Plant Pathology Journal1812-53871812-5425Asian Network for Scientific Information10.3923/ppj.2004.19.253-) Effectiveness Against Phytophthora
cinnamomi Rands on Thryptomene calycina, Banksia grandis and
Banksia spinulosa]]>AryanthaNyoman PugegGuestDavid I.1200431The present study shows that Potassium phosphonate has been proven to slow
down the growth rate of P. cinnamomi in in vitro. Phosphonate
drench as low as 1 g L-1 was effective in protecting Thryptomene
calycina, Banksia grandis and B. spinulosa in pot and field
trials. In glass house trials, concentrations as low as 1 g L-1 (drench) significantly suppressed the P. cinnamomi population.
Concentrations over 2 1/2 g L-1
were phytotoxic to all plant species tested. The most sensitive species was
B. spinulosa. Phosphonate (5 g L-1 ) killed all
B. spinulosa plants in seven weeks, therefore it must be used with a
great care. Phosphonate treatment alone was effective protecting plants from
disease in the field, but did not result in high plant health. Despite new root
growth in pot trials after seven weeks, poor growth was commonly observed on
T. calycina after 14 months in field trials. This suggests that phosphonate
is not suitable as sole application particularly for the long term. A combination
of phosphonate with compost as well as antagonist as an integrated management
will be a good alternative for P. cinnamomi management in the future.]]>Cohen, Y. and M.D. Coffey,198624311338Guest, D.I., K.G. Pegg and A.W. Whiley, 1996Phytophthora diseases, Part 1-their control. ]]>18 366369Coffey, M.D. and M.C. Joseph, 19853PO3 and Fosetyl-Al on the life cycle of Phytophthora cinnamomi and Phytophthora citricola.]]>7510421046Fenn, M.E. and M.D. Coffey, 19857510641068Guest, D.I., 198425125134Benson, D.M., 1990Phytophthora cinnamomi.]]>74635637Coffey, M.D., S.D. Campbell and F.B Guillemet, 1984Phytophthora cinnamomi on avocado rootstocks. ]]>68956958Marks, G.C. and I.W. Smith, 1992Leucodendron caused by Phytophthora cinnamomi.]]>32255259Ali, Z. and D.I. Guest, 1998Phytophthora cinnamomi root rot of Xanthorrhoea australis and X. minor.]]>264044Cooke, L.R. and G. Little, 2002581725Shew, H.D. and D.M. Benson.,1982Phytophthora cinnamomi.]]>7210291032Grant, B.R., R.H. Dunstan, J.M. Griffith, J.O. Niere and R.H. Smillie,1990Phytophthora.]]>19115121Perez, V., A.M. Mamdouh, J.C. Huet, J.C. Pernollet and G. Bompeix,199516191194Coffey, M.D. and L.A. Bower, 1984In vitro variability among isolates of eight Phytophthora species in response to phosphorous acid. ]]>74738742Guest, D.I. and G. Bompeix, 199019113115Greenhalgh, F.C., R.F. Deboer, P.R. Merriman, G. Hepworth and P.J. Keane, 1994Phytophthora root rot irrigated subterranean clover with potassium phosphonate in Victoria, Australia. ]]>4310091019Smillie, R., B.R. Grant and D. Guest, 1989Phytophthora spp. in plants. ]]>79921926Komorek, B.M. and B.L. Shearer,1995Phytophthora cinnamomi in native plant communities.]]>1995pp: 3434Vegh, I., F. Baillot and J. Roy,1977Phytophthora cinnamomi Rands, agent du deperissement des arbustes dornament.]]>268595