Category Archives: armyworm

Aphids, virus and leaf feeding caterpillars in faba beans.

Melina Miles   June 11, 2014   Comments Off on Aphids, virus and leaf feeding caterpillars in faba beans.

As the warm weather persists, insect activity is remaining high. DAFFQ Entomology has received numerous reports of aphids, and leaf-feeding caterpillars. The aphids have been identified as cowpea aphid and the caterpillars as one of the summer-active armyworm species, Spodoptera exigua (lesser armyworm). The concerns about these are for the potential for crop loss caused by direct feeding damage/defoliation or virus… Read more »

Armyworms defoliating sorghum, millet and corn on the Downs

On the Darling Downs there have been a number of reports of common armyworm causing significant defoliation in sorghum, corn and millet. Jimbour grower John Alexander treated a severely defoliated sorghum crop two weeks ago. Millet and corn crops in the same area have also been affected. Although patchy, the outbreaks have the potential to cause significant yield loss if… Read more »

Spring pests of winter cereals

Melina Miles   August 30, 2013   Comments Off on Spring pests of winter cereals

Armyworm in barley and wheat. A number of reports of armyworm in crops have been received over the past couple of weeks. Numbers range from 30 to 50 per square metre (extreme) to a more typical 5 to10 larvae per square metre. Assessing larval density is done using a sweep net, bucket or beating a section of row into a… Read more »

Late season winter crop pest management – remember to look out for armyworm and helicoverpa

adminmelina   November 9, 2011   Comments Off on Late season winter crop pest management – remember to look out for armyworm and helicoverpa

As winter crops finish up and approach harvest, there are a couple of pests that still have the potential to cause some concerns.  Armyworm and helicoverpa in barley, wheat and oats. There have been a number of reports of armyworm activity across the northern region in isolated pockets. Armyworm has the capacity to lop heads in barley, wheat and oats… Read more »

Avenge of the caterpillars…

adminmelina   April 23, 2010   Comments Off on Avenge of the caterpillars…

High rainfall and active plant growth have created perfect conditions for insects to build up in high numbers. On the Downs there have been reports of castor oil looper and common armyworm in plague numbers as well as other caterpillars including sorghum head caterpillar.

Recce for armyworm in winter cereals

adminmelina   October 9, 2009   Comments Off on Recce for armyworm in winter cereals

The quick finish for winter cereals this season has resulted in the majority of crops escaping infestations of armyworm. Headers are already into some fields, but there are reports of armyworm making their presence felt in some of the later crops.

Armyworm in wheat

adminmelina   October 20, 2008   Comments Off on Armyworm in wheat

Over the past couple of weeks there have been numerous reports of armyworm in both barley and wheat. The appearance of armyworm in wheat raises a number of questions: 1) Do they behave the same way in wheat as in barley in relation to the type of damage they cause 2) what is their damage potential and is there an… Read more »

Can you confidently identify armyworm and helicoverpa larvae in winter cereals?

adminmelina   October 17, 2007   Comments Off on Can you confidently identify armyworm and helicoverpa larvae in winter cereals?

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 stripes on the… Read more »

WATCH FOR ARMYWORMS IN BARLEY AND OATS

adminmelina   September 21, 2007   Comments Off on WATCH FOR ARMYWORMS IN BARLEY AND OATS

With the current high value of barley, growers should closely monitor armyworm infestations as crops approach maturity. Armyworms are important pests in southern Queensland where they attack winter cereals, particularly barley and oats, in September and October. Larvae appear in plague proportions in some years, and are patchy in others. Head cutting by large larvae can lead to serious losses… Read more »