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Catalogue: Broadacre Field Crops DAFF QLD
Photograph of Cotton aphids showing variations in colour - some yellow and some black.. Image showing leaf distortion damage caused by cotton aphids.. The cotton aphid may be troublesome during the seedling stage when its feeding may result in plants being stunted...
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Catalogue: Broadacre Field Crops DAFF QLD
Adult oat or wheat aphid, parasitised mummy with healthy aphid.. Aphids can affect any crop stage but are unlikely to cause economic damage to cereal crops expected to yield less than three tonne per hectare... Chemical control: Apply a foliar insecticide in late winter or spring to avoid direct damage to tillers and heads...
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Catalogue: Broadacre Field Crops DAFF QLD
Adult oat or wheat aphid, parasitised mummy with healthy aphid.. Aphids can affect any crop stage but are unlikely to cause economic damage to cereal crops expected to yield less than three tonne per hectare... Chemical control: Apply a foliar insecticide in late winter or spring to avoid direct damage to tillers and heads...
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Catalogue: Broadacre Field Crops DAFF QLD
Adult oat or wheat aphid, parasitised mummy with healthy aphid.. Aphids can affect any crop stage but are unlikely to cause economic damage to cereal crops expected to yield less than three tonne per hectare... Chemical control: Apply a foliar insecticide in late winter or spring to avoid direct damage to tillers and heads...
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Catalogue: Broadacre Field Crops DAFF QLD
Cowpea aphids inject toxins into the plant while feeding; they most likely reduce mungbean vigour and yields... Cowpea aphid can cause damage as a vector of virus diseases in winter pulses in southern Australia... Inspect crop and sample leaves for winged aphids from early winter onwards and for aphid colonies in spring and early summer...
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Catalogue: Broadacre Field Crops DAFF QLD
Cowpea aphids inject toxins into the plant while feeding; they most likely reduce mungbean vigour and yields... Cowpea aphid can cause damage as a vector of virus diseases in winter pulses in southern Australia... Inspect crop and sample leaves for winged aphids from early winter onwards and for aphid colonies in spring and early summer...
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Catalogue: Broadacre Field Crops DAFF QLD
Cowpea aphids inject toxins into the plant while feeding; they most likely reduce mungbean vigour and yields... Cowpea aphid can cause damage as a vector of virus diseases in winter pulses in southern Australia... Inspect crop and sample leaves for winged aphids from early winter onwards and for aphid colonies in spring and early summer...
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Catalogue: GRDC Updates
Double Knock This involves an initial treatment with Glyphosate + hormone, followed 10 days later by an application of Paraquat (Gramoxone )... 14 day interval is preferable to 7, if 10 days can't be achieved, as this allows adequate time for the hormone to work within the plant, as well as providing an opportunity to pick up subsequent germinations of weeds 2... Initial chemical treatments were applied and sheep were allowed to graze on the site (around 15 DSE/ha), further treatments were applied post-grazing, including a follow up application of Gramoxone on part of the initial chemical treatments...
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Catalogue: Broadacre Field Crops DAFF QLD
Previously referred to in Australia as Lamprosema abstitalis ... Older larvae are shiny green with pale brown heads and reach 14 mm in length... Pesticides effective against Helicoverpa (except helicoverpa virus) will most likely give control of legume webspinner...
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Catalogue: Broadacre Field Crops DAFF QLD
Previously referred to in Australia as Lamprosema abstitalis ... Older larvae are shiny green with pale brown heads and reach 14 mm in length... Pesticides effective against Helicoverpa (except helicoverpa virus) will most likely give control of legume webspinner...
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