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Pests, Weeds + Diseases

How to avoid insect contamination of cereal grain at harvest (View PDF as text)
Farmnote 57/2005; Farmnote 57/2005; Insect contaminants, also known as vagrant insects, are unintentionally harvested with grain. More insect contaminants in cereals are found in grain from swathed crops than in grain from standing crops. The farmnote outlines ways in which to minimise insect contamination in cereal crops especially if growers in high rainfall areas ar required to swath.

Rust Report - Observations of Cereal Rust Found in 2007. (View PDF as text)
Pest Faxsheet 28; This report lists details of observations of cereal rust for the 2007 season. The purpose of the report is to alert growers and industry to the likely risk areas for cereal rust prevalence this season. Updated 5 October 2007

Skeleton weed (Chondrilla juncea L) control in Western Australia
This page contains relevant information on the skeleton weed program, publications on control and management and contact details. Reviewed August 2005

Cereal foliar fungicides registered for use on cereals in WA : current at June 2007 (View PDF as text)
Updated 1 August 2007 by Dusty Severtson. Replaces Cereal foliar fungicides registered for use on cereals in Western Australia : current at July 2006: Foliar fungicides for cereals.

Crop Updates - 2006 Cereals Updates
Papers presented on wheat, barley and oat agronomy, herbicide tolerance, crop nutrition, diseases and markets.

Sprayer decontamination (View PDF as text)
Farmnote 105/2000. Broadscale farming is based largely on crop rotations of wheat with either lupins or legume pastures. Because of this, there is a serious risk of crop damage from traces of herbicide left in the sprayer after treating the previous crop. Covers preliminary cleaning, chlorine bleach cleaning and alkaline cleaning.

Causes of barley diseases
In barley, disease causing organisms often reduce grain yield by damaging green leaves. Yields are also reduced when the pathogen diverts the plants energy into producing more of the pathogen at the expense of plant growth or grain formation. The main pathogens that cause disease in barley are fungi, although viruses and nematodes can also damage crops in Western Australia.Amended June 2007

Barley leaf and head diseases : mildew, leaf spot, and other diseases
Covers symptoms, source of and spread of infection, conditions favouring disease, and control options for powdery mildews, physiological leaf spotting, halo spot, Wirrega blotch and ring spot diseases in barley crops in Western Australia. Amended March 2007

Barley leaf and head diseases : scald and blotch
Scald is a widespread leaf disease of barley in Western Australia and is caused by the fungus Rhynchosporium secalis. Net blotch is another widespread leaf diseases of barley in Western Australia. Two types of the fungus occur, net-type and spot-type, which have different symptoms and distributions. Information on symptoms, source of infection and spread, conditions favouring disease, and control options. Amended 21 June 2007

Barley leaf and head diseases : barley yellow dwarf virus (BYDV), smut, leaf rust
The development of leaf and head diseases in barley can reduce yield and grain quality. Information on symptoms, source of infection and disease spread, conditions favouring disease, and control options for Barley Yellow Dwarf Virus, covered smut, loose smut and barley leaf rust. Amended 21 June 2007

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