Major soybean moth outbreaks have recently been reported in some coastal Burnett soybean crops, and lesser outbreaks in crops in the Burdekin. Soybean moth is generally a minor soybean pest but major outbreaks have been reported periodically in all soybean growing regions. In extreme cases, crops can be totally defoliated. Feeding damage Larvae feed mostly within the leaves, making distinctive… Read more »
Phytoplasma (a specialised bacteria infecting plants) has been widely reported in spring-planted mungbeans from Central Queensland to North Western NSW (Moree and Narrabri) and all areas in between. Symptoms include masses of small deformed leaves, flowers and pods, plants remaining green at harvest, and possibly an increased incidence of puffy pod. While in previous recent summers, moderate to high levels… Read more »
A devastating disease was observed in several paddocks of soybean crops in the Branchview area of the Darling Downs in late autumn 2016. Almost 100 percent of plants were affected in some paddocks. The affected plants produced no, or very few filled pods and instead had a proliferation of tiny immature pods as shown in Photos 1 and 2. The plants… Read more »
Once again, lucerne crown borer (LCB) (Zygrita diva) has been active in soybeans this season. Worst affected regions were the Northern Rivers and the Liverpool Plains in NSW, but reports were also fielded from the Bundaberg, Fassifern and Darling Downs regions in Queensland. In some of the severely affected crops, over 80% of plants were infested, and up to 70%… Read more »
In response to the recent confirmation of the damage potential of green mirids in faba beans, Pulse Australia has successfully applied to the APVMA for a permit to allow the use of dimethoate for the control of mirids in faba beans (PER82378). The permit is active from 1 June 2016 to 31 May 2021, and is applicable in all states,… Read more »
Bean podborer (Maruca vitrata) have been observed in large numbers (>20/m2) in flowering/podding mungbeans planted from January onwards in the Burnett region. They are likely to be present in other coastal/subcoastal regions such as the Burdekin, Callide Valley and the Wide Bay/Burnett (particularly in late-planted crops), and to a lesser extent in the eastern Darling Downs, and Emerald in Central… Read more »
Over the past two winters, agronomists and growers have been asking whether the green mirids that they are finding in faba beans are doing any damage. Until now, the short answer to that was that we simply didn’t know. In 2014 Department of Agriculture and Fisheries (DAF) Entomology conducted a preliminary trial to determine if green mirids could cause the… Read more »
Helicoverpa armigera active now. This spring a number of agronomists have just started monitoring pheromone traps across the northern region, and the results from the past two weeks illustrate how useful pheromone traps can be. Over the past 1-2 weeks, the traps are catching relatively high numbers of Helicoverpa armigera, and low catches of H. punctigera. In September it is generally assumed that… Read more »
There is an understandable level of concern about how best to manage etiella (Etiella behrii) in summer mungbean crops following the unexpectedly high etiella infestations (and corresponding seed damage and contamination) in spring mungbean crops on the Downs and in Central Queensland and North Western New South Wales. Responding to the etiella threat without reacting prematurely and creating more pest… Read more »
Significant soybean moth activity has recently been reported in some Burdekin soybean crops. Soybean moth is a generally a minor soybean pest but significant outbreaks have been reported periodically in all soybean growing regions. Feeding damage Larvae feed mostly within the leaves, making distinctive pale leaf mines, and often distorting leaves. Soybean moth is present in low numbers in most… Read more »
