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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
Larvae move with a looping action... Older larvae can move in large numbers into crops, resulting in severe defoliation... Check crops during establishment particularly around the perimeter of the crop or areas where capeweed is present...
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Catalogue: Broadacre Field Crops DAFF QLD
Larvae move with a looping action... Older larvae can move in large numbers into crops, resulting in severe defoliation... Check crops during establishment particularly around the perimeter of the crop or areas where capeweed is present...
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Catalogue: Broadacre Field Crops DAFF QLD
Larvae move with a looping action... Older larvae can move in large numbers into crops, resulting in severe defoliation... Check crops during establishment particularly around the perimeter of the crop or areas where capeweed is present...
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Catalogue: Broadacre Field Crops DAFF QLD
Armyworm larvae are difficult to find in cereals crops as they hide at the base of plants or under clods of soil during the day... Search at the base of plants and under clods of soil to estimate the number of larvae per square metre... Monitor for larvae at dusk with a sweep net; sweep netting during the day can be unreliable...
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Catalogue: Broadacre Field Crops DAFF QLD
Armyworm larvae are difficult to find in cereals crops as they hide at the base of plants or under clods of soil during the day... Search at the base of plants and under clods of soil to estimate the number of larvae per square metre... Monitor for larvae at dusk with a sweep net; sweep netting during the day can be unreliable...
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Catalogue: Broadacre Field Crops DAFF QLD
Microplitis is the main vector of ascovirus and so plays a key role in increasing the percentage of caterpillars affected by this disease... High levels of ascovirus may lead to a decline in Microplitis wasp populations... small pale caterpillars in unusually exposed situations (e.g. on a leaf) that look as though they have been feeding in the same place for some time, making a window in the leaf, are probably infected with ascovirus because infected caterpillars can take a long time to die, ascovirus infection in the population can show up in crop scouting data over a series of checks as a number of small caterpillars (shorter than 8 mm) in the crop, with very few medium-large caterpillars coming through...
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Catalogue: Broadacre Field Crops DAFF QLD
Microplitis is the main vector of ascovirus and so plays a key role in increasing the percentage of caterpillars affected by this disease... High levels of ascovirus may lead to a decline in Microplitis wasp populations... small pale caterpillars in unusually exposed situations (e.g. on a leaf) that look as though they have been feeding in the same place for some time, making a window in the leaf, are probably infected with ascovirus because infected caterpillars can take a long time to die, ascovirus infection in the population can show up in crop scouting data over a series of checks as a number of small caterpillars (shorter than 8 mm) in the crop, with very few medium-large caterpillars coming through...
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Catalogue: Broadacre Field Crops DAFF QLD
Microplitis is the main vector of ascovirus and so plays a key role in increasing the percentage of caterpillars affected by this disease... High levels of ascovirus may lead to a decline in Microplitis wasp populations... small pale caterpillars in unusually exposed situations (e.g. on a leaf) that look as though they have been feeding in the same place for some time, making a window in the leaf, are probably infected with ascovirus because infected caterpillars can take a long time to die, ascovirus infection in the population can show up in crop scouting data over a series of checks as a number of small caterpillars (shorter than 8 mm) in the crop, with very few medium-large caterpillars coming through...
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Catalogue: Broadacre Field Crops DAFF QLD
" Print the page Cluster caterpillars are infrequent pests in the South Burnett but are more abundant in coastal and tropical areas where serious damage has been reported from this pest... There are no insecticides registered specifically for cluster caterpillars in peanuts... Cluster caterpillars are coincidently controlled with chemical insecticides targeting helicoverpa...
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