Tag Archives: helicoverpa

Refresher on managing helicoverpa in chickpea

By admin | Published: August 7, 2009
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 [...]
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Bring on NPV against grubs on grain sorghum

By admin | Published: November 26, 2008
Every year caterpillars of the corn earworm (helicoverpa), Helicoverpa armigera, cause losses to sorghum crops. Regular inspection during flowering is important to detect caterpillar infestations and properly time control measures. Pre-flowering heads of grain sorghum are very attractive to egg-laying moths of the corn earworm. On any individual head, most eggs are laid prior to [...]
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What are those grubs in winter cereals?

By admin | Published: October 1, 2008
Grubs in winter cereals are not unusual at this time of year, and already there have been reports of high numbers (up to 20/m2) in Central Queensland wheat (Figure 1). More grubs can be expected in southern districts as the season warms up. The two most likely larvae (grubs) found in winter cereals are the corn [...]
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Can you confidently identify armyworm and helicoverpa larvae in winter cereals?

By admin | Published: October 17, 2007
Both Helicoverpa armigera and armyworm larvae are occurring together in wheat and barley. It is important to be able to separate the helicoverpa larvae from the armyworm larvae in order to determine whether the numbers are above or below threshold, and, if needed, to make the most appropriate decision about control options. Armyworm larvae have three white [...]
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