Gardner, D. E., and R. E. Burge. 1980. Approaches to the biocontrol of certain exotic trees using vascular wilt fungi. National Park Service and American Institute of Biological Sciences, (Spons.). Proceedings of the 2nd Conference on Scientific Research in the National Parks, 1979. U. S. Department of the Interior, National Park Service; Washington, D. C. 8:447-451.
ABSTRACT
Mimosa trees (Albizzia julibrissin), an exotic species in National Park Service areas, were inoculated with the virulent, host specific, vascular wilt disease fungus Fusarium oxysporum f. sp. perniciosum. Two inoculation methods resulted in disease production. A pathogen-colonized substrate was mixed into the root zone soil, or tree stems were injected directly with aqueous spore suspensions under high pressure (300 p.s.i). Although, lower pressure injection of chemicals (fertilizers, pesticides) into trees in frequently practiced, injection of living organisms under high pressure represents a unique approach. Previous stem inoculation attempts with this naturally root-invading pathogen had been unsuccessful in producing the disease.
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