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Pests and Diseases

Science > Agriculture > Field Crops > Cereals > Corn > Pests and Diseases

Web Pages

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

Common Smut of Corn - http://ohioline.osu.edu/hyg-fact/3000/3119.html
Photographs of this common disease, the symptoms, causal organism and management.

Common Smut on Corn - http://www.apsnet.org/online/Archive/1999/corn065.htm
Photograph showing corn leaves infected by Ustilago maydis.

Common Stalk Borer in Corn - http://www.ianrpubs.unl.edu/epublic/pages/publicationD.jsp?publicationId=515
Information on the life history and appearance of this insect with photographs of the damage it does. Also possible cultural and chemical control measures.

Corn Cutworms - http://www.ianrpubs.unl.edu/epublic/live/g1153/build/g1153.pdf
Information and photographs of these and other similar pests to help identify the cause of crop damage, and a guide to control.

Corn Earworm: Helicoverpa zea - http://edis.ifas.ufl.edu/IN302
Photographs and information on the life cycle of this pest, its description, host plants, damage, natural enemies and management using insecticides and biological control.

Corn Rootworm: Integrated Crop Management - http://www.ipm.iastate.edu/ipm/icm/taxonomy/term/56
Various articles on these damaging pests with plenty of information on identification and control.

Corn Smut - http://plantclinic.cornell.edu/FactSheets/corn%20smut/smut.htm
Photographs and information on this fungal disease, its symptoms, disease cycle and management.

Early Season Insects in your Corn Field - http://www.ipm.iastate.edu/ipm/icm/2006/5-15/insects.html
Photographs of larvae and beetles and information to help distinguish between beneficial and harmful creatures.

Eye Spot - http://www.invasive.org/browse/subject.cfm?sub=9388
Photographs and description of Kabatiella zeae infecting maize leaves.

Field Corn Nematode Management - http://edis.ifas.ufl.edu/NG014
Information on the species that attack corn and their diagnosis and management, including nematicides recommended for this crop.

http://www.apsnet.org/online/Archive/1998/corn046.htm - http://www.apsnet.org/online/Archive/1998/corn046.htm
Blue-eye kernels infected with Penicillium.

http://www.apsnet.org/online/Archive/1998/strom4.htm - http://www.apsnet.org/online/Archive/1998/strom4.htm
Photograph of Cercospora zeae-maydis lesions on leafblade.

http://www.apsnet.org/online/Archive/1999/corn317.htm - http://www.apsnet.org/online/Archive/1999/corn317.htm
Photograph of three corn kernels infected with Gibberella zeae.

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

Insect Injury to Mid-Season Corn - http://www.ipm.iastate.edu/ipm/icm/1999/6-28-1999/midscorninj.html
Information and photographs of pests including the European corn borer, stalk borer, armyworm, corn earworm, fall armyworm, stink bug, grasshopper and western corn rootworm.

Insect Management in Field Corn - http://edis.ifas.ufl.edu/IG060
Describes the insect pests most commonly encountered in this crop, with information on inspection, the thresholds for action and control methods.

Insects That Feed on Corn Ears - http://www.ianrpubs.unl.edu/epublic/pages/publicationD.jsp?publicationId=524
Photographs and information on both the major and less common pests that attack corn ears with an identification key.

Integrated Crop Management: Black Cutworm - http://www.ipm.iastate.edu/ipm/icm/taxonomy/term/124
Various articles on these pests of corn crops with plenty of information on identification and control.

Integrated Crop Management: European Corn Borer - http://www.ipm.iastate.edu/ipm/icm/taxonomy/term/133
Plenty of information on this pest, when to look for damage and possible control measures.

Major Corn Diseases in North Carolina - http://ipm.ncsu.edu/corn/diseases/corn_diseases.html
A review of pest and diseases affecting this state's crops.

Petikam's Page on Banded Leaf and Sheath Blight of Maize - http://petikam.tripod.com/
Information about this disease and investigations by researcher at Indian Agricultural Institute. Also contains his curriculum vitae.

Southern Rust on Sweetcorn - http://www.apsnet.org/online/archive/1-11.htm
Photograph of lesions caused by Puccinia polysora.

Starburst on Corn - http://www.apsnet.org/online/Archive/1999/corn100.htm
Photograph of damage to cob caused by Fusarium ear rot.

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