Integrated Pest Management
Major Funded projects
Resistance and Pathogen Virulence in the canola:blackleg pathosystem

Identification of molecular markers for blackleg resistance in canola

Use of Molecular Markers to Enhance the Efficiency of Oilseed Brassica Breeding

Forecasting Sclerotinia Stem Rot in Australia

Biocontrol of saffron thistle

Development of a mycoherbicide for Asteraceae weeds

Sustainable starfruit control using a mycoherbicide to avoid development of chemical herbicide resistance

Molecular mode of action of a new fungicide for the control of Botrytis

The production, germinability and infectivity of survival structures of Rhynchosporium alismatis, a candidate mycoherbicide for the control of Alisma lanceolatum and Damasonium minus in rice

Development of integrated weed control strategies for the rice weeds Cyperus difformis and Alisma plantago-aquatica

Assessing allelopathy risks in conservation farming systems

Weed resistance to the knockdown herbicides glyphosate, paraquat and diquat in cropping systems

Evaluation of glyphosate resistance in annual ryegrass

Morphological and physiological changes in Trifolium subterraneum induced by applications of broadleaf herbicides

Study of the Biology of Fumitory (Fumaria spp)

Biology of arrowhead (Sagittaria montevidensis)

Weed Control in Forage Legumes

Herbicide carryover in crop stubble

Long term investigations of the effect of tillage practices on crop production at Wagga Wagga, NSW

Morphological and physiological changes in Trifolium subterraneum induced by applications of broadleaf herbicides

Research Supervisors:
Dr Brian Dear, Professor Jim Pratley

Research Staff:
Mr Graeme Sandral

Funding:
NSW Agriculture

Project Summary:
Subterranean clover (Trifolium subterraneum) is the dominant pasture legume within ley-farming systems in southern Australia. It is a high protein food supply for grazing livestock and a source of nitrogen for companion pasture grasses or for subsequent crops. Often imbalances within the pasture phase result in the invasion of broad-leaved weeds. The cost incurred from broad-leaved weeds in pastures has been estimated to be $61 million per annum (Anon 1988). Hence, herbicides are frequently used to avoid competition losses resulting from the invasion of broad-leaved weeds.

The research was undertaken to examine the herbicide tolerance of subterranean clover and possible differential tolerance between cultivars. The response of subterranean clover to broadleaf herbicides was examined mainly through measurements of dry matter production, seed yield and nodulation. Five field experiments and one glasshouse experiment were conducted to investigate these responses.