edu/NG018
Information on the species that attack soybean, their diagnosis and management, including nematicides recommended for this crop.

Soybean Rust, Phakopsora pachyrhizi - http://www.forestryimages.org/browse/detail.cfm?imgnum=1265016
Photograph of affected foliage and a description of the symptoms.

Soybean Rust: Is the U.S. Soybean Crop at Risk? - http://www.plantmanagementnetwork.org/pub/search/topsearch.asp?page=http://www.apsnet.org/online/feature/rust/
Information on the fungus Phakopsora pachyrhizi and its distribution and effect on soya bean plants, with many photographs.

Stem Rot of Soybean - http://www.apsnet.org/online/Archive/2000/dorrance.htm
Image of stem infected with Phytophthora sojae.

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