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Catalogue: Broadacre Field Crops DAFF QLD
Adults are 0.3 mm long, have eight legs and may be straw coloured or greenish... Adults have several pairs of spots on either side of the body... Two-spotted mite and bean spider mite , although adults are about two-thirds the size of these mites...
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Catalogue: Ground Cover
To help growers deal with the infestations of multiple pests on a wide range of crops, the GRDC recently issued an advice bulletin - Managing Earth Mites ... The bulletin describes the pests in question, best practice management procedures, and sources of further information... Log in or register to leave a comment...
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Catalogue: NVT Online Papers
Early work on canola focused on weed management strategies including the breeding of herbicide tolerant canola varieties such as triazine tolerant (TT) varieties which now account for an estimated 90% of canola grown in WA... Research is still being conducted to determine the effect of these viruses on the yield of canola in WA. European work has found seed yield losses of 10-15% associated with this virus disease in canola... The amount of air passed through the grain is measured in litres per second per tonne and varies depending on the particular aeration strategy...
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Catalogue: GRDC Media
MITEY USEFUL GUIDE: The Grains Research and Development Corporation (GRDC) has released a Back Pocket Guide to assist growers in correctly identifying crop mites... Cesar entomologist Dr Paul Umina, who collaborated with GRDC in developing the guide, says mites are small in size and often go unnoticed, but are an important pest group attacking Australian grain crops. ".. The guide is designed to assist growers in identifying the most commonly observed mite species found in the southern and western cropping regions," Dr Umina said...
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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 (North)
Until such varieties are released, northern growers and advisers need to select varieties firstly on the basis of crown rot risk and then manage for stripe rust ... There is a risk of WSMV being spread through infected seed into new areas... We have not been able to determine an economic threshold for RGB in sorghum from these trials...
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Catalogue: GRDC Updates (South)
Until such varieties are released, northern growers and advisers need to select varieties firstly on the basis of crown rot risk and then manage for stripe rust ... There is a risk of WSMV being spread through infected seed into new areas... We have not been able to determine an economic threshold for RGB in sorghum from these trials...
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Catalogue: GRDC Updates
Many decisions to manage crop establishment pests should be made well before sowing when there are far more control options available... Extremely high levels of resistance to several synthetic pyrethroids (> 200,000 fold in the case of bifenthrin) were detected using laboratory bioassays, and this has translated to significant yield losses in the field... Further properties with insecticide resistance have been detected since 2010, although at this stage, resistance has not been detected outside of WA. Experts predict resistance in RLEM will spread to other states, including to Victoria...
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Catalogue: GRDC Research Summaries
They are small in size and often go unnoticed mites are one of the most important pest groups attacking Australian grain crops... There are only a few mite species considered major crop pests in Australia... Unfortunately all the mites are relatively similar in appearance and can co-exist in the same area...
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Catalogue: Ground Cover
Grain growers can use a testing service to determine if insecticide resistance exists in redlegged earth mites on their properties... Growers in the southern grains region are encouraged to use a free redlegged earth mite (RLEM) insecticide-resistance testing service made possible through a national GRDC-funded project led by the University of Melbourne, in collaboration with cesar , the Department of Agriculture and Food, Western Australia (DAFWA), CSIRO and the University of WA... Resistance to synthetic pyrethroids (SPs) is already confirmed in large populations of RLEM across the WA grainbelt, while some populations in WA also have resistance to organophosphates (OPs)...
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