sustainability through science & innovation
Resistance in green peach aphids has escalated as a result of heavy reliance on insecticides. A new testing service takes the risk out of choosing the most effective product
Green peach aphids (adults and nymphs) (Source: cesar)
About this pest
The green peach aphid (Myzus persicae) is a pest of many crops but primarily attacks canola, lupins and other pulse crops. They are most common in autumn and seldom cause economic losses to crops through direct feeding. However, the green peach aphid is an important vector of several plant diseases.
Widespread infestations of green peach aphids during autumn and winter in 2014 contributed to a sever outbreak of beet western yellow virus (BWYV) across SA, western Victoria and some parts of NSW. The severity of the 2014 BWYV outbreak was exacerbated by the prevalence of insecticide resistance in green peach aphids populations.
Resistance testing service
This year, cesar is offering a testing service to growers and advisers to determine the presence of insecticide resistance in green peach aphids populations. The tests available cover the three main insecticide groups used to control green peach aphids, and other crop aphids, in Australia: pyrethroids (Group 3A), organophosphates (Group 1B) and carbamates (Group 1A).
cesar uses genetic assays to ensure accuracy and quick results. Resistance results are typically available 7-10 days after receiving aphid samples. Due to the nature of the genetic assays being undertaken, the cost for the resistance tests is dependent on the number of individual samples being screened at one time. Assays become more cost-effective as the number of samples increases.
For further information about this new testing service, contact Anthony van Rooyen at avanrooyen@cesaraustralia.com or phone 03 9349 4723.
What is PestFacts?
PestFacts south-eastern keeps growers and advisers informed about invertebrate pests and beneficials in broadacre crops and pastures during the winter-cropping season in Victoria and southern New South Wales.
PestFacts south-eastern is run through IPMforGrains: Best Practice Insect Pest Management, a project delivered by the National Pest Information Network (cesar, DPIRD, QDAF, NSW DPI, and SARDI). This project aims to provide grain growers and advisors with information on invertebrate grain pest occurrence and equip industry with the knowledge needed to implement integrated pest management practices. This initiative is a GRDC investment and includes in-kind contributions from all project partner organisations.
We need your reports
PestFacts is produced on an ʻas-needsʼ basis and relies upon pest observations and field reports from our subscribers. If you have recently observed invertebrate pests (or beneficial species) in broadacre crops, please contact us to report your observations.
Agricultural invertebrate identification
If you are a grower or agronomist in Victoria or NSW working with broadacre crops or pastures, we can assist you with identifying invertebrates found on farms at no cost. Please contact us for identification help.
PestFacts map
PestFacts map is an interactive tool that allows users to search and view historical pest reports across Victoria and NSW. The map is updated with each issue of PestFacts to include new reports.
How to acknowledge PestFacts?
With appropriate acknowledgement, cesar grants permission to reproduce information taken directly from PestFacts. To cite PestFacts: “PestFacts south-eastern (<<enter date published>>). cesar pty ltd.”
Contact us
0484 310 697
|
PestFacts Reporter app: |
||
 |
 |
|
PestFacts is supported by
