Susceptibility of the Australian Native, Heliotropium crispatum, to the Rust Fungus Uromyces heliotropii Introduced to Control Common Heliotrope, Heliotropium europaeum
Titel:
Susceptibility of the Australian Native, Heliotropium crispatum, to the Rust Fungus Uromyces heliotropii Introduced to Control Common Heliotrope, Heliotropium europaeum
Auteur:
Hasan, S. Delfosse, E. S.
Verschenen in:
Biocontrol science and technology
Paginering:
Jaargang 5 (1995) nr. 2 pagina's 165-174
Jaar:
1995-06-01
Inhoud:
During host-specificity tests of the rust Uromyces heliotropii carried out in Europe against a range of cultivated and wild plants, two species of European heliotropes closely related to the summer annual weed, common heliotrope (Heliotropium europaeum) and one native to Australia, H. crispatum, were found to be susceptible. Detailed observations were made of the degree of infection, the climatic requirements, the attenuation of virulence over time and the low probability of spore transmission for infection. These results, in addition to the scattered, relatively uncommon occurrence of H. crispatum in the field, showed that the plant was unlikely to be adversely affected by the rust, which has been released in Australia to control common heliotrope infestations.
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