252 / FIELDS OF INSTRUCTION


COURSES FOR ADVANCED UNDERGRADUATES AND GRADUATES
PT 500-PROBLEMS IN PLANT PATHOLOGY. 1 to 3 credits
PT 501-INTERMEDIATE PLANT PATHOLOGY. 3 credits
PT 502-PRINCIPLES OF PLANT DISEASE CONTROL. 3 credits
PT 540-TRANSMISSION OF PLANT PATHOGENS BY VECTORS. 3 credits
PT 541-TROPICAL PLANT PATHOLOGY. 4 credits
 GRADUATE COURSES
PT 600-COLLOQUIUM IN PRINCIPLES OF PLANT PATHOLOGY. 1 credit
 May be repeated with change of content up to a maximum of 6 credits.
PT 611-PLANT VIROLOGY LECTURE. 3 credits
 Principles of plant virology; symptomatology, transmission, insect vector rela-
tionships, properties of viruses, purification, electron microscopy, morphology,
serology, and control of viral diseases.
PT 612-PLANT VIROLOGY LABORATORY. 2 credits
 Prerequisite or corequisite: PT 611. Methods of research in plant virology.
PT 621-BACTERIAL PLANT PATHOGENS. 5 credits
 Prerequisite: MCY 302. Plant pathogenic bacteria, with emphasis on bacteriologi-
cal problems unique in plant pathology.
PT 623-FUNGAL PLANT PATHOGENS. 5 credits
 Prerequisites: PT 502, BTY 521. Diseases caused by fungi, emphasizing tax-
onomy and variability of the pathogen, symptomology, host responses to infection,
and factors influencing disease development.
PT 625-PHYSIOLOGY OF PARASITISM. 5 credits
 Prerequisite: PT 301. Physiological aspects of the host-pathogen interaction in
plant diseases.
PT 627-EPIDEMIOLOGY OF PLANT DISEASE. 3 credits
 Prerequisite: PT 301. Principles of epidemiology; effects of edaphic, biotic, and
climatic factors on disease development in populations of plants.
PT 629-PATHOGEN VARIABILITY AND HOST RESISTANCE. 5 credits
 Prerequisites: PT 301, PT 531, MCY 302, AY 465, STA 320. Concepts,
methods, and problems associated with development and utilization of disease-
resistant germ plasm.
PT 650-SEMINAR IN PLANT PATHOLOGY. 1 credit
 Discussion of the literature, techniques, and research pertaining to plant pathology.
Graded on an S/U basis.
PT 690-PROBLEMS IN PLANT PATHOLOGY. 1 to 5 credits
 Prerequisite: Consent of instructor. Study of any field of plant pathology in-
cluding diseases of all major crop groups. May be repeated with change of content
up to a maximum of 9 credits.
PT 697-SUPERVISED RESEARCH. 1 to 5 credits
 Credit not applicable toward degree. May be repeated.
PT 698-SUPERVISED TEACHING. 1 to 5 credits
 Credit not applicable toward degree. May be repeated.
PT 699-MASTER'S RESEARCH. 1 to 17 credits
PT 799-DOCTORAL RESEARCH. 1 to 17 credits