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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The threshold of 10 for GI A was chosen arbitrarily as the minimum climate suitability that could produce noticeable pest impacts. For a small number of ports for which the International Air Transport Authority IATA codes could not be resolved, Google Maps was used to identify geographical coordinates manually based on the location description. We armiyera a previously developed potential distribution model to highlight the global invasion threat, with emphasis on the risks to the United States.

Noctuidae in northern New South Wales, Australia: Noctuidae and expansion of its occurrence record in Brazil. Report of a pest risk analysis: Australian Journal of Entomology. The ecology of Heliothis species in relation to agroecosystems.

They were introduced to control native lepidopteran pests such armigfra H. Pest risk assessment of insects in sea cargo containers.

It is unclear if H.

Whilst there is no direct evidence of the detection rate in this case, based on the few studies available e. 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 ].


Model parameters were adapted from Zalucki and Furlong jelicoverpa 12 ]. Our CLIMEX model agrees with the available distribution data, development rate experiments, and phenological observations. The successful establishment and spread of the species seems to have been unhindered by the presence of closely related heliothines, ostensibly in the same or similar niche.

Helicoverpa armigera: current status and future perspectives in Brazil. – Portal Embrapa

There are no apparent barriers to its spread through Central America to the point where it could migrate into the agricultural regions of North America. Should it spread further into these areas it is likely that H.

Methods in Ecology and Evolution. Insect resistance to Bt crops: Host use for H. Compared with the coarse biome-comparison methods of Venette et al. Now there are two likely natural dispersal pathways, via the land bridge between North and South America, or via island-hopping across the Caribbean.

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Changed values are indicated in bold. Memoirs of the Entomological Society of Canada. The rapid spread of H. The VOP data for each of the selected hosts were processed as follows:.

Populations have been high there, impacting significantly on key crops such as corn, soybeans, tomatoes and cotton to name a few uelicoverpa 5 ]. The evolution of cotton pest management practices in China. In the Old World, the species has been a major pest of agriculture, horticulture and floriculture throughout its range Fig. For all crops the area harvested acres was available.

Recent research suggests that the pupal cold tolerance limits for H. Whilst this may also be true of H. Whilst the modification of the Zalucki and Furlong model may be interpreted as an implied criticism of the original model, the changes we implement here are more of a reframing or redefinition of the model. Evidence for decreasing Helicoverpa zea susceptibility to pyrethroid insecticides in the Midwestern United States. The threat posed to a broad range of economically important crops suggests that some significant preparedness activities may be warranted.


Australian Journal of Experimental Agriculture. Overwintering and spring migration in the bollworm Helicoverpa armigera Lepidoptera: As befits its wide latitudinal range, H. North American Plant Protection Organization. The diapause mechanism is poorly understood, but the soil moisture limits for growth are embrapq characterised by the permanent wilting point for annual vegetation. The failure so far of H. Noctuidae and of its relationship to H.

The mtDNA marker method of species differentiation of Behere et al. Unfortunately, the available data types from the agricultural census varied by commodity. Population changes and forecasting pest helifoverpa. Helicoverpa armigera adults are migratory, and can move many hundreds of kilometres between regions and extensively between fields within regions [ 38394041 ].

Egg laying preference, larval dispersion, and cannibalism in Helicoverpa armigera Lepidoptera: Nonetheless, the alarming frequency of H. The Empire Cotton Growing Review. Forecasting Helicoverpa populations in Australia: Conceived and designed the experiments:

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