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Author Archives: admin
Recce for armyworm in winter cereals
The quick finish for winter cereals this season has resulted in the majority of crops escaping infestations of armyworm. Headers are already into some fields, but there are reports of armyworm making their presence felt in some of the later crops.
Resistance Update on the Road
The Resistance Roadshow visited regional areas during late August and presented the latest resistance monitoring results for a suite of important pests. Presentations covered resistance to conventional insecticides in cotton aphids, mites, silverleaf whitefly and helicoverpa, and helicoverpa resistance to the Bt toxins in Bollgard II.
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Refresher on managing helicoverpa in chickpea
With the approach of spring, helicoverpa start to become active. In CQ, chickpea crops are attractive to moths, and it is timely to revisit some of the key points related to making decisions about control of this pest in crops.In this article, I wanted to discuss a couple of the recommendations which some growers and [...]
Winter cereal aphids – background to the potential impact of infestations
The most critical issues we face in managing cereal aphids currently is the lack of local knowledge about the likely impact of infestations on yield and quality (the damage thresholds). (http://thebeatsheet-ipmnews.blogspot.com/2008/09/cereal-aphids-in-wheat-and-barley.html).
Posted in Winter cereals Leave a comment
Slaters and other winter cereal establishment pests
In recent days we have received a number of reports of slater activity in winter cereal crops in southern Queensland and northern NSW.
Slaters are not generally regarded as a pest of broad acre agriculture and tend to feed on decaying vegetation and dead animal matter. Overall they perform an important recycling role in the environment [...]
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New whitefly found!
Detection of Q biotype Bemisia tabaci in Australia
The presence of Q biotype Bemisia tabaci species complex in Australia has been confirmed by Dr Robin Gunning, NSW DPI. Q biotype was collected from vegetables in the Bowen/Burdekin region during late 2008, as well as from cotton in southern Queensland (Goondiwindi) and north-western NSW (Wee Waa) during [...]
Posted in Cotton, whitefly Leave a comment
What is eating my soybean pods?
Field crickets
High numbers of field crickets have been reported across the Darling Downs in the last couple of weeks, with some large aggregations of adults attracted to lights at night. Are these crickets doing damage to crops? The answer may well be yes.
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Mirids in Mungbeans
Mirids can cause significant crop losses in mungbeans with yield reductions of up to 25-50% common where high mirid populations (eg 10/m2) are left uncontrolled. Mirids can reduce yields by 60 kg/ha for every mirid/m2 of crop.
Mirids can be present in mungbeans at any stage from seedlings to podding. Budding, flowering and early-podding crops are [...]
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Late season pests of pulses and cotton
Go soft early
Go soft early is a basic integrated pest management (IPM) strategy to avoid using non selective pesticides for as long as possible. This approach encourages a build up of predators and parasites to keep early pests in check and buffer the crop against attack later in the season. This strategy is particularly important [...]
Posted in Cotton, Pulses Leave a comment
White heads and stem borer in wheat