Studies of competition between Nassella trichotoma (Nees) Hack. ex Arechav. (serrated tussock) and native pastures. 1. Adult plants.

Warwick Badgery, David Kemp, D L Michalk, W McG King

Research output: Contribution to journalArticlepeer-review

8 Citations (Scopus)

Abstract

Nassella trichotoma (serrated tussock) is a hardy perennial grass weed that rapidly invades disturbed areas. Pasture competition is an important component of an integrated weed-management system for native pastures. This paper reports on a field experiment to ascertain the level of competition from native grasses for adult N. trichotoma plants. Native grasses prevented N. trichotoma plants from increasing in biomass and basal area when rotationally grazed or when grazing was removed and fertiliser was withheld. Smaller N. trichotoma plants (<500mm2) were more likely to vary in size with very little change in larger plants. Flupropanate efficiently killed all N. trichotoma plants but caused considerable damage to perennial native species, resulting in an uncompetitive pasture dominated by broadleaf weeds.
Original languageEnglish
Pages (from-to)226-236
Number of pages11
JournalCrop and Pasture Science
Volume59
Issue number3
DOIs
Publication statusPublished - 2008

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