Ecology Distribution Management Info Impact Info References and Links Contacts

Management Information Chemical: Setaria verticillata was found to develop resistance to Phoyosystem II inhibitors, or C 1/5 herbicides when it became resistant to field levels of atrazine treatment in one study (Gimenez-Esoinosa et al, 1996; Heap, undated). Its rates of recovery of net CO2 mg per dm2 per h/h following a treatment of atrazine, cynazine, and cyprazine at 1.16x10 -5 M leached through silica sand media were 1.5, 0.5, and 0.3 CO2 mg per dm2 respectively (Jensen et al, 1977).          Location Specific Management Information Henderson Is. (Pitcairn) All specimens of Setaria verticillata seen during 1991-92 were destroyed (Brooke et al., 2004 in Varnham, 2006). Pitcairn All specimens of Setaria verticillata seen during 1991-92 were destroyed (Brooke et al., 2004 in Varnham, 2006). Spain Setaria verticillata is a problematic weed to corn crops in Spain where it was first recorded developing a resistance to Phoyosystem II inhibitors, or C 1/5 herbicides such as atrazine in 1992 (Prado & Franco, 2004; Heap, undated).          Management Resources/Links 1. De Prado, Rafael A. and Antonio R. Franco., 2004. Cross-resistance and herbicide metabolism in grass weeds in Europe: biochemical and physiological aspects. Weed Science [0043-1745] De yr:2004 vol:52 iss:3 pg:441 -447 2. Giménez-Espinosa, Rosa; Eva Romera, Manuel Tena, Rafael De Prado., 1996. Fate of Atrazine in Treated and Pristine Accessions of Three Setaria Species. Pesticide Biochemistry and Physiology 56, 196–207 (1996) Article NO. 0073 3. Heap, I. The International Survey of Herbicide Resistant Weeds. Group C1/5 ResistantT Bristly Foxtail (Setaria verticillata) Spain. Online. Internet. June 19, 2008 . Available www.weedscience.com         Summary: Available from: http://www.weedscience.org/Case/Case.asp?ResistID=436 [Accessed 20 June 2008] 4. Jensen, K. I. N., G. R. Stephenson, L. A. Hunt, J. D. Bandeen., 1977. The effect of atrazine, cyanazine and cyprazine on photosynthesis and growth of nine grasses* Weed Research 17 (6) , 379–386 doi:10.1111/j.1365-3180.1977.tb00497.x 5. Steel, M G; Cavers, P B; Lee S M., 1983. The Biology of Canadian Weeds 59. Setaria glauca and Setaria verticillata. Canadian Journal of Plant Science. 63(3). 1983. 711-726. 6. Varnham, K. 2006. Non-native species in UK Overseas Territories: a review. JNCC Report 372. Peterborough: United Kingdom.         Summary: This database compiles information on alien species from British Overseas Territories. Available from: http://www.jncc.gov.uk/page-3634 [Accessed 16 May 2006]          Results Page: 1