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post emergence herbicide

Catalogue: GRDC Publications
The important factors in getting pre-emergent herbicide to work effectively while minimising crop damage are: to understand the position of the weed seeds in the soil; the soil type (particularly amount of organic matter and crop residue on the surface); the solubility of the herbicide; and its ability to be bound by the soil... Weed seeds will most likely absorb herbicide if the herbicide is at or below the seed in the soil profile... Only some of the mutations provide resistance to both groups of herbicides...
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Catalogue: GRDC Publications
Weed seeds will most likely absorb herbicide if the herbicide is at or below the seed in the soil profile... Triallate needs to be situated at or above the weed seed to be effective... It is c4 u recommended that a preliminary compatibility test (jar d3 e 0 Tordon* ^^ R test) be carried out prior to the use of any tank mix t 20 with AXIAL n Velocity* e1 Please refer to the label of the product being tank c 0 r e mixed for rates and constraints P 0 GS39 GS47 - 49 GS61 - 65 Product labels and usage directions should be followed for the application of any product referred to in this Avena Growth Stage at Application publication...
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Catalogue: GRDC Updates
A great proportion of the solutions to our problems are still herbicide based and in the future will lead to other herbicide resistance problems... Paddock screening trials done by DPI, at a known resistance site, showed poor efficacy from group B products but very good results from those products containing group H (Precept and Velocity )... Interim results from the survey work indicate that another two populations have similar tolerances to glyphosate as those discussed above...
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Catalogue: Ground Cover
Consider using only post-emergence herbicides when controlling weeds in mouldboard ploughed soils for some years after ploughing.. Mouldboard ploughing can affect the phytotoxicity of soil-active herbicides and hinder crop germination, research is finding.. Researchers Derk Bakker and Grey Poulish from the Department of Agriculture and Food, Western Australia (DAFWA), at Albany say several trials stood out because of the substantive failure of seed to germinate where cereals and canola were sown in the mouldboard ploughed plots on white sand and on coarse sandy gravel...
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Catalogue: Ground Cover
Consider using only post-emergence herbicides when controlling weeds in mouldboard ploughed soils for some years after ploughing.. Mouldboard ploughing can affect the phytotoxicity of soil-active herbicides and hinder crop germination, research is finding.. Researchers Derk Bakker and Grey Poulish from the Department of Agriculture and Food, Western Australia (DAFWA), at Albany say several trials stood out because of the substantive failure of seed to germinate where cereals and canola were sown in the mouldboard ploughed plots on white sand and on coarse sandy gravel...
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Catalogue: GRDC Updates
The cropping area west of the Warrumbungle ranges has many challenges, in the form of herbicide resistance... Trial results showed that inter-row spraying of Gramoxone in wide row chickpeas could be useful, if it were to be registered for this use. . The same principles apply to canola which enables the inclusion of atrazine trifluralin, Avadex Xtra and Dual Gold... Double knock on glyphosate resistant plants: In March 2007, the first experiment (at Bellata) conducted on glyphosate resistant barnyard grass investigated basic combinations of glyphosate followed by either paraquat or Spray...
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Catalogue: GRDC Updates
Strategies for optimising the life of Group A herbicides and patterns of herbicide resistance in wild oats and annual ryegrass... Our goal is to delay or prevent this from happening in northern NSW... The inclusion of Mataven in the list of herbicides is essential if wild oats are to be tested because it can be applied late post-emergence in wheat crops to prevent wild oat seed set and is a Group Z herbicide - could be a vital tool in herbicide resistance management - but it has a history of often being cross resistant with Group A resistance...
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Catalogue: GRDC Updates
Options for using more residual herbicides in northern no-till systems.. The list of herbicides that achieved very high levels of control (> 95%) from two replicated experiments were; Dual Gold, Flame, Spinnaker and high registered rates of atrazine (Table 1)... The results presented in this paper originated from various projects funded by GRDC and Industry and Investment NSW...
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