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droplet size

Catalogue: Ground Cover
Weed problems dominated discussions because, as everyone at the Update knew, too many northern growers continue to use herbicides indiscriminately... The Goondiwindi Update maintained its reputation as the 'must attend' forum for grains industry research in the northern region, with an array of experienced and expert speakers and more than 270 advisers and leading growers attending... University of California spray specialist Professor Ken Giles detailed new technology that delivers variable-rate herbicide application without changing droplet size, the University of Adelaide's Dr Christopher Preston spoke on managing herbicide resistance and Nufarm Australia's Gerard Bardell on the role of the Spraywise decision-support system in finding the best conditions for spray application...
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Catalogue: NVT Online Papers
Advice concerning the significance and control of the more common pests, or potential pests, of these crops is presented... Value of the crop (high value crops cannot sustain too much damage as a small loss in yield or quality could mean a large financial loss), the cost of the spray and its application and the likely yield or quality benefit gained from control... Crop monitoring Ongoing monitoring of crops and surrounding vegetation is essential to determine the presence of both pests and predators, and when, if any, intervention is required to keep pests at an acceptable level or, if feasible, boost predator numbers by introducing them into the system...
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Catalogue: GRDC Updates (South)
Goondiwindi Grains Research Update 2006 28 thFeb & 1 stMarch 2006 100 80 60 ) 40 % 20 ( y0 t 0 i 0 100 200 300 0 100 2 0 300 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... Overall, Hotshot @ 500 mL/ha is compatible with Topik 240EC @ 85 mL/ha, with no reduction in control of wild oats... 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)
The capacity of the plant to take up potassium is not directly related to potassium in solution... Spraying is best done when there is some wind, and when the operator can be sure that wind direction has stabilised... Driftability of amine formulations The 2,4- D products Surpass and Amicide 625 which were used in the trial are considered to be nonvolatile any drift that is associated with these products will be droplet drift not vapour drift...
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Catalogue: GRDC Updates (North)
Goondiwindi Grains Research Update 2006 28 thFeb & 1 stMarch 2006 100 80 60 ) 40 % 20 ( y0 t 0 i 0 100 200 300 0 100 200 30 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... Overall, Hotshot @ 500 mL/ha is compatible with Topik 240EC @ 85 mL/ha, with no reduction in control of wild oats... 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 (North)
The capacity of the plant to take up potassium is not directly related to potassium in solution... Spraying is best done when there is some wind, and when the operator can be sure that wind direction has stabilised... Driftability of amine formulations The 2,4- D products Surpass and Amicide 625 which were used in the trial are considered to be nonvolatile any drift that is associated with these products will be droplet drift not vapour drift...
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Catalogue: GRDC Updates
" Date: 16.09.2009 NEW SPRAY TECHNOLOGY DELIVERS VARIABLE RATE APPLICATION WITHOUT A CHANGE IN DROPLET SIZE.. A valuable way to use this capability is to adjust pressure and droplet size depending on wind conditions and proximity to spray sensitive areas... Rate and speed were maintained pressure was reduced to increase droplet size while spraying north end of field...
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Catalogue: Ground Cover
US studies highlight droplet impact.. Since 1996, glyphosate has been the predominant post-emergence herbicide for weed control in maize, soybeans and cotton in the US. Due to this, glyphosate-resistant weeds have become increasingly prevalent in glyphosate-resistant crops, forcing many growers to use other herbicides... A series of studies in the US have measured the influence of carrier volume on droplet size and weed control using four different post-emergence herbicides with four different modes of action for weeds in soybeans...
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Catalogue: GRDC Updates
Applicator decisions including nozzle selection, operating pressure and spray solution components and ratios influence both efficacy and drift... Droplet size of each treatment was evaluated at the wind tunnel facility in North Platte, NE, using a diffraction laser... For each of these nozzles and spray solutions, we determined the droplet size using a low-speed wind tunnel in College Station, TX...
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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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