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Catalogue: Broadacre Field Crops DAFF QLD
Ascovirus-infected larvae are small, pale and can look as though they have been grazing in one place, leaving small 'windows' in the leaf State of Queensland.. Some predators found commonly in crops will not feed on helicoverpa at all and some may only feed on certain stages (for example, larvae of a particular size, or only eggs)... Natural enemies will rarely eradicate all eggs or larvae, but may reduce infestations to below economic threshold if predators and parasitoids are not disrupted by broad-spectrum insecticides...
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Catalogue: Broadacre Field Crops DAFF QLD
Ascovirus-infected larvae are small, pale and can look as though they have been grazing in one place, leaving small 'windows' in the leaf State of Queensland.. Some predators found commonly in crops will not feed on helicoverpa at all and some may only feed on certain stages (for example, larvae of a particular size, or only eggs)... Natural enemies will rarely eradicate all eggs or larvae, but may reduce infestations to below economic threshold if predators and parasitoids are not disrupted by broad-spectrum insecticides...
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Catalogue: Broadacre Field Crops DAFF QLD
Soybeans can be attacked by pests at any stage from seedlings to close to harvest, but are most attractive from flowering onwards... Soybeans set a large number of reserve pods and can compensate for insect damage during early podding by diverting energy to fill these reserve pods... Late bug damage is a major factor affecting seed quality...
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Catalogue: Broadacre Field Crops DAFF QLD
Soybeans can be attacked by pests at any stage from seedlings to close to harvest, but are most attractive from flowering onwards... Soybeans set a large number of reserve pods and can compensate for insect damage during early podding by diverting energy to fill these reserve pods... Late bug damage is a major factor affecting seed quality...
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Catalogue: Broadacre Field Crops DAFF QLD
Soybeans can be attacked by pests at any stage from seedlings to close to harvest, but are most attractive from flowering onwards... Soybeans set a large number of reserve pods and can compensate for insect damage during early podding by diverting energy to fill these reserve pods... Late bug damage is a major factor affecting seed quality...
Related categories:
Catalogue: Broadacre Field Crops DAFF QLD
The best approach to managing helicoverpa is to use a combination of both chemical and non-chemical tools... By considering the ecology of H. armigera and H. punctigera , several key principles emerge that will assist in the successful and sustainable management of these pests... Insect-resistant genetically modified (GM) cotton has been developed to produce a highly specific toxin that kills helicoverpa larvae that feed on the cotton plant...
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Catalogue: Broadacre Field Crops DAFF QLD
The best approach to managing helicoverpa is to use a combination of both chemical and non-chemical tools... By considering the ecology of H. armigera and H. punctigera , several key principles emerge that will assist in the successful and sustainable management of these pests... Insect-resistant genetically modified (GM) cotton has been developed to produce a highly specific toxin that kills helicoverpa larvae that feed on the cotton plant...
Related categories:
Catalogue: Broadacre Field Crops DAFF QLD
The best approach to managing helicoverpa is to use a combination of both chemical and non-chemical tools... By considering the ecology of H. armigera and H. punctigera , several key principles emerge that will assist in the successful and sustainable management of these pests... Insect-resistant genetically modified (GM) cotton has been developed to produce a highly specific toxin that kills helicoverpa larvae that feed on the cotton plant...
Related categories:
Catalogue: Broadacre Field Crops DAFF QLD
Normal helicoverpa egg on left, black parasitised egg on right.. H. armigera has developed resistance to a wide range of insecticides a number of products are now registered for both species that have reduced impacts on natural enemies in the crop... All stages of the helicoverpa lifecycle are attacked by a wide range of predators, parasitoids and pathgens, and conserving these in the crop through the avoidance of broad-spectrum insecticides can help prevent/minimise the need for insecticide treatments...
Related categories:
Catalogue: Broadacre Field Crops DAFF QLD
Normal helicoverpa egg on left, black parasitised egg on right.. H. armigera has developed resistance to a wide range of insecticides a number of products are now registered for both species that have reduced impacts on natural enemies in the crop... All stages of the helicoverpa lifecycle are attacked by a wide range of predators, parasitoids and pathgens, and conserving these in the crop through the avoidance of broad-spectrum insecticides can help prevent/minimise the need for insecticide treatments...
Related categories:

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