Crop Knowledge Master Fungi

Guignardia Primer

General Information Summary
Pathogens & Hosts Taxonomy Characteristics Disease Types Management Graphics References

Authors

Andrew K. Gonsalves, Educational Specialist

Stephen A. Ferreira, Extension Plant Pathologist

Department of Plant Pathology, College of Tropical and Agriculture and Human Resources

University of Hawaii at Manoa

PATHOGENS & HOSTS

Over four Guignardia species have been reported to occur in Hawaii (Raabe, et al., 1981). The following is a list of the reported pathogens from this genus (Guignardia) and the hosts they infect. The list is organized by the scientific name of the pathogen species (CAPITAL LETTERS), followed by the various susceptible plant hosts. Words in blue indicate what symptom or disease a given pathogen causes on the listed hosts.

GUIGNARDIA ALYXIAE

maile (Alyxia olivaeformis)

GUIGNARDIA JUSSIAEAE

primrose willow (Ludwigia octivalvis)

GUIGNARDIA MUSAE

banana (Musa acuminata, AAA)

Musa sp.

GUIGNARDIA SP.

Blossom-End Rot:

guava (Psidium guajava)

TAXONOMY

KINGDOM: Mycetae (fungi)

DIVISION: Eumycota

SUBDIVISION: Ascomycotina (The sac fungi)

CLASS: Pyrenomycetes

ORDER: Sphaeriales

GENERAL CHARACTERISTICS

No information is available for this section at the moment, please check future Knowledge Master Versions.

TYPES OF DISEASES

No information is available for this section at the moment, please check future Knowledge Master Versions.

MANAGEMENT

No information is available for this section at the moment, please check future Knowledge Master Versions.

GRAPHICS

Below is a list of graphics that are available for this Genus:

Black rot on fruit of grape

This may be caused by Guignardia bidwellii.

Black rot on leaf of grape

This may be caused by Guignardia bidwellii.

Black rot on stem of grape

This may be caused by Guignardia bidwellii.

REFERENCES

Agrios, G.N. 1988. Plant Pathology, 3rd edition. Academic Press, Inc: San Diego. 803 pp.

Farr, , D.F., G.F. Bills, G.P. Chamuris, and A.Y. Rossman. 1989. Fungi on Plants and Plant Products in the United States. APS PRESS: St. Paul, Minnesota. 1252 pp.

Raabe, Robert D., Ibra L. Conners, and Albert P. Martinez. 1981. Checklist of Plant Diseases in Hawaii. Hawaii Institute of Agriculture and Human Resources, College of Tropical Agriculture and Human Resources, University of Hawaii (Information Text Series 022).

Streets, R.B. 1982. The Diagnosis of Plant Diseases: a field and laboratory manual emphasizing the most practical methods for rapid identification. The University of Arizona Press: Tucson, Arizona.

 

 

JUNE 1994

 

1-GUIGNA

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