|Senesac, A - CORNELL UNIV.|
Submitted to: American Phytopathological Society Abstracts
Publication Type: Abstract Only
Publication Acceptance Date: March 15, 2003
Publication Date: August 9, 2003
Citation: BRUCKART, W.L., SENESAC, A. PUCCINIA LAGENOPHORAE FOR BIOLOGICAL CONTROL OF COMMON GROUNDSEL IN THE UNITED STATES: POTENTIAL AND CONCERNS. Phytopathology. 93:S123. 2003. Technical Abstract: Puccinia lagenophorae (PL) is an exotic rust fungus candidate for biological control of common groundsel (Senecio vulgaris) in the U.S. In a containment greenhouse, PL caused a 30% reduction in plant dry weight compared with uninoculated controls. Bellis perennis (English daisy) also was susceptible to infection by PL in containment greenhouse studies. Not tested to date are any of nearly 100 species of Senecio native to North America. In 2001, PL was discovered on both S. vulgaris and B. perennis in the U.S. Issues from discovery of PL in the U.S. include: 1)how much damage and control will the disease cause to common groundsel in the U.S., and 2) are North American species of Senecio and related plants at risk from PL? This is an appeal to document either the occurrence or lack of infection of S. vulgaris by PL in the Eastern U.S. Samples can be sent to the USDA-ARS in Frederick, MD, to confirm whether the infection is caused by PL.