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   Plant Pathology & Crop Physiology
 more...>Departments>Plant Pathology & Crop Physiology>
Plant Pathology & Crop Physiology

The Department of Plant Pathology and Crop Physiology is recognized nationally and internationally for applied and basic research on economically important agricultural crops. Climactic conditions in Louisiana allow cultivation of and research on semitropical crop species such as rice, sugarcane, cotton, sweet potatoes, and soybeans. Through our extension services, we conduct research and assist Louisiana farmers in the management and control of plant disease.

Our graduate program presents students the opportunity to work with Louisiana Agricultural Experiment Station personnel who conduct investigations in areas of plant pathology, crop physiology and plant molecular biology. M.S. and Ph.D. graduates of the department are prepared for challenging careers in agricultural research at universities, governmental and private agencies.

302 Life Sciences Bldg · Baton Rouge, LA · 70803
Phone: (225) 578-1464 · Fax: (225) 578-1415
Undergraduate Curriculum
Plant and Soil Systems (Agricultural Pest Management Area) The curriculum in plant and soil systems consolidates the curricula for the departments of Agronomy, Entomology, Horticulture and Plant Pathology & Crop Physiology.

Graduate Studies in Plant Pathology and Crop Physiology
Plant Pathology and Crop Physiology Graduate Program Overview
Sooty Mold
mold

Sooty mold, caused by Capnodium sp., is the result of a nonplant pathogenic fungus that grows superficially as a thin black layer on leaves, fruit, twigs and stems of various crop plants or trees. This fungus grows on the honeydew produced by insects with piercing-sucking mouthparts. The insects, including aphids, mealy bugs, scales and whiteflies, pierce the plant tissue with their stylets and suck cell sap.

Louisiana Plant Pathology: Reniform Nematode
reniform nematode

During the past two decades, the reniform nematode has emerged as one of the most important nematode species of plant crops in Louisiana. It attacks a wide range of plant types and is particularly damaging to crops such as cotton, sweet potato, soybeans and many vegetables. Symptoms, management strategies and color images included. (PDF Format Only)
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Nematode Assay Form
Root-knot nematode damage.
Nematode assay form is now available as a fill-in form. It should be included with all samples submitted for nematode analysis.
Submitting Plant Specimens for Diagnosis
Herbaceous speciment with roots wrapped in a plastic bag to retain moisture.
Submitting plant specimens for disease diagnosis is specific for different groups of plants. This is a short guide on proper submission of herbaceous plants, shrubs, trees and turf samples.
County Extension Agent Training 2008
Training
The LSU AgCenter extension personnel associated with the Plant Disease Diagnostic Clinic and the Nematode Advisory Service conducted a 2-day training session for county extension agents on August 19-20, 2008. Twenty-one county agents attended the training session, which, focused on various aspects of plant disease diagnosis.Dr. Lawrence Datnoff, head of the Department of Plant Pathology & Crop Physiology, and Dr. Bobby Fletcher, Jr., Assistant Director of the Louisiana Cooperative Extension
Mole Crickets
Mole Crickets
Mole crickets cause millions of dollars in turf and grass damage each year. Their burrowing in the soil breaks up the soil and causes roots to dry out. Identification, life cycle and control included.
Plant Disease Submission Form for General Public
Submission Form
Provide all the information required on Plant Disease Submission Form for rapid and accurate diagnosis of plant health problems. Completed form must accompany the sample submitted to Plant Disease Diagnostic Clinic for diagnosis.
Get the Facts about Citrus Greening (or Huanglongbing)
citrus greening
Citrus greening is one of the most serious citrus diseases, and a pest responsible for spreading it has now been found in Louisiana. Information on what to look for and where to look, what plants are preferred by the disease and where to report suspected disease symptoms or insect sightings.
Citrus Greening (or Huanglongbing) Identification Card
citrus greening
Identification of citrus greening and the Asian citrus psyllid.
How To Submit A Sample
Collecting material for disease diagnostic identification.
Submitting a proper sample with as much information as possible is extremely important in diagnosing disease. Collected sample should be mailed immediately to prevent drying and development of secondary pathogens.
Nematode Management in Louisiana Sweet Potato Production
nematodes in sweet potatoes
Plant-parasitic nematodes can damage plants in many ways and are considered to be a serious threat to sweet potato production in Louisiana. This publication describes problematic nematode species and management strategies available for these pests.
Louisiana Plant Pathology: Southern Root-knot Nematode on Vegetables
southern root-knot nematode
The southern root-knot nematode (Meloidogyne incognita) is a widespread problem in Louisiana. This pest favors the soils where most vegetables are produced and has been found in about 25 percent of the vegetable gardens in our state. This nematode can be extremely damaging to some crops and causes severe losses. (PDF Format Only)
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