You are here

stem rust

Categorised under:

Catalogue: Ground Cover
Nick Poole from the Foundation for Arable Research says new tools to fight leaf diseases and respond to crops' nitrogen needs could be worth hundreds of dollars a hectare to high-rainfall zone growers... PHOTO: Kellie Penfold New tools to fight leaf diseases and respond to crops' nitrogen needs have been developed for cereal growers in the high-rainfall zone (HRZ), following a three-year project by the Foundation for Arable Research... "For example, our previous research gave confidence to cereal growers to delay nitrogen and fungicide decisions until stem elongation," Mr Poole says...
Related categories:
Catalogue: GRDC Final Reports
One Avena abyssinica and one Avena strigosa accession had resistance to the most virulent strains of leaf rust but none were resistant to the most virulent stem rust strains... The principal expected outcomes of this project are improved yield potential and grain quality unattainable by conventional breeding methods plus lower production costs for oat growers, processors and exporters... The techniques used in this work are a valuable method for obtaining new genetic resistance to important leaf diseases without the need for genetic modification technology that has not been accepted by the community or market...
Related categories:
Catalogue: GRDC Media
Growers are urged to control the 'green bridge' now and choose disease resistant crop varieties, after wheat stem rust, barley leaf rust and powdery mildew were found in Western Australia's southern cropping regions... Department of Agriculture and Food (DAFWA) researcher Kith Jayasena, whose research is supported by the Grains Research and Development Corporation (GRDC), said the detection of significant amounts of wheat stem rust this year was of particular concern as the disease could cause yield losses of up to 90 per cent in susceptible wheat varieties... " the strategy, when applied in trials in the high yielding environment of Gibson in the Esperance region, provided yields 56 per_cent greater than the unsprayed crop, and economic returns of $399 per hectare - compared with $83/ha from a single fungicide application at the first sign of the disease, and $111/ha for a single spray three weeks after the disease becomes evident," he said...
Related categories:
Catalogue: GRDC Updates (North)
The potential for epidemic development can be gauged by the amount of disease in the lower canopy... Cereal seed treatments are widely used throughout the Northern Grains Region (NGR) to control or suppress a broad range of diseases... With a range of diseases that are more difficult to control and a grain fill period less predisposed to drought stress there may be more benefit to strobilurins in barley crops rather than wheat, though more work is needed to verify this statement...
Related categories:
Catalogue: GRDC Updates (South)
The potential for epidemic development can be gauged by the amount of disease in the lower canopy... Cereal seed treatments are widely used throughout the Northern Grains Region (NGR) to control or suppress a broad range of diseases... With a range of diseases that are more difficult to control and a grain fill period less predisposed to drought stress there may be more benefit to strobilurins in barley crops rather than wheat, though more work is needed to verify this statement...
Related categories:
Catalogue: GRDC Factsheets
When faced with foliar fungal diseases in cereals, control and damage limitation strategies need to be tailored to the rainfall region, variety resistance status and the disease... Foliar fungal diseases of wheat and barley, such as stripe, leaf and stem rust as well as powdery mildew, can result in substantial losses in all but resistant varieties if left unchecked (Figure 1)... yield increases of 56 per cent have been obtained from GS71 (watery ripe stage) applications in research conducted in WA...
Related categories:
Catalogue: GRDC Factsheets
When faced with foliar fungal diseases in cereals, control and damage limitation strategies need to be tailored to the rainfall region, variety resistance status and the disease... Foliar fungal diseases of wheat and barley, such as stripe, leaf and stem rust as well as powdery mildew, can result in substantial losses in all but resistant varieties if left unchecked (Figure 1)... yield increases of 56 per cent have been obtained from GS71 (watery ripe stage) applications in research conducted in WA...
Related categories:
Catalogue: GRDC Factsheets
When faced with foliar fungal diseases in cereals, control and damage limitation strategies need to be tailored to the rainfall region, variety resistance status and the disease... Foliar fungal diseases of wheat and barley, such as stripe, leaf and stem rust as well as powdery mildew, can result in substantial losses in all but resistant varieties if left unchecked (Figure 1)... yield increases of 56 per cent have been obtained from GS71 (watery ripe stage) applications in research conducted in WA...
Related categories:
Catalogue: Ground Cover
Mr Poole pointed out that an advantage of foliar fungicides over upfront treatments were that if dry conditions do not favour disease, or Adult Plant Resistance (APR) offers sufficient protection, then foliar fungicides may be unnecessary, resulting in significant cost savings... Upfront treatments are less likely to provide protection for this later developing rust and foliar applications targeted at stripe and leaf rust control at stem elongation (GS32-39) while reducing infection lower down in the canopy still leave the peduncle (upper stem) and head without fungicide protection... GRDC Research Code SFS00015 More information: Nick Poole, poolen@far.org.nz [Photo (left) by Emma Leonard: Nick Poole illustrates the area of the plant left unprotected if a fungicide is applied at stem elongation...
Related categories:
Catalogue: Ground Cover
The new variety, Fusion , demonstrated in the GRDC-supported National Variety Trials (NVT) that it can perform well in seasons with dry springs, lifting the grain's potential as a more reliable crop... Fusion is the latest variety to come from the National Triticale Improvement Program funded by the GRDC and managed by Australian Grain Technologies (AGT)... Overall, Fusion has excellent resistance against stem, leaf and stripe rust...
Related categories:

Pages