Comparison of Biology between<i>Helicoverpa zea</i>and<i>Helicoverpa armigera</i>(Lepidoptera: Noctuidae) Reared on Artificial Diets

Barbosa, T. A. N.; Mendes, S. M.; Rodrigues, G. T.; Ribeiro, P. E. de A.; Santos, C. A. dos; Valicente, Fernando Hercos; Oliveira, Charles Martins de

doi:10.1653/024.099.0113

Cited by 16 publications

(14 citation statements)

References 19 publications

Supporting

Mentioning

Contrasting

Unclassified

Order By: Relevance

“…The main focus of the present study analyzed spatial distribution of moths, and not the role proboscis length or body size. In June, aphid honeydew which was secreted from true leaves of cotton simulated or attracted overwintering generation moths (small-size moth enclosed from the diapausing pupa) in agreement with the result of Barbosa et al (2016). During July and August 2021, with the emergence of 2nd /3rd CBW generations and owering feral plants/weeds, the dependence of moths on aphid honeydew was severely reduced (2 ≤ association index ( ) ≤ 2.9) and limited the number of hotspots in June (Fig.…”

Section: Sadie Analysissupporting

confidence: 77%

Is there a relationship between the density of Helicoverpa armigera Hübner (Lepidoptera: Noctuidae) and Aphis gossypii Glover (Hemiptera: Aphididae)? Spatial analysis of moth-aphid abundance across cotton fields located southeast of the Caspian Sea

Jokar¹,

Sheikholeslami²

2023

Preprint

View full text Add to dashboard Cite

The cotton bollworm (CBW), Helicoverpa armigera Hübner (Lepidoptera: Noctuidae), and cotton aphid (CA), Aphis gossypii Glover (Hemiptera: Aphididae), are two cotton pests that are commonly found throughout the world. A weekly sampling program was established to determine the spatial distribution of A. gossypii and H. armigera in cotton fields. Spatial associations with each other and/or with climatic factors including the aerosol index of Sentinel-5, evapotranspiration of MODIS, and precipitation were determined. Sampling was performed simultaneously in all 63 grid-fields at weekly intervals. Pest density maps and analyses of pest density associations were produced with Spatial Analysis by Distance IndicEs (SADIE). Lloyd's Mean crowding, Morisita's coefficient of dispersion, and Fisher's indexes of aggregation showed significant aggregation patterns for both pests. Using the SADIE method, 𝐼𝑎 ≥1 for both pests were significantly (P < 0.01) aggregated over the sampling period. The association matrix showed a significant correlation for both pests in terms of aerosol index (-), precipitation (+), and evapotranspiration (+) but not for moth density-rainfall. Therefore, providing honeydew by Aphid cotton, aided 1st and 2nd generation of cotton bollworms to regulate their population. The positive and negative associations between aphid density and dust index variables may potentially act as an alarm for monitoring the cotton bollworm moth, particularly in cotton fields southeast of the Caspian Sea.

show abstract

Section: Sadie Analysissupporting

confidence: 77%

Is there a relationship between the density of Helicoverpa armigera Hübner (Lepidoptera: Noctuidae) and Aphis gossypii Glover (Hemiptera: Aphididae)? Spatial analysis of moth-aphid abundance across cotton fields located southeast of the Caspian Sea

Jokar¹,

Sheikholeslami²

2023

Preprint

View full text Add to dashboard Cite

show abstract

“…zea . Some studies have reported similar development between these species [10, 61, 62, 64], however, a recent study conducted on artificial diet indicated that H . zea are larger than H .…”

Section: Discussionmentioning

confidence: 99%

“…zea are larger than H . armigera , and have slower development [64]. Although the study was conducted on artificial diet, it indicates that biological differences between the species may occur, and along with host plant and other factors, influence intraguild competition.…”

Section: Discussionmentioning

confidence: 99%

Battle in the New World: Helicoverpa armigera versus Helicoverpa zea (Lepidoptera: Noctuidae)

et al. 2016

View full text Add to dashboard Cite

The corn earworm Helicoverpa zea (Boddie) and the old world bollworm Helicoverpa armigera (Hübner) (Lepidoptera: Noctuidae) are allopatric species and occur in important agricultural crops. In maize, both species tend to infest the ear. The introduction of H. armigera in Brazil has created a new scenario, where these Helicoverpa species might cohabit and interact with one another, affecting the prevalence of each species in the agroecosystem, integrated pest management, and insect resistance management. In this study, larval occurrence and proportion of these species in maize was assessed in three regions of Brazil during three crop seasons. Interaction between the species was evaluated in interspecific and intraspecific scenarios under laboratory and field conditions. Helicoverpa zea was predominant in Rio Grande do Sul and the Planaltina, DF (central Brazil). In western Bahia, H. zea was predominant in the first collection, but approximately equal in number to H armigera in the second crop season. Both species exhibit high cannibalism/predation rates, and larval size was the primary factor for larval survival in the interaction studies. Larva of H. zea had higher survival when interacting with H. armigera, indicating that H. zea has an advantage in intraguild interactions with H. armigera in maize. Overall, the results from this study indicate that maize might play a role as a source of infestation or a sink of insecticide or Bt protein unselected H. armigera populations, depending on the H. zea:H. armigera intraguild competition and adult movement in the landscape.

show abstract

“…Considering the number of publications about this species on artificial diets (Krishnareddy and Hanur, 2015; Barbosa et al ., 2016), for data analysis, we also included previous results obtained with the same population on artificial diet (Silva et al ., 2018), to compare pest performance on natural host plants and artificial diet. The information may broaden the understanding of the interactions between the insect and the three host plants.…”

Section: Introductionmentioning

confidence: 99%

Role of nutritional composition in the development and survival of Helicoverpa armigera (Hübner) (Lepidoptera: Noctuidae) on artificial diet and natural hosts

Silva

Baldin

Specht

et al. 2020

Bull. Entomol. Res.

View full text Add to dashboard Cite

Helicoverpa armigera is a pest of several crops causing significant economic impact. We evaluated the insect development on different vegetative and reproductive structures of cotton, maize, and soybean compared to artificial diet. One hundred individuals were evaluated per structure (cotton leaves and bolls; maize leaves, grains, and silk; soybean leaves and pods) and artificial diet. Centesimal analyses were performed on quantifiable nutrient contents in diets. The viability of immatures (eggs, larvae, and pupae) ranged from 30% on maize leaf to 74% on cotton bolls, while on the artificial diet, it was 70%. Maize, cotton, and soybean leaves provided viability of 30, 37, and 42%, respectively, revealing these leaves tissues are less favorable to the development of H. armigera immatures compared to ‘reproductive tissues’. Centesimal composition of diets compared 14 common components in all diets, which correlated significantly with larval and pupal stages and/or pupal weight. Of the 12 dietary components that significantly affected larval development time, half were negatively correlated, indicating a decrease in developmental time from their increments. In general, when insects were confined separately to substrates, the artificial diet was the most suitable for H. armigera development compared to the evaluated natural diets. However, in natural conditions, the variability of available hosts must be considered. In addition, it is acceptable for moths to select more suitable hosts for oviposition, while their larvae move to other more suitable tissues of the same plant or even migrate to other plants.

show abstract

Comparison of Biology betweenHelicoverpa zeaandHelicoverpa armigera(Lepidoptera: Noctuidae) Reared on Artificial Diets

Cited by 16 publications

References 19 publications

Is there a relationship between the density of Helicoverpa armigera Hübner (Lepidoptera: Noctuidae) and Aphis gossypii Glover (Hemiptera: Aphididae)? Spatial analysis of moth-aphid abundance across cotton fields located southeast of the Caspian Sea

Is there a relationship between the density of Helicoverpa armigera Hübner (Lepidoptera: Noctuidae) and Aphis gossypii Glover (Hemiptera: Aphididae)? Spatial analysis of moth-aphid abundance across cotton fields located southeast of the Caspian Sea

Battle in the New World: Helicoverpa armigera versus Helicoverpa zea (Lepidoptera: Noctuidae)

Role of nutritional composition in the development and survival of Helicoverpa armigera (Hübner) (Lepidoptera: Noctuidae) on artificial diet and natural hosts

Contact Info

Product

Resources

About