Leaf rust [Puccinia dispersa Erikss.] infection on spring triticale [xTriticosecale Wittm.] and its control with different types and doses of fungicides

• Autorzy: Janusauskaite D , Dabkevicius Z.
• Języki publikacji: EN

Abstrakty

EN

Investigation of leaf rust disease on spring crops of triticale (×Triticosecale Wittm.), itsdistribution dynamics, aswell asthe efficacy of two fungicides, different application doses and timing was carried out at the Lithuanian Institute of Agriculture during 2000–2002. Differences in the disease development were determined by the meteorological conditions, especially the amount of rainfall, and growth stage of plants. Precipitation during 2000 was close to the mean, and the development of leaf rust wasmoderate. In June of 2001 the rainfall wastwice as high asthe norm, which created favourable conditionsfor pathogen development. In 2002 a long droughty period till flowering inhibited the development of leaf rust. The triazole fungicidesJuventus(metkonazole 60 g l–1) and triazole and strobilurine mixture Allegro (kresoxim-methyl 125 g l–1+ epoxikonazole 125 g l–1) were used at full, two-third and half doses once and twice. Both of the fungicides were very effective against leaf rust. Biological efficacy of Juventus applied at any dose or time against leaf rust was 88.3%–99.7%. Allegro efficacy against this disease was slightly higher 94.7%–100%. Application of 1.0; 0.75 and 0.5 l ha–1 doses twice showed a better efficacy than a single application. The higher doses of fungicides were not markedly superior to the lower ones.

PL

W latach 2000–2002 w Litewskim Instytucie Rolnictwa przeprowadzono doświadczenia nad dynamiką rozprzestrzeniania rdzy brunatnej (Puccinia dispersa Erikss.) na pszenżycie jarym (×Triticosecale Wittm.) oraz biologicznej skuteczności działania dwóch fungicydów zastosowanych w trzech dawkach i dwóch terminach. Rozwój choroby zależał od warunków meteorologicznych, w szczególności opadów oraz fazy rozwojowej roślin. Opady w roku 2000 kształtowały sie na poziomie średnim co spowodowało, że i rozwój rdzy brunatnej miał charakter umiarkowany. Natomiast w czerwcu roku 2001, opady były dwukrotnie wyższe od normy co stworzyło warunki sprzyjające rozwojowi patogena. Długi okres suszy, aż do kwitnienia roślin przenżyta w roku 2002, zahamował rozwój rdzy brunatnej. Fungicyd Juventus(metkonazol 60 g l–1) z grupy triazoli oraz Allegro (krezoksym metylowy 125 g l–1+ epoksykonazol 125 g l–1) mieszanina triazolu i strobiluryny, zostały zastosowane w pełnej dawce, w połowie dawki i w dwóch trzecich dawki jako jednorazowy zabieg i dwukrotnie. Obydwa fungicydy były bardzo skuteczne w zwalczaniu rdzy brunatnej. Biologiczna skuteczność preparatu Juventus w każdej zastosowanej dawce i terminie wynosiła 88,3%–99,7%. Skuteczność preparatu Allegro w zwalczaniu P. dispersa była lekko wyższa i wynosiła 94,7%–100%. Dawki 1,0; 0,75 oraz 0,5 l ha–1 zastosowane podwójnie gwarantowały lepszą skuteczność działania preparatu niż zabieg pojedynczy. Wyższe dawki fungicydów nie okazały się znacznie lepsze niż zastosowane dawki niższe.

Słowa kluczowe

EN

fungicide; infection; control; Puccinia dispersa; spring triticale; triticale; efficacy; Triticosecale; leaf rust; dose; type

• Wydawca: -
• Czasopismo: Journal of Plant Protection Research
• Rocznik: 2004
• Tom: 44
• Numer: 1
• Opis fizyczny: p.45-56,fig.,ref.

Twórcy

autor

Janusauskaite D

• Lithuanian Institute of Agriculture, Instituto al.1, Akademija, Dotnuva, 5051 Kedainiai distr., Lithuania

autor

Dabkevicius Z.

Bibliografia

• Arseniuk E., Góral T., Sowa W., Czembor H.J., Krysiak H., Scharen A.L. 1998. Transmission of Stagonospora nodorum and Fusarium spp. on triticale and wheat seed and the effect of seedborne Stagonospora nodorum on disease severity under field conditions. J. Phytopathol., 146, 7: 339–345.
• Bayles R. 1999. The interaction of strobilurin fungicides with cereal varieties. Plant varieties and seeds 12: 129–140.
• Bertelsen J.R., de Neergaard E., Smedegaard-Petersen V. 2001. Fungicidal effects of azoxystrobin and epoxiconazole on phylosphere fungi, senescence and yield of winter wheat. Plant Pathology 50: 190–205.
• Daamen R.A., Stubbs R.W., Stol W. 1992. Surveys of cereal diseases and pests in the Netherlands. 4.Occurrence of powdery mildew and rusts in winter wheat. Netherland J. Plant Pathology 198: 301–312.
• DabkeviciusZ. 1997. Investigation of fungicide application time and frequency on winter wheat stand. Integrated plant protection: achievements and problems. Dotnuva – Akademija: 59–63.
• Gaurilcikienë I. 2001. The spread of fungal leaf diseases in the stand of spring triticale. Agriculture. Scientific articles 74: 264–275.
• Gaurilcikienë I. 2003. Control of fungal leaf diseases in spring triticale crop. Agriculture. Scientific articles 81: 221–233.
• Geagea L. Huber L. Sache I., Flura D., McCartney H.A., Fitt B.D.L. 2000. Influence of simulated rain on dispersal of rust spores from infected wheat seedlings. Agricultural and Forestry Meteorology 101, 1: 53–66.
• Gontarenko O.V., Babayants L.T., Gerzhova M.A. 1998. Leaf spot diseases of wheat and triticale in southern Ukraine. Mikologiya I Fitopatologiya 32, 2: 61–64.
• Jordan V.W.L., Hutcheon J.A. 1994. Strategies for optimal fungicide use in less-intensive cereal growing systems. The BCPC Conference – Pest and Diseases: 687–694.
• Jørgensen L.N., Nielsen G.C. 1998. Reduced dosages of strobilurins for disease management in winter wheat. The BCPC Conference – Pest and Diseases: 993–998.
• Miedaner T., Sperling U. 1995. Effect of leaf rust on yield components of winter rye hybrids and assessment of quantitative resistance. J. Phytopathol., 143: 725–730.
• Milus E.A. 1994. Effect of leaf rust and septoria leaf blotch on yield and test weight of wheat in Arkansas. Plant Disease 78, 1: 291–295.
• Royo C., ParesD. 1996. Yield and quality of winter and spring triticalesfor forage and grain. Grass and Forage Science 51, 4: 449–455.
• Sundin D.R., Bockus W.W., Eversmeyer M.G. 1999. Triazole seed treatments suppress spore production by Puccinia recondita, Stagonospora tritici and Stagonospora nodorum for wheat leaves. Plant Disease 83: 328–332.
• Shtienberg D. 2000. Modelling: the basis for rational disease management. Crop Protection 19: 747–752.
• Stark-Urnau M., Gold R., Guggenheim R., Düggelin M. 1996. Sensitivity of different mildew and rust fungi against kresoxim-methil. Proc. of the 9th European and Mediterranean cereal rusts and powdery mildews conference. 2–6 September. Lunteren, the Netherlands: 268–271.
• TamošiûnasK., DabkevièiusZ., Semaškienë R. 1997. Effect of the reduced fungicide doses on the severity of powdery mildew and glume blotch in winter wheat Ðirvinta I. Integruota augalø apsauga: pasiekimai ir problemos. Dotnuva – Akademija: 125–130.
• Vallavieille-Pope C., Huber L., Leconte M., Goyeau H. 1996. Comparative effectsof temperature and interrupted wet periodson infection of Puccinia dispersa f.sp. tritici and P. striiformis on wheat seedlings in controlled conditions and in the field. Proc. of the 9th European and Mediterranean cereal rusts & powdery mildews conference. 2–6 September. Lunteren, the Netherlands: 290–293.
• Wilson J., Shaner G. 1989. Individual and cumulative effects of long latent period and low infection type reaction to Puccinia recondita in triticale. Phytopathology 79: 101–108.
• Woś H., Maćkowiak W., Cichy H., Paizert K. 1994. Susceptibility of winter triticale to glume blotch, leaf rust and scald. Hodowla Roślin, Aklimatyzacja I Nasiennictwo 38 (3–4): 223–227.