Size of the first spring generation of <i>Helicoverpa punctigera</i> (Wallengren) (Lepidoptera: Noctuidae) and winter rain in central Australia

Oertel, Anne; Zalucki, Myron P.; Maelzer, D. A.; Fitt, G. P.; Sutherst, R. W.

doi:10.1046/j.1440-6055.1999.00093.x

Cited by 20 publications

(46 citation statements)

References 12 publications

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“…For example, because of a historical absence of entomological expertise in central Australia many of the surveys that have been undertaken there have been (1) Ôsnap shotÕ surveys of short duration targeting species for taxonomic research or for new locality and temporal records (e.g., GrifÞn 1979, Allsopp andLloyd 1987), or (2) longer term surveys of invertebrates whose identiÞcations are at high taxonomic ranks (often at ordinal level or at least reported at ordinal level) to indicate food availability for vertebrates (e.g., Read 1987, GilÞllan 2001. Other, more speciÞc studies in the arid zone have examined the effects of climate on abundance, phenology and migration of pest species such as the Australian plague locust Chortoicetes terminifera (Walker) (e.g., Wright and Symmons 1987), the Australian bushßy Musca vetustissima (Walker) (e.g., Hughes et al 1972), and the native budworm Helicoverpa punctigera (Wallengren) (e.g., Oertel et al 1999). Another study reported the effects of precipitation on butterßy species diversity and migration Australia-wide (Dingle et al 2000).…”

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confidence: 99%

Chronological Changes in Terrestrial Insect Assemblages in the Arid Zone of Australia

Palmer¹

2010

env. entom.

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Arid and semiarid environments are characterized by highly unpredictable and 'pulsed' availability of essential biological resources. The 'boom and bust' response of many vertebrates is commonly invoked for invertebrates and especially insects. This perception of the Australian arid zone is exacerbated by the lack of long-term surveys of insects identified at high levels of taxonomic resolution. From an 18 mo continuous survey of insects in central Australia I determine the phenology of many insect taxa, and clarify which climatic variables most influenced the activity of these taxa. Total abundance and taxon richness were higher in the warmer months and lower in the cooler months. Minimum temperature, rainfall during the survey month, and rainfall during the previous month had significant effects on phenology, demonstrating that there is pronounced and predictable activity of many species in the absence of rain, although rainfall has a marked effect on the activity of some species. Other species were more active or only active in the coolest months. These findings have implications for the most productive time for surveys in the Australian arid zone, the availability of insects as prey or pollinators, and for the potential effects of climate change.

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confidence: 99%

Chronological Changes in Terrestrial Insect Assemblages in the Arid Zone of Australia

Palmer¹

2010

env. entom.

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“…5), evidence for field resistance to insecticides was not recorded in this species until relatively recently (Gunning et al 1997b). This is probably due to the ecology and population structure of H. punctigera which breeds on native host plants in the absence of insecticides in inland Australia (Zalucki et al 1986(Zalucki et al , 1994Gregg et al 1995;Oertel et al 1999). Helicoverpa punctigera re-invades agricultural regions annually (Fitt et al 1989;Maelzer et al 1996;Maelzer & Zalucki 1999Zalucki & Furlong 2005).…”

Section: Area Of Cotton 000 Hamentioning

confidence: 99%

The future of IPM: whither or wither?

Zalucki

Adamson

Furlong

2009

Australian Journal of Entomology

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161

146

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The acronym IPM (integrated pest management) has been around for over 50 years and now not only supposedly guides research and extension in pest management but also markets pesticides, is claimed to be undertaken by many growers, and even resonates with public perceptions and politicians. Whether or not IPM programs are sustainable in the longer term under the conflicting stresses and strains of the modern agricultural environment is debatable. We analyse three case studies of IPM development in Australia: citrus IPM in central Queensland, Brassica IPM in southeast Queensland and Helicoverpa management in cotton in eastern Australia. Many management practices for these pests have changed over time. In the more stable citrus system classical biological control along with changed practices (reduced pesticide use) have effectively controlled imported scale insect pests. In Brassicas and cotton, IPM is predominantly of the sample and spray variety where, increasingly, less broad-spectrum insecticides are used and, in cotton, Helicoverpa management includes the deployment of transgenic plants. We question whether or not IPM principles are always consistent with market forces and whether or not the approach is universally applicable for all pest insects when implemented at the small (field or farm) scale. Farmers will adopt cost-effective approaches that minimise their financial risks. For Australia as a whole over the last 30 years insecticide input costs per hectare have increased faster than the price index, reflecting more costly insecticides, changes to the combinations of crops grown and an increase in the overall area of crops cultivated together with possible concomitant changes in pest abundance. Any pest crisis will ensure rapid changes in practice and adoption of technologies, in order to mitigate the short-term financial stresses caused. However, regression to former practices tends to follow (e.g. in Brassica crops). In most cases, we cannot objectively test if changed management practices are responsible for changes in pest abundance, as is often claimed, or if the latter is simply a consequence of the weather and/or related large-scale landscape features (e.g. area of host plants). We argue that for many systems the future of pest management practice will require a change to landscape or area-wide approaches. We suspect, given how entrenched the acronym has become, whatever the nature of the approach it will be called IPM.

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“…In addition, H. punctigera was believed to develop large populations in inland areas, which migrated into cotton regions during late spring where they were thought to be obligate migrants (Oertel et al 1999;Gregg et al 2001). As these moths had originated from non-cultivated habitats and not been exposed to agricultural insecticides, they should be susceptible and hence interbreed with potentially resistant remnant populations of H. punctigera that may have remained in the cotton regions from the previous season, hence diluting any resistance.…”

Section: Supporting the Rmp And Advancing Knowledge Of Helicoverpa Spmentioning

confidence: 99%

IPM in the transgenic era: a review of the challenges from emerging pests in Australian cotton systems

Wilson

Downes

Khan³

et al. 2013

Crop Pasture Sci.

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Abstract. The Cotton Catchment Communities Cooperative Research Centre began during a period of rapid uptake of Bollgard II ® cotton, which contains genes to express two Bt proteins that control the primary pests of cotton in Australia, Helicoverpa armigera and H. punctigera. The dramatic uptake of this technology presumably resulted in strong selection pressure for resistance in Helicoverpa spp. against the Bt proteins. The discovery of higher than expected levels of resistance in both species against one of the proteins in Bollgard II ® cotton (Cry2Ab) led to significant re-evaluation of the resistance management plan developed for this technology, which was a core area of research for the Cotton CRC. The uptake of Bollgard II ® cotton also led to a substantial decline in pesticide applications against Helicoverpa spp. (from 10-14 to 0-3 applications per season). The low spray environment allowed some pests not controlled by the Bt proteins to emerge as more significant pests, especially sucking species such as Creontiades dilutus and Nezara viridula. A range of other minor pests have also sporadically arisen as problems. Lack of knowledge and experience with these pests created uncertainty and encouraged insecticide use, which threatened to undermine the gains made with Bollgard II ® cotton. Here we chronicle the achievements of the Cotton CRC in providing the industry with new knowledge and management strategies for these pests.

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Size of the first spring generation of Helicoverpa punctigera (Wallengren) (Lepidoptera: Noctuidae) and winter rain in central Australia

Cited by 20 publications

References 12 publications

Chronological Changes in Terrestrial Insect Assemblages in the Arid Zone of Australia

Chronological Changes in Terrestrial Insect Assemblages in the Arid Zone of Australia

The future of IPM: whither or wither?

IPM in the transgenic era: a review of the challenges from emerging pests in Australian cotton systems

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