HELICOVERPA ARMIGERA EMBRAPA PDF

This highly polyphagous species, commonly found both in the Old and New World, has caused significant economic damage as an invasive agricultural pest in Brazil since The goal of the present study is to provide a detailed morphological assessment of adults and immature stages of H. The biology data were acquired during four full life cycles, and observations on general behavior, nocturnal habits of larvae and adults, and sensitivity of larvae to humidity were recorded. Larval chaetotaxy differs between the first and the remaining instars, which bear L2 on the meso- and metathorax and L3 on A3 through A6, along with conspicuous chalazae and longitudinal bands. Important morphological characters of this species include the following: eggs with four micropylar openings, lined with 12 cells arranged in the shape of a rosette; pupa adecticous and obtect, with prominent spiracles; adults with the distal antennomere striate.

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However, it is essential to emphasize the importance of the adoption of Integrated Pest Management IPM philosophy, since improperly applied insecticides will exacerbate pest problem by eliminating the biological control agents and increase the production cost unnecessarily. Therefore, our work discusses, in more detail, the current status, recommended management, and future perspectives of this pest in Brazil. We conclude that, in spite of H. Within this context, monitoring for pests and initiating control measures only when the pest populations reaches the economic thresholds ET recommended by research is crucial.

These procedures protect crop sustainability, thus keeping growers competitive in the market while reducing costs and maximizing productivity. The arrival of H.

It is a chance to fully implement IPM in Brazil as it has never been done or seen before in the history of tropical agriculture. In contrast, if only a simplified version of IPM is employed, H. Unidade: Embrapa Soja. Palavras-chave: Helicoverpa armigera , Insect larvae , Lagarta , Praga de planta. Helicoverpa armigera: current status and future perspectives in Brazil.

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Helicoverpa armigera: current status and future perspectives in Brazil.

The highly polyphagous Old World cotton bollworm Helicoverpa armigera is a quarantine agricultural pest for the American continents. Historically H. The relatively recent species divergence history is evident in mating compatibility between H. Despite periodic interceptions of H. The economic, biosecurity, resistance management, ecological and evolutionary implications of this incursion are discussed in relation to the current agricultural practices in the Americas. This is an open-access article distributed under the terms of the Creative Commons Attribution License, which permits unrestricted use, distribution, and reproduction in any medium, provided the original author and source are credited.

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EPPO Global Database

However, it is essential to emphasize the importance of the adoption of Integrated Pest Management IPM philosophy, since improperly applied insecticides will exacerbate pest problem by eliminating the biological control agents and increase the production cost unnecessarily. Therefore, our work discusses, in more detail, the current status, recommended management, and future perspectives of this pest in Brazil. We conclude that, in spite of H. Within this context, monitoring for pests and initiating control measures only when the pest populations reaches the economic thresholds ET recommended by research is crucial. These procedures protect crop sustainability, thus keeping growers competitive in the market while reducing costs and maximizing productivity.

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