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insecticide resistance

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Catalogue: GRDC Media
Grain growers in the southern cropping region can now access a new testing service to determine if insecticide resistance exists within populations of redlegged earth mite (RLEM) on their properties... Project leader, Dr Paul Umina, says identification of the gene mutation responsible for pyrethroid resistance has enabled researchers at CSIRO to devise a new cost-effective DNA test which requires fewer mite numbers per test and has greater population screening capacity than previous testing services... To discuss suspected resistance and to facilitate collection of samples for testing, growers in SA, Victoria, NSW and Tasmania are encouraged to contact Paul Umina of the University of Melbourne (phone 03 9349 4723, email pumina@unimelb.edu.au ) in the first instance...
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Catalogue: GRDC Media
Canola virus test results help to map extent of infection.. The Victorian Department of Environment and Primary Industries (DEPI) testing laboratory has tested thousands of plants and results to date have provided a clear picture of where infection has occurred... Check for the build-up of numbers and the production of significant numbers of winged aphids in a population, which signals that flights may be about to occur," said Dr Umina, who is leading GRDC-funded research into insecticide resistance in GPA...
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Catalogue: GRDC Media
Grain growers in the southern cropping region can now access a new testing service to determine if insecticide resistance exists within populations of redlegged earth mite (RLEM) on their properties... Project leader, Dr Paul Umina, says identification of the gene mutation responsible for pyrethroid resistance has enabled researchers at CSIRO to devise a new cost-effective DNA test which requires fewer mite numbers per test and has greater population screening capacity than previous testing services... To discuss suspected resistance and to facilitate collection of samples for testing, growers in SA, Victoria, NSW and Tasmania are encouraged to contact Paul Umina of the University of Melbourne (phone 03 9349 4723, email pumina@unimelb.edu.au ) in the first instance...
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Catalogue: GRDC Media
Researchers are seeking input from farmers and advisers to assist with their ongoing investigations into insecticide resistance in broadacre agricultural pests... Entomologists engaged in research projects funded by the Grains Research and Development Corporation (GRDC) are searching for locations where growers have experienced chemical control difficulties or failures when dealing with insect pests, particularly mites and aphids... We are keen to map the geographical spread of the problem throughout Australia's cropping and pasture regions," Dr Umina says...
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Catalogue: GRDC 2014 Research Summaries
The rising incidence of insecticide resistance in invertebrate grains pests is concerning, particularly at a time when access to several active compounds is being threatened... Several important pests have developed resistance due to the over-use and heavy reliance on agri-chemicals... GPAC will act as a think-tank and will be sufficiently resourced through the appointment of an Executive Officer at the University of Melbourne so that issues around resistance management, knowledge gaps and control opportunities are tackled in a rigorous manner rather than as a reaction to issues that arise within a particular season...
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Catalogue: GRDC Media
Research delves into growing issue of insecticide resistance Insecticide resistance in several broad-acre agricultural pests across southern Australia is being investigated through a research project supported by the Grains Research and Development Corporation (GRDC)... For example, insecticide resistance in redlegged earth mites to synthetic pyrethroids was first discovered in Australia only a few years ago on a property in Western Australia, and since then this resistance has spread across 15 different properties, spanning a distance of 450.. Dr Umina said that to develop management strategies aimed at limiting the widespread development of resistance in these pests, a better understanding of the spread and frequency of insecticide resistance throughout cropping and pasture regions across southern Australia was needed...
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Catalogue: Broadacre Field Crops DAFF QLD
Note the banded antennae - the antennae of the green mird nymph are reddish brown on the tips only... Mirids are known to feed on cotton, lucerne, mungbeans, navy beans, peanut and soybeans... The primary movement of mirids into summer crops occurs during November as alternative host plants within the vicinity of cotton crops tend to dry off and insects seek a fresh food source...
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Catalogue: Broadacre Field Crops DAFF QLD
Note the banded antennae - the antennae of the green mird nymph are reddish brown on the tips only... Mirids are known to feed on cotton, lucerne, mungbeans, navy beans, peanut and soybeans... The primary movement of mirids into summer crops occurs during November as alternative host plants within the vicinity of cotton crops tend to dry off and insects seek a fresh food source...
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Catalogue: Broadacre Field Crops DAFF QLD
Note the banded antennae - the antennae of the green mird nymph are reddish brown on the tips only... Mirids are known to feed on cotton, lucerne, mungbeans, navy beans, peanut and soybeans... The primary movement of mirids into summer crops occurs during November as alternative host plants within the vicinity of cotton crops tend to dry off and insects seek a fresh food source...
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Catalogue: GRDC Media
DAFWA is increasing its testing of mites for resistance to organophosphate insecticides, as well as for resistance to synthetic pyrethroids.. Growers who notice any instances of insecticides failing to control redlegged earth mites (RLEM) this season are encouraged to arrange for the pests to be tested... Department of Agriculture and Food (DAFWA) entomologist Svetlana Micic encouraged growers to notify her if they suspected RLEM had survived registered rates of insecticides, so arrangements could be made to have samples of mites tested for resistance...
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