Seed-borne fungi identified from exotic pepper (Capsicum spp.) germplasm samples introduced during 1976-2005.
Quarantine processing of 6398 pepper (Capsicum spp.) germplasm samples introduced during 1976-2005 resulted in the identification of 16 pathogenic fungi. Among the identified fungi, those of high economic significance and listed as seed-borne in Capsicum spp. included: Cercospora capsici, Colletotrichum capsici, C. gloeosporioides (tel. Glomerella cingulata), C. acutatum, Phomopsis capsici (tel. Diaporthe phaseolorum), Fusarium solani, Macrophomina phaseolina and Verticillium albo-atrum, as well as other fungal pathogens for which Capsicum is a non-host crop, such as Alternaria zinniae, Diplodia sp., Drechslera halodes, D. longirostrata, D. maydis, D. rostrata, D. sorghicola and D. sorokiniana. Some of the identified fungi have a very wide host range. Countries of origin of the germplasm and fungi identified are presented, and economic significance of the important species are discussed.