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spray failure

Catalogue: GRDC Factsheets
Green peach aphid has developed resistance to more insecticides than any other insect species... neonicotinoids are also quite commonly applied to a variety of Australian vegetable crops and are becoming widespread in grains crops as a seed dressing... The most recent survey funded through the gRdC, conducted in 2013, has found widespread and high levels of resistance to carbamates (pirimicarb) and synthetic pyrethroids (alpha-cypemethrin) across Australia...
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Catalogue: GRDC Factsheets
Green peach aphid has developed resistance to more insecticides than any other insect species... neonicotinoids are also quite commonly applied to a variety of Australian vegetable crops and are becoming widespread in grains crops as a seed dressing... The most recent survey funded through the gRdC, conducted in 2013, has found widespread and high levels of resistance to carbamates (pirimicarb) and synthetic pyrethroids (alpha-cypemethrin) across Australia...
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Catalogue: GRDC Media
To avoid insecticide spray failures and prevent or delay the development of resistance, it is recommended that growers use a broad range of Integrated Pest Management (IPM) strategies... Department of Agriculture and Food (DAFWA) entomologist Svetlana Micic said an IPM approach involved correctly identifying the problem insect pest; monitoring pest numbers; and assessing damage to crop plants... "Growers can also prevent spray failures by choosing control strategies based on economic thresholds; spraying only when necessary; and rotating insecticides across different chemical classes/modes of action," she said...
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Catalogue: GRDC Factsheets
" Revised July 2015 Resistance ManageMent stRategyfoRthegReenpeach aphid in austRalian gRains Key points Green peach aphids (GPA) are a widespread and damaging pest of canola and a range of pulse crops, causing damage by feeding and transmitting viruses... Five chemical subgroups are registered to control GPA in grain crops: carbamates (Group 1A); synthetic pyrethroids (Group 3A); organophosphates (Group 1B); neonicotinoids (Group 4A); and sulfoxaflor (Group 4C)... A strategy to manage insecticide resistance in GPA populations is available for use by grain growers and their advisers...
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Catalogue: GRDC Factsheets
" August 2014 Resistance ManageMent stRategyfoRthegReenpeach aphid in austRalian gRains Key points Green peach aphids (GPA) are a widespread and damaging pest of canola and a range of pulse crops, causing damage by feeding and transmitting viruses... Moderate levels of resistance to organophosphates have been observed in many populations, and there is evidence that resistance to neonicotinoids is evolving... A strategy to manage insecticide resistance in GPA populations is available for use by grain growers and their advisers...
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Catalogue: GRDC Factsheets
" Revised July 2015 Resistance ManageMent stRategyfoRthegReenpeach aphid in austRalian gRains Key points Green peach aphids (GPA) are a widespread and damaging pest of canola and a range of pulse crops, causing damage by feeding and transmitting viruses... A strategy to manage insecticide resistance in GPA populations is available for use by grain growers and their advisers... Other general recommendations include: assess aphid and beneficial populations over successive checks to determine if chemical control is warranted; use economic spray thresholds where available; where GPA is colonising crop margins in the early stages of population development, consider a border spray with an insecticide to prevent/delay the build-up of GPA and to retain beneficial insects; avoid repeated applications of products from the same insecticide group on GPA and other pests in the same paddock;..
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Catalogue: GRDC Factsheets
" Revised July 2015 Resistance ManageMent stRategyfoRthegReenpeach aphid in austRalian gRains Key points Green peach aphids (GPA) are a widespread and damaging pest of canola and a range of pulse crops, causing damage by feeding and transmitting viruses... A strategy to manage insecticide resistance in GPA populations is available for use by grain growers and their advisers... Other general recommendations include: assess aphid and beneficial populations over successive checks to determine if chemical control is warranted; use economic spray thresholds where available; where GPA is colonising crop margins in the early stages of population development, consider a border spray with an insecticide to prevent/delay the build-up of GPA and to retain beneficial insects; avoid repeated applications of products from the same insecticide group on GPA and other pests in the same paddock;..
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