INVESTIGADORES
BENTIVEGNA Diego Javier
artículos
Título:
Integrated management of cutleaf teasel (Dipsacus laciniatus) alogn roadsides in Missouri, USA
Autor/es:
BENTIVEGNA D. J.; SMEDA R.J.
Revista:
INTERNATIONAL JOURNAL OF PEST MANAGEMENT
Editorial:
TAYLOR & FRANCIS LTD
Referencias:
Lugar: Londres; Año: 2012 vol. 58 p. 147 - 152
ISSN:
0967-0874
Resumen:
Cutleaf teasel is a biennial, invasive weed found along roadsides throughout much of the central USA. Long-term management should, ideally, integrate chemical and cultural practices. Research in Missouri along Interstate Highway 70 was initiated to combine chemical applications with overseeding perennial grasses. A field experiment was carried out with a split-plot design (four replications), where the main plot factors was herbicide applied, and the sub-plot factor was grass species overseeded. Herbicide treatments comprised dicamba+diflufenzopyr, aminopyralid, triclopyr, and metsulfuron. Grass species included tall fescue+buffalograss or Canada wildrye+buffalograss. Cutleaf tesel coverage was reduced from 79% to 93% for all herbicide treatments except triclopyr, 5 months after the last herbicide application. Seedling counts of cutleaf teasel were lowest for aminopyralid by 6 months after the last herbicide application.  The herbicide programme that provided  > 90% cutleaf teael control and resulted in at least 65% grass establishment resulted in up to a 93% reduction in cutleaf teasel emergence by 363 days after initial herbicide application. Integration of applications of herbicide and desirable seeding grasses are needed over a long period to exclude cutleaf teasel in roadside areas.