The regulation of migration in <i>Helicoverpa armigera</i>

Colvin, Justine

doi:10.1017/cbo9780511470875.013

Cited by 7 publications

(6 citation statements)

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“…Wind speed is typically one of the most important abiotic factors affecting flight in insects, but this is not a significant factor determining displacement by E. viteana (Table 3). The average wind speed during the flight activity periods was 1.2 m s −1 in 2001 and 1.1 m s −1 in 2002, which is well within the range of 0.5–2 m s −1 cited as the range for take off for many insects (Pasek, 1988; Colvin, 1995). However, take‐off and directed flight by E. viteana in wind tunnels is reduced in wind of only 0.66 m s −1 (G. English‐Loeb, personal communication), further indicating that E. viteana is not a strong flier.…”

Section: Discussionsupporting

confidence: 61%

Movement of the grape berry moth,Endopiza viteana: displacement distance and direction

Botero-Garcés

Isaacs

2004

Physiological Entomology

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Mark-release-recapture is used to quantify displacement by adults of the North American grape berry moth, Endopiza viteana Clemens (Lepidoptera: Tortricidae) under field conditions. Moths marked with fluorescent dust are released eight times in the centre of a vineyard over 2 years, and recaptured using pheromone traps and interception traps. In vineyards, male moths are recaptured an average of 13.8 AE 0.8 m from the release site (maximum 58.2 m), whereas female displacement is similar with average flight distances of 11.4 AE 6.7 m (maximum 41.2 m). Increasing wind speed during moth flight activity periods suppresses displacement by both sexes, and females are less likely than males to fly in winds above 0.6 m s À1 . The majority of males are recaptured upwind from the release site or at a tangent to the overall mean wind direction when responding to pheromone traps, whereas female moths trapped in interception traps exhibit a large variability in direction from the release point. Releases of marked moths in woods adjacent to a vineyard demonstrates interhabitat movement by E. viteana males and by a single female. The average maximum displacement by males during interhabitat movement is 105.4 AE 3.9 m, significantly greater than the average maximum of 39.7 AE 6.7 m inside the vineyard habitat.

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Section: Discussionsupporting

confidence: 61%

Movement of the grape berry moth,Endopiza viteana: displacement distance and direction

Botero-Garcés

Isaacs

2004

Physiological Entomology

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“…The cotton bollworm, Helicoverpa armigera, is considered to be a facultative migrant which undertakes long-distance flights in response to deterioration in the current habitat (Fitt, 1989;Riley et al, 1992). Colvin (1995) suggested that nectar from flowering plants may serve as an important environmental cue that signals both the present suitability of the habitat for adult reproduction and its future suitability for larval development. This argument is strongly supported by common observations that for the majority of moths in this species, carbohydrate is required for reproductive maturation (Hardwick, 1965;Colvin and Gatehouse, 1993a) and female moths tended to prefer laying their eggs near the flowers or reproductive parts of host plants (Roome, 1975;Wardaugh et al, 1980;Alvarado-Rodriguez et al, 1982;Firempong and Zalucki, 1990).…”

Section: Discussionmentioning

confidence: 99%

The influences of larval and adult food quality on the calling rate and pre-calling period of females of the cotton bollworm, Helicoverpa armigera Huebner(Lepidoptera: Noctuidae).

Casimero

Nakasuji

Fujisaki

2001

Appl. Entomol. Zool.

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Pre-calling behavior of female adults of Helicoverpa armigera reared on artificial diet (Insecta LF) during the larval stage and fed on water and honey solutions (5, 10 and 20%) was observed. The quality of the adult diet did not influence the distribution of the pre-calling period (PCP). However, the calling rate was significantly higher in the three honey-fed groups (100%) than in the water-fed group (87.5%). In the next experiment, pre-calling behavior of female adults that were reared on Insecta LF during the larval stage and fed on 10% honey solution starting from different days after emergence was observed. The delay of adult feeding did not influence the calling rate, although the PCP was slightly prolonged in individuals which were not fed on honey solution until the onset of night 3 or night 5 (night 0ϭnight of adult eclosion). In the experiment in which larvae were fed on different qualities of food (cotton leaf, okra fruit and Insecta LF), the calling rate varied greatly depending on the adult diet. When fed on honey solution, almost all adults called irrespective of their larval diet. However, when fed on water only, the calling rate of adults fed on Insecta LF during the larval period was 60.4%, while those of adults fed on cotton leaf and okra fruit were only 16.7% and 33.3%, respectively. These results indicate that most female adults of H. armigera can attain reproductive maturity even without feeding on nutritious diets when provided with highly nutritious diets during the larval period, and most female adults can not attain reproductive maturity without feeding on nutritious diets when provided with low nutritive value diets during the larval period.

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“…The major Helicoverpa pest species (H. punctigera, H. armigera, H. zea) are distributed throughout the tropical and warm-temperate regions of the world (24,67,134). In the first comprehensive taxonomic separation of the morphologically homogeneous Heliothis armigera complex, Hardwick (67) considered H. armigera a widespread cosmopolitan Old World species that included the subspecies H. armigera armigera (Africa, Europe, and Asia), H. armigera conferta (endemic to Australasia), and H. armigera commoni (limited to Canton Island, central Pacific) (for current distribution of H. a. armigera and H. a. conferta, see Figure 1).…”

Section: Historical Native Range Of Helicoverpamentioning

confidence: 99%

“…Migration is unlikely if food sources are promptly encountered by postteneral adults (usually flowers to provide nectar); there is some evidence that the lack of food in 1-2-day-old female H. armigera moths delays maturation and promotes longer flights (66). If the young adults find food, they stay and mate after which there will be no long-range movements (24,47,53,101); however, there still might be dispersive movements up to tens of kilometers. The exact behavior of emigrating moths in relation to whether an attempt is made to assess the favorability of the local habitat before departing en masse is not clear.…”

Section: Environmental Factors Initiating Migrationmentioning

confidence: 99%

“…The difficulty of observing Helicoverpa embarking on, or engaged in, high-altitude nocturnal flight and capturing long-distance migrants means that alternative proxies for understanding the physiological basis of migratory behavior that are readily measurable are sought. Two interlinked traits commonly used to identify migratory individuals are delayed reproduction (24,75) and increased flight activity. Typically, noctuid moth species perform long-range migration prior to reaching sexual maturity (87).…”

Section: Physiological Basis Of Migrationmentioning

confidence: 99%

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Movement Ecology of Pest Helicoverpa: Implications for Ongoing Spread

Jones

Parry

Tay

et al. 2019

Annu. Rev. Entomol.

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The recent introduction and spread of Helicoverpa armigera throughout South America highlight the invasiveness and adaptability of moths in the Helicoverpa genus. Long-range movement in three key members, H. armigera, H. zea, and H. punctigera, occurs by migration and international trade. These movements facilitate high population admixture and genetic diversity, with important economic, biosecurity, and control implications in today's agricultural landscape. This is particularly true for the spread of resistance alleles to transgenic crops expressing Bacillus thuringiensis (Bt) toxins that are planted over vast areas to suppress Helicoverpa spp. The ability to track long-distance movement through radar technology, population genetic markers, and/or long-distance dispersal modeling has advanced in recent years, yet we still know relatively little about the population trajectories or migratory routes in Helicoverpa spp. Here, we consider how experimental and theoretical approaches can be integrated to fill key knowledge gaps and assist management practices.

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The regulation of migration in Helicoverpa armigera

Cited by 7 publications

References 0 publications

Movement of the grape berry moth,Endopiza viteana: displacement distance and direction

Movement of the grape berry moth,Endopiza viteana: displacement distance and direction

The influences of larval and adult food quality on the calling rate and pre-calling period of females of the cotton bollworm, Helicoverpa armigera Huebner(Lepidoptera: Noctuidae).

Movement Ecology of Pest Helicoverpa: Implications for Ongoing Spread

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