Category Archives: helicoverpa

Helicoverpa activity and management in chickpeas

chick blog nov2010

Helicoverpa are the primary insect pest of chickpeas. Beneficial insects that are present in many crops do not thrive in chickpeas, so successful helicoverpa management relies heavily on monitoring and identification, appropriately timing control to crop stage, and using the recommended thresholds. Monitoring involves regular in-field checking with a beat sheet. Additionally, moth numbers can be monitored using pheromone traps… Read more »

High Helicoverpa armigera (corn earworm) activity now being seen in winter cereals

Melina Miles   October 19, 2016   Comments Off on High Helicoverpa armigera (corn earworm) activity now being seen in winter cereals

Large flights of helicoverpa over the last 2 weeks (or longer in some districts) have seen significant eggs lays and larval populations in winter crops, including the winter cereals. It is not unusual to find both corn earworm and armyworm in cereal crops. Correct identification of the species present is very important as it influences damage potential and choice of… Read more »

Helicoverpa activity and pheromone trap catches to 16 September 2016

Richard Lloyd   September 21, 2016   Comments Off on Helicoverpa activity and pheromone trap catches to 16 September 2016

Helicoverpa punctigera numbers in pheromone traps look to be on the increase through September. The continued migration of H. punctigera through spring is likely, if suitable weather systems occur, and it is likely that all susceptible crops (chickpea, canola, faba beans, spring mungbeans, spring sunflowers) will experience helicoverpa pressure through October and November. Peter Gregg and Alice Del Socorro (University… Read more »

Predicting helicoverpa development rate in finishing and late pulse/canola crops

Melina Miles   October 20, 2015   Comments Off on Predicting helicoverpa development rate in finishing and late pulse/canola crops

As the early and moisture stressed crops finish up, and those that were under a storm kick on, it is challenging to try and estimate whether small helicoverpa larvae in the crop should be controlled, or whether the crop will finish up before they get to a damaging size. There are a few things to keep in mind when making… Read more »

Helicoverpa armigera emergence from diapause boosts trap catches.

Melina Miles   October 20, 2015   Comments Off on Helicoverpa armigera emergence from diapause boosts trap catches.

Helicoverpa moth activity to 19 October, 2015. Over the past 1-2 weeks we have seen increasing H. armigera catches in the pheromone traps across Queensland (Qld) and northern New South Wales (NSW). The series of graphs of H. armigera and H. punctigera trap catches from August to 19 October are below. Included with these graphs are the current predictions for… Read more »

Helicoverpa activity – pheromone catch map

Melina Miles   September 17, 2015   Comments Off on Helicoverpa activity – pheromone catch map

Helicoverpa pheromone trap catches to 18 September 2015 This information is updated weekly on Fridays and/or the following Monday. Where the data for the current week is not yet available, click on the location marker to see data from previous weeks. The Northern region pheromone trap network is part of a national network of traps being run in 2015, funded… Read more »

Helicoverpa activity and other pests to watch for in winter crops.

Melina Miles   September 10, 2015   Comments Off on Helicoverpa activity and other pests to watch for in winter crops.

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 »

Recognising caterpillar pests of canola.

Melina Miles   September 22, 2014   Comments Off on Recognising caterpillar pests of canola.

As canola sets and matures pods, and spring temperatures rise, there are a number of caterpillar pests that are active in this crop. Along with helicoverpa there are diamondback moth larvae (Plutella xylostella) and cabbage white butterfly larvae (Pieris rapae) in crops. It is critical that you can distinguish the species, and be familiar with their respective thresholds, in order… Read more »

Helicoverpa and midge management in sorghum

Melina Miles   December 20, 2012   Comments Off on Helicoverpa and midge management in sorghum

As crops come into head and start to fill grain, sorghum midge and helicoverpa will start to infest crops. Making a decision about when control is warranted is made somewhat easier with the availability of economic threshold calculators now available on the Beatsheet Blog (http://thebeatsheet.com.au/sampling-2/); or use the ready reckoners in this article. MANAGEMENT OF SORGHUM MIDGE How to count… Read more »