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Catalogue: GRDC Updates (North)
Optimising herbicide use - know your products and how they work.. Quirindi Grains Research Update 22 ndFebruary, 2006 100 80 60 ) 40 % 20 ( y0 t 0 i 0 10 200 300 0 100 200 300 r e Bravo-Quadris Folicur v e100 s e 80 s a 60 e s 40 i D 20 0 0 100 200 300 0 100 200 300 Headline Quadris Volume (L/ha) Ascochyta disease severity on Yuma (fern leaf type - Kabuli) with four fungicides and three carrier volumes @ 2.75 bar... In summary The work we have undertaken over the past five years conforms to the UK/Western European production systems when grown under irrigated conditions in Australia...
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Catalogue: GRDC Updates (South)
Optimising herbicide use - know your products and how they work.. Quirindi Grains Research Update 22 ndFebruary, 2006 100 80 60 ) 40 % 20 ( y0 t 0 i 0 100 200 3 0 0 100 200 300 r e Bravo-Quadris Folicur v e100 s e 80 s a 60 e s 40 i D 20 0 0 100 200 300 0 100 200 300 Headline Quadris Volume (L/ha) Ascochyta disease severity on Yuma (fern leaf type - Kabuli) with four fungicides and three carrier volumes @ 2.75 bar... In summary The work we have undertaken over the past five years conforms to the UK/Western European production systems when grown under irrigated conditions in Australia...
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Catalogue: GRDC Updates
Many grain growers that have planted crops such as chickpea using a one metre row configuration have turned off every second nozzle on the boom (based on a boom with standard 50cm nozzle spacing) and called this a 50% band for spraying insecticides and fungicides... In theory applying a 50% band would allow them to use half the amount of product that would have been required to spray the entire paddock using a traditional broad-acre boom set-up with every nozzle turned on... Many operators wanting to apply 50% bands to crops such as chickpeas could benefit from utilising narrower nozzle spacing's (such as 25 cm) and using 2 nozzles per row, with the nozzles offset from the plant row and the spray directed at the crop from either side...
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Catalogue: GRDC YouTube channel
" GCTV14: DRT - App for Spray Applicators 25 July 2014 Andrew Hewitt explains how an Australian research facility focused on Drift Reducing Technologies is collaborating with international partners to develop a spray application App for mobile devices... 16.34: Located at Gatton this modest looking lab is one of only three research facilities focused 21.84: on DRTs or Drift Reducing Technologies... 86.7: Narrator: Chemical companies are also making use of 89.78: the research findings, factoring them into their own product research and producing new 94.67: formulations with DRTs built in. 97.64: Andrew Hewitt: Yeah the new formulations that have been developed 100.96: by several companies both the pesticide and the adjuvants that go with them are really 106.45: helping to get better performance in the field...
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Catalogue: Nuffield Scholar Reports
I am the principle spray operator and, like the vast majority of broad acre farmers, I regularly apply pesticides including herbicides, insecticides and fungicides to control weeds, insects and crop disease... Pesticides are widely used in agriculture to control weeds, insects and crop disease, reducing labour, energy and water requirements, and optimising potential crop yield and ultimately farm income... The overall objective of the project was to promote the adoption of the best practice spray application process by engaging key stakeholders (including government, chemical and spray applicator manufacturers, researchers, farmers and spray operators) and by applying principles from around the world on ways to simplify pesticide application whilst maximising pesticide efficacy and field efficiency, and sustaining the environment...
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Catalogue: GRDC Updates
As farmers today I believe we are making some decisions that may lead to increased drift risk... The APVMA direction is placing more pressure on the person applying the pesticide by requiring the applicator to conduct a risk assessment on sprayer set up, the weather conditions and the surrounding downwind environment and to ultimately decide to spray or not... If we are to maintain market access in these markets, we must be looking at these changes and trends with a view to develop a self regulated practical approach to reduce the need for further regulations...
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Catalogue: GRDC Media
"The research is investigating a range of spray application issues, including the best combination of nozzles, spray pressures and pesticide formulations to minimise drift and optimise efficacy," Dr Young said... "The GRDC is funding research on spray drift reduction technology because we want to ensure any new buffer zone requirements are based on the latest technology and, importantly, Australian conditions," Dr Young said... Dr Young said the focus of the new training project would be to continue to raise awareness of spraying best practice and to increase the number of skilled people who can provide quality information and training to growers...
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Catalogue: GRDC Research Summaries
The Services are to increase awareness by growers, advisers, machinery dealers and trainers (primary information providers) in the Northern and Southern grain growing regions of the factors that contribute to spray drift and the tools and techniques available to minimise the potential for spray drift to occur without significantly impacting on product efficacy by: 1) Developing and updating resources and training materials for spray drift management courses and to the GRDC to include the most current information available for spray..... Avoid spray drift by recognising unsafe conditions.. Recognition of conditions that lead to a surface temperature inversion is particularly important as the potential for spray drift is high when this occurs, according to industry authorities...
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Catalogue: GRDC Media
Time and execute your fungicide sprays right and you'll get maximum impact from each treatment, according to spray application experts Bill Gordon and Dr Rohan Rainbow... Have an understanding of how the fungicide you're going to apply works on the plant - most fungicides have limited translocation potential or move upwards and outwards only, meaning sprayers need to target the spray to hit the plant exactly where it's needed... Run the controller with total flow (litres per minute for the whole boom) on the display when spraying and know what the pressure and flow rate should be when delivering the correct number of litres per hectare so that checks can be made as you go, e.g. if pressure increases and flow remains the same, check for blockages...
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Catalogue: GRDC Factsheets
if a product has 'curative' properties, often the best result will be achieved by ensuring sprays not only reach the plant parts requiring protection (such as new growth), but also the source of the infection (which may be on lower parts of the plant)... Ways of maintaining spray quality include: using nozzles that produce the same spray quality throughout their pressure range; using systems that maintain droplet size, such as pulse width modulation (for example, the aim command system); and using controller functions such as the minimum hold or lower limit to prevent excessive pressure drops when reducing speed while ensuring overdosing is minimised... often i want to apply a herbicide at the same time as a fungicide or insecticide...
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