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The Victorian Department of Primary Industries is presently monitoring native budworm (Helicoverpa puntigera) numbers caught in pheromone traps in various regions across Victoria. This provides an indication of the pest risk potential for particular areas and crops. The following information has been provided for October 13th – October 20th.
Region |
Trap Sites |
Moth count7 days |
Moth count10 days* |
Crop &Growth Stage |
|
Mallee |
Beulah Culgoa Walpeup |
4 0 0 |
6 0 0 |
Lentils, podding Peas, podding Lupins, podding |
|
Wimmera |
Brim Kaniva Warracknabeal |
3 47 15 |
4 67 21 |
Faba beans, drying-off
Faba beans, finished flowering |
|
North Central |
Katamatite Kerang |
8 7 |
11 10 |
Peas, podding Faba beans, podding |
|
South West |
Hamilton Willuara |
61 0 |
87 0 |
Canola, podding Faba beans, podding |
*10 day counts are projected; based on 7 day counts.
Regular monitoring (sweep netting) should now be carried out in all districts to determine native budworm larvae numbers and check if control measures are required for flowering crops and those moving into pod development. Developing larvae feed on buds, flowers, fruiting parts and seeds. Small larvae are able to enter pods and damage developing seed but larger larvae are able to devour the entire contents of the pod.
In most situations, a well-timed spray of a synthetic pyrethroid chemical should be sufficient to kill larvae present and prevent re-infestation for up to six weeks. Subsequent caterpillar hatchings will usually be too late to cause economic damage. The economic spray threshold levels vary with crop type, crop stage, grain price and control costs.
For images of native budworm, click here and for information on control, management and threshold guidelines, click here.
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.”
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