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Catalogue: NVT Online Papers
Advice concerning the significance and control of the more common pests, or potential pests, of these crops is presented... Value of the crop (high value crops cannot sustain too much damage as a small loss in yield or quality could mean a large financial loss), the cost of the spray and its application and the likely yield or quality benefit gained from control... Crop monitoring Ongoing monitoring of crops and surrounding vegetation is essential to determine the presence of both pests and predators, and when, if any, intervention is required to keep pests at an acceptable level or, if feasible, boost predator numbers by introducing them into the system...
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Catalogue: Broadacre Field Crops DAFF QLD
Seed dressings to combat soil insects are now commonly available and may be the most effective control as well as the least disruptive to natural enemies... Natural enemies of helicoverpa include predators of eggs, larvae and pupae, parasites of eggs and larvae and caterpillar diseases... Control may be more difficult in high-yielding thick canopy crops, particularly when larvae are resting under leaf litter at the base of plants...
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Catalogue: Broadacre Field Crops DAFF QLD
Seed dressings to combat soil insects are now commonly available and may be the most effective control as well as the least disruptive to natural enemies... Natural enemies of helicoverpa include predators of eggs, larvae and pupae, parasites of eggs and larvae and caterpillar diseases... Control may be more difficult in high-yielding thick canopy crops, particularly when larvae are resting under leaf litter at the base of plants...
Related categories:
Catalogue: Broadacre Field Crops DAFF QLD
Seed dressings to combat soil insects are now commonly available and may be the most effective control as well as the least disruptive to natural enemies... Natural enemies of helicoverpa include predators of eggs, larvae and pupae, parasites of eggs and larvae and caterpillar diseases... Control may be more difficult in high-yielding thick canopy crops, particularly when larvae are resting under leaf litter at the base of plants...
Related categories:
Catalogue: NVT Online Papers
Regional outbreaks are more common, causing losses over limited areas... Stem rust typically causes losses of 10-50 per cent, but this can increase to up to 90 per cent when it occurs in early spring and is not controlled... Stem rust requires living plants on which to grow and reproduce, so to infect crops during the season it must survive over summer by infecting volunteer cereals or grass hosts, known as the 'green bridge'...
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