Rust alerts
Growers urged to monitor green bridge leading into 2018
Growers need to consider potential disease carryover into the 2018 season if wet conditions are experienced during summer resulting in weed and crop regrowth. This vegetation can serve as a ‘green bridge’ for diseases which need a living plant to survive, such as...
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WA: Barley and leaf rust persist
King yin Lui (Curtin University) reports finding leaf rust in Bass barley crops near Williams. The barley was at ear emergence. Barley and wheat leaf rust prefers temperatures ranging from 10-22°C and when leaves are frequently wet from dew or rain. The likelihood of...
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WA: Leaf rust infecting wheat crops
Plant pathologist Andrea Hills (DPIRD) has been receiving reports of wheat leaf rust (WLR) in Mace, Scepter and Trojan in an area encompassing Cascade, Coomalbidgup, eastern Grass Patch, Beaumont and Condingup. The wheat crops are currently at stem elongation and rust...
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WA: Barley and wheat leaf rust
Plant pathologist Andrea Hills (DPIRD) has reported finding barley leaf rust (BLR) on Oxford, Flinders, Maltstar and Granger plants at a DPIRD trial site near Gibson. The plants are at the stem elongation stage. Esperance agronomists have also reported that Oxford...
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WA: Leaf rust in wheat near Gairdner, South Coast
Wheat leaf rust (WLR) has been found in tillering Harper wheat near Gairdner on the south coast of WA. It was a widespread crop infection. James Bee from Elders commented that he had observed several pustules on the older leaves on multiple plants in multiple...
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NSW: First stripe rust sample received
The first stripe rust sample for the 2017/18 season has been received by the Australian Cereal Rust Survey team at the Plant Breeding Institute, University of Sydney. It is from North Star, NSW, on Sunlamb wheat. NSW Contact Northern: Steve Simpfendorfer NSW...
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WA: Leaf rust in barley regrowth
Barley leaf rust (BLR) and loose smut have been found on barley regrowth in the West Kendenup area and BLR at a farm on Kojaneerup West Road in the shire of Albany. Leaf rust infection has been found in volunteer barley in several areas of the lower Great Southern...
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WA: Early reports of barley and leaf rust
Early indications are that 2017 is going to be another bad leaf rust year. Barley leaf rust has been found on barley volunteers from Tenterden to South Stirling. Wheat leaf rust has been found on wheat volunteers at Scaddan and Salmon Gums. WA Contacts Central...
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WA: More reports of barley leaf rust
Barley leaf rust has been found on Buloke, LaTrobe, Baudin and Bass barley crops in WA. For some crops, it is too late to spray, but spraying is recommended before flowering.
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SA: Wheat & barley leaf rusts and stripe rust
The warmer weather is allowing leaf rust in wheat and barley to develop and spread more rapidly. Unprotected crops should be monitored more carefully from now on.
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WA: Oat stem rust found in flowering oat crop in Kumbarning
15 July 2016 – Report of stem rust in flowering Yilgarn oats in Kumbarning. It is a feed crop undersown with serradella. Hot spot of infection, less than 15m in diameter in the crop, with a few plants having a couple of spores on each stem. Read more in the PestFax newsletter.
WA: Oat leaf rust found in wild oats along roadsides
8 July 2016 – There have been reports of oat leaf rust on wild oats along the roadsides in the Avon Valley, particularly the Brookton Highway, York–Bruce Rock Road and along the Great Eastern Highway. Read more in the PestFax newsletter.
WA: More barley leaf rust reports
1 July 2016 – There have been at least three more confirmed cases of barley leaf rust in WA, providing growers a timely reminder to check their crops. Leaf rust was found in booting Fathom barley that had been sown in a barley/clover twin sown pasture in Wickepin. The infection was widespread across the crop. DAFWA plant pathologist Kithsiri Jaysena has reported leaf rust in a tillering Baudin barley crop in West Kendenup. Kith also reports leaf rust in a tillering Flinders barley crop in Nayerlup. Read more in the PestFax newsletter.
WA: Stem rust in oats
24 June 2016 – Severe stem rust in oat volunteers west of Wagin has been reported. Plant pathologist Geoff Thomas suggests that the presence of rust infected regrowth is a timely warning that other oat volunteers may be carrying rust inoculum and could act as a source of infection for sown susceptible oat varieties as the season progresses. Cereal rusts, particularly stem rust, can develop rapidly as temperatures become warmer in late winter into spring. Read more in the PestFax newsletter.
WA: Barley leaf rust
24 June 2016 – Barley leaf rust has been found in a Flinders barley crop at South Stirling and in a Bass barley crop in Gnowellen. Both crops were sown in early May and are close to early stem extension. Read more in the PestFax newsletter.
WA: Barley leaf rust
17 June 2016 – Barley leaf rust found in Oxford barley in South Stirling WA. Crops sown in April and early May must be monitored now.
Read more in the PestFax newsletter.
WA: Stem and leaf rust found on oats and barley
3 June 2016 – Stem and leaf rust has been found on oat volunteers by the roadside in the Narrogin shire. Oat volunteers and patches of wild oats are common places to find oat leaf or stem rust surviving outside of crops. Leaf rust is present in a Baudin barley crop at the early tillering stage at Coomalbidgup. There are 4-5 pustules on the lower leaf of plants. The severity of infection in the paddock is unknown. This crop was not treated with a seed dressings or fertiliser applied fungicide.
Read more in the PestFax newsletter.
Barley leaf rust found in WA
30 May 2016 – Leaf rust has been found in early tillering Oxford barley at Gairdner in Western Australia last week. The paddock will be monitored for further development of disease. Leaf rust has also been seen in early sown (March) Hindmarsh barley, mixed with Urambie winter barley, in Dalyup WA. There was volunteer barley in some southern barley growing regions leading into this season and there were reports of leaf rust on barley volunteers from the South Stirlings area. Read more in the PestFax newsletter.