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Diamondback moth ecology and management: problems, progress, and prospects.

Michael J Furlong¹, Denis J Wright, Lloyd M Dosdall

¹School of Biological Sciences, University of Queensland, St Lucia, Queensland 4072, Australia. m.furlong@uq.edu.au

Annual Review of Entomology

|October 2, 2012

Summary

This summary is machine-generated.

The diamondback moth (DBM) is a major agricultural pest costing billions annually. Despite existing sustainable management technologies, widespread insecticide resistance and IPM program failures highlight adoption barriers.

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Area of Science:

Agricultural Entomology
Pest Management

Background:

The diamondback moth (DBM), Plutella xylostella L., poses a significant threat to Brassica crops globally, with annual economic losses estimated at US$4-5 billion.
While knowledge of DBM biology and ecology has advanced, critical data on global distribution and abundance remain limited.
Current pest management relies heavily on insecticides, leading to widespread resistance and disruption of biological control agents like hymenopteran parasitoids.

Purpose of the Study:

To review the current status of the diamondback moth (DBM) as an agricultural pest.
To assess the effectiveness and limitations of current DBM management strategies, including biological control and integrated pest management (IPM).
To identify barriers hindering the sustained adoption of proven DBM management technologies.

Main Methods:

Literature review and synthesis of existing research on DBM biology, ecology, and management.
Analysis of the impact of agricultural intensification on DBM pest status.
Evaluation of the historical development and current challenges of IPM programs for DBM.

Main Results:

Increased agricultural intensification has exacerbated the DBM pest problem, despite significant research advances in some biological and ecological aspects.
Over-reliance on and misuse of insecticides have led to widespread resistance and the failure of IPM programs.
Effective sustainable management technologies for DBM are available but face substantial adoption challenges.

Conclusions:

Sustainable management of the diamondback moth requires overcoming significant barriers to the adoption of proven technologies.
Integrated pest management (IPM) approaches, incorporating ecological understanding and selective insecticides, offer a viable path but require consistent implementation.
Addressing insecticide resistance and promoting the sustained use of effective IPM strategies are crucial for mitigating DBM's economic impact on agriculture.