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resistant insect

Catalogue: GRDC Media
Western Australian growers storing grain for seed or sale are encouraged to attend regional workshops following the detection and eradication of grain storage insects with strong phosphine resistance in the Central Midlands region... "The insects were eradicated by a team led by DAFWA entomologist Rob Emery and grain storage consultant Chris Newman, as part of this project supported by the GRDC and the Plant Biosecurity Cooperative Research Centre (PBCRC)," he said... "Phosphine resistance occurs through using phosphine in seed and storage silos that are not adequately sealed to meet the Australian standard," he said...
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Catalogue: GRDC Media
Western Australian growers storing grain for seed or sale are encouraged to attend regional workshops following the detection and eradication of grain storage insects with strong phosphine resistance in the Central Midlands region... "The insects were eradicated by a team led by DAFWA entomologist Rob Emery and grain storage consultant Chris Newman, as part of this project supported by the GRDC and the Plant Biosecurity Cooperative Research Centre (PBCRC)," he said... "Phosphine resistance occurs through using phosphine in seed and storage silos that are not adequately sealed to meet the Australian standard," he said...
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Catalogue: GRDC Updates
The work was initiated because of the ease with which grain insects became resistant to protectants and also because high levels of resistance to phosphine had been reported from India and Bangladesh... , some level of resistance had already been detected in insects from Australia... The method used has been to collect samples of insects from farms, central storages and grain merchant premises...
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Catalogue: Ground Cover
Effective phosphine fumigation takes time.. Most growers at some time will have used phosphine, sold as phostoxin or fumitoxin, to keep grain free of live insects as it is inexpensive, controls all pests (if used correctly) and is accepted by international markets... Phosphine in resistant insects takes a lot longer to work...
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Catalogue: Ground Cover
Effective phosphine fumigation takes time.. Most growers at some time will have used phosphine, sold as phostoxin or fumitoxin, to keep grain free of live insects as it is inexpensive, controls all pests (if used correctly) and is accepted by international markets... Phosphine in resistant insects takes a lot longer to work...
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Catalogue: Ground Cover
A recent study by American ecologists has found that GM insect-resistant crops containing a gene from a soil bacterium, Bacillus thuringiensis (Bt), which allows them to produce an insect toxin, are still effective 15 years after they were first commercialised... According to the study, hardly any resistant pests have been found, and the resistance management strategy practised has proven successful... The management strategies are based on two key elements: first, the plants need to produce enough Bt protein to kill pests with low levels of resistance (high dose); second, refuge areas must be planted near Bt crops...
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Catalogue: Ground Cover
In Australia, more than 80 per cent of all stored grain is treated with phosphine, which means it is the chemical most in contact with insects, creating the greatest chance for insects to develop resistance... Two projects under the CRC for National Plant Biosecurity are looking at the genetics of insect resistance to phosphine to understand the development of resistance and to rapidly identify resistant insects... One of the greatest threats to emerge is the development of resistance to phosphine in the lesser grain borer (Rhyzopertha dominica), one of the most common pests of stored grain...
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Catalogue: Broadacre Field Crops DAFF QLD
About 80% of Australia s cereal grains are treated by phosphine fumigation... Some Australian silo manufacturers have already reported a marked increase in demand for such silos from grain growers in recent years... Recent research has highlighted the efficacy of spinosad (Conserve ) as a protectant insecticide for control of lesser grain borer in stored grain...
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Catalogue: Broadacre Field Crops DAFF QLD
About 80% of Australia s cereal grains are treated by phosphine fumigation... Some Australian silo manufacturers have already reported a marked increase in demand for such silos from grain growers in recent years... Recent research has highlighted the efficacy of spinosad (Conserve ) as a protectant insecticide for control of lesser grain borer in stored grain...
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Catalogue: Broadacre Field Crops DAFF QLD
About 80% of Australia s cereal grains are treated by phosphine fumigation... Some Australian silo manufacturers have already reported a marked increase in demand for such silos from grain growers in recent years... Recent research has highlighted the efficacy of spinosad (Conserve ) as a protectant insecticide for control of lesser grain borer in stored grain...
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