Sustainable glyphosate use in winter grain cropping systems in southern Australia
The number of glyphosate resistant weed species present in winter grain crops, along fencelines and in irrigation channels in Australia. You can reduce the risk of glyphosate resistance in weeds if you follow the recommended practices in this factsheet.
Sustainable glyphosate use in Australian vegetable production
The number of glyphosate resistant weed species present in Australian vegetable production systems is increasing. You can reduce the risk of glyphosate resistance in weeds if you follow the recommended practices in this factsheet.
Sustainable glyphosate use on roadsides, railways, public utilities and parks
The number of glyphosate resistant weed species present on Australian roadsides and railway lines is increasing. You can reduce the risk of glyphosate resistance in weeds if you follow the recommended practices in this factsheet.
Sustainable glyphosate use in Australian orchards and vineyards
The number of glyphosate resistant weed species present in Australian orchards and vineyards is increasing. You can reduce the risk of glyphosate resistance in weeds if you follow the recommended practices in this factsheet.
Sustainable glyphosate use in northern Australian grain and cotton systems
The number of glyphosate resistant weed species present in northern Australian grain and cotton systems is increasing. You can reduce the risk of glyphosate resistance in weeds if you follow the recommended practices in this factsheet.
Farm Business Management Factsheet
Key points Effective decision-making is at the core of successful farm business management. Making informed, logical and timely business decisions is crucial to achieving business objectivess. Understand the different elements that influence how decisions are made and the possible outcomes. Consider who is responsible for the final decisions in the different areas of your farm business. Ensure the decision is finalised and implemented in a timely manner. Want to link to this fact sheet/publication? Full article can be found here
Wild radish management and strategies to address herbicide resistance
Wild radish (Raphanus raphanistrum) is one of the most widespread and competitive broadleaf weeds of Australian cereal-growing regions. Increasing resistance to multiple herbicide modes of action is forcing growers to adopt diverse and integrated weed-control strategies to deal with this weed.
Common weeds of grain cropping
GRDC's 'The Common Weeds of Grain Cropping – The Ute Guide' aims to help growers, advisers, researchers and students to identify the most common weeds of grain cropping systems in Australia.
Northern IWM factsheet – common sowthistle
Common sowthistle (Sonchus oleraceus L.), also known as milk thistle, is a dicotyledonous annual weed. The plants are erect and fleshy and possess hollow, smooth stems that exude a milky latex when damaged. The weed can grow up to 1.5 m in height. Plants of common sowthistle can be either present as a rosette or upright in their growth form. Its leaves may vary in colour and the amount of serration on their margins (Figure 1). Common sowthistle seeds possess a pappus, which helps in seed dispersal through the wind.
Windmill grass – Northern Region
Windmill grass (Chloris truncata R.Br.), also known as umbrella grass or blow-away grass, is a short-lived perennial species that has recently been identified as resistant to glyphosate. This weed is becoming more dominant in southern Australian farming systems and is steadily encroaching on Queensland. To better manage this key weed, we need to understand its ecology and what management tactics are effective for its control.
Mixing requirements for spraying operations
Mixing order is very important to ensure that tank mixed products perform to their potential. Understanding formulation type and adjuvant type are an important part of getting the mixing order right. If in doubt about the compatibility of products in a tank mix, contact the manufacturers and conduct a jar test to ensure they will mix. Key Points Understand what the formulation type is for each product and adjuvant being used. Never bring concentrated products into contact with each other through mixing equipment or in low tank volumes. Know the correct mixing order for every tank mix you use.
Alternative second knock herbicides for broadleaf weeds in fallow – are there other options?
Unfortunately, these approaches have added cost, complexity and scheduling issues to weed management programs but have been required for two main reasons: To control herbicide-resistant weed populations, that may have been selected by prolonged use of a similar mode of action chemistry; and Control of weed species or stages that are unsuccessfully controlled with single herbicide applications. Paraquat has been the key active ingredient used in the second knock situation and can provide effective management of a wide range of grass and broadleaf weeds. However, it is clear we require other options to use in this management window to: Avoid the more rapid selection of paraquat resistance; and Provide options that may improve weed control in situations where paraquat efficacy is not adequate. Since winter 2016, NGA has been screening a range of herbicides, to identify options that have the potential for this usage pattern. The two key broadleaf weeds being targeted are common sowthistle (Sonchus oleraceus) and flaxleaf fleabane (Conyza bonariensis).