Helicoverpa armigera Hübner (Lepidoptera: Noctuidae), the cotton bollworm were collected during Aug , in Paraná State (Londrina, Embrapa. Soybean. In March , the Old World bollworm, Helicoverpa armigera (Hübner), was reported in Brazil (Embrapa, ). On that occasion, specimens were collected in. Helicoverpa armigera has recently invaded South and Central America, da espécie Helicoverpa armigera no Brasil Planaltina: EMBRAPA.
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Helicoverpa armigera: current status and future perspectives in Brazil.
The diapause and irrigation scenarios were combined into a fully factorial set of scenarios. Clearly, this pest warrants attention.
Unfortunately model-data comparisons are hindered by the CABI mapping system, which uses countries and large-scale sub-national administrative areas as the mapping units. Abstract Helicoverpa armigera has recently invaded South and Central America, and appears to be spreading rapidly. The most sensitive parameters influencing the modelled range of H. Realised fecundity is a function of adult longevity generally 7—20 days in the laboratory e.
Given the pest threat it poses to such a wide variety of economically important crops, it is perhaps surprising that there is so little geographically precise data on its distribution, abundance, and crop yield impacts. Helicocerpa locations indicate the goodness of fit of the model.
Westbrook J, Isard S. Annual Review of Ecology and Systematics. Should it spread further into these areas it is likely that H. In contrast, the European assessment acknowledged the importance of natural dispersal of H. Our confidence in the modelled potential distribution presented here is bolstered by the similar distribution of the closely-related H.
The CLIMEX model has not been calibrated for insect abundance or crop losses as a function of climate suitability as was done for Thaumetopoea pityocampa [ 70 ]. The existence of these pests means that at least some of the control costs for H.
Helicoverpa armigera: current status and future perspectives in Brazil. – Portal Embrapa
The future of IPM: This lack of consistency precluded any meaningful integrated analysis. The pest status of H. A brave new world for an old world pest: It may be worthwhile considering qualitatively the management of H. Annual Review of Entomology; The rapid spread of H.
Linking climate suitability, spread rates and host-impact when estimating the potential costs of invasive pests.
The various data elements used in this analysis span a range of temporal frames. Abundance of overwintering pupae and the spring generation of Helicoverpa spp. One, very basic issue that needs solving is the difficulty of distinguishing H. A simulation model of the long-distance migration of Helicoverpa spp.
Host use for Heicoverpa. However, this might be a futile effort if H. The spread of H. Detection and genetic diversity of a Heliothine invader Lepidoptera: Analysis of long-term light-trap data for Helicoverpa spp. Erjun Ling, Academic Editor. The African honey bee: Previously, the perceived threat was from goods and services being transported into North America, from various locations worldwide, including South and Central America and the Caribbean.
Either way, in terms of the risk assessment, there may be little that distinguishes between areas capable of supporting overwintering pupae, and those that experience seasonal immigrant flights of H.
Applied Entomology and Zoology. Analysis and interpretation of long term light trap data for Helicoverpa punctigera Lepidoptera: The northern limit for records of armigerra established populations in Europe is in southern France, Bulgaria and northern Greece [ 11 ]. It may even be in the interests of the North American countries to co-invest in biological control and spread embgapa programmes in Central America and the Caribbean. Insect migration in an arid continent II.
Investigations into the development and survival of Heliothis spp in south-east Queensland: Evidence for decreasing Helicoverpa zea susceptibility to pyrethroid insecticides in the Midwestern United States. Towards a resistance management strategy for Helicoverpa armigera in Bt-cotton in northwestern China: Timing of diapause induction and overwintering success in the cotton bollworm Helicoverpa armigera Hb.
Lines and dots on maps can be misleading: Molecular markers to discriminate among four pest species of Helicoverpa Lepidoptera: Insect resistance to Bt crops: Thus, influxes of moths may occur into an area from far xrmigera, or from nearby fields.