scholarly journals Comparative biology of Helicoverpa armigera (Hübner) (Lepidoptera: Noctuidae) in Eucalyptus spp.

2020 ◽  
Vol 9 (7) ◽  
pp. e729974627
Author(s):  
Franciele Muchalak ◽  
Elisângela de Souza Loureiro ◽  
Luis Gustavo Amorim Pessoa
Keyword(s):  
Helicoverpa Armigera ◽  
Artificial Diet ◽  
Statistical Difference ◽  
Plant Protection ◽  
Plant Protection Products ◽  
Mato Grosso ◽  
Forestry Sector ◽  
Helicoverpa Armígera ◽  
Forestry Plantations ◽  
Lepidoptera Noctuidae

The Brazilian forestry sector has great importance in the economy and the sustainability of the country. With the great expansion of monoculture, and many times the proximity of agricultural and forestry plantations favors the migration or establishment of pests. The Helicoverpa armigera is a pest extremely polyphagous that occurs mainly in agricultural crops, and that casually was found feeding on eucalyptus plantations in the region of Chapadão do Sul, State of Mato Grosso do Sul, Brazil. In this study the parameters of consumption, size, and longevity of caterpillars were measured. The experimental design was completely randomized with five treatments (clones I 144; 08; Urocam VM01; AEC 1528 and artificial diet, this being a witness) and six replicates of 10 caterpillar larvae. The clones were grown in greenhouse conditions to produce leaves free of chemical plant protection products and with good nutritional status from which they have removed the sheets and supplied to the caterpillars. There was no statistical difference between the clones tested in none of the evaluated parameters. Only the artificial diet showed statistical difference concerning the size. The caterpillars fed on leaves of the clones have not completed their development, suggesting that the effect of antibiosis interfering on the biology of H. armigera not reaching status of pest.

scholarly journals Mapping the occurrence and density of Helicoverpa armigera (Hbner) (Lepidoptera: Noctuidae) in Mato Grosso do Sul State, Brazil

2016 ◽  
Vol 8 (4) ◽  
pp. 28-33
Author(s):  
Fernando Jurca Grigolli Jose ◽  
Jose Avila Crebio ◽  
Nonato de Oliveira Harley ◽  
Vital Tomquelski Germison ◽  
Santos Viviane
Keyword(s):  
Helicoverpa Armigera ◽  
Mato Grosso ◽  
Helicoverpa Armígera ◽  
Lepidoptera Noctuidae ◽  
Mato Grosso Do Sul

scholarly journals Occurrence of Helicoverpa armigera (Lepidoptera: Noctuidae) on tomato in the Espírito Santo state

2015 ◽  
Vol 33 (1) ◽  
pp. 101-105 ◽  
Author(s):  
Dirceu Pratissoli ◽  
Victor LS Lima ◽  
Victor D Pirovani ◽  
Wallace L Lima
Keyword(s):  
Helicoverpa Armigera ◽  
Tomato Crop ◽  
Mato Grosso ◽  
Tomato Plants ◽  
Espírito Santo ◽  
Insect Identification ◽  
The World ◽  
Helicoverpa Armígera ◽  
Espirito Santo ◽  
Lepidoptera Noctuidae

The species Helicoverpa armigera is one of the most important polyphagous and widely distributed pests in the world. Its occurrence was recently reported on soybean and cotton, in the states of Goiás, Mato Grosso and Bahia, Brazil. Tomato is also host species of H. armigera, among the 200 registered, being one of the most important crops in the Espírito Santo state. The production of tomatoes is fully dedicated for fresh consumption and the damage caused by H. armigera in fruits make unfeasible marketing. Therefore, this study aimed to record the occurrence of H. armigera in tomato crop in the Espírito Santo state. From February 2012 to October 2013, insects were collected from tomato plants in some producing areas. After insect identification, by dissection of the genitalia of adult moths, it was possible to confirm the occurrence of H. armigera on tomato crop in the Espírito Santo state.

scholarly journals Primeiro registro de ocorrência de Helicoverpa armigera (Hübner) (Lepidoptera: Noctuidae) no Brasil

2013 ◽  
Vol 43 (1) ◽  
pp. 110-113 ◽  
Author(s):  
Cecília Czepak ◽  
Karina Cordeiro Albernaz ◽  
Lúcia Madalena Vivan ◽  
Humberto Oliveira Guimarães ◽  
Tiago Carvalhais
Keyword(s):  
Helicoverpa Armigera ◽  
Mato Grosso ◽  
Helicoverpa Armígera ◽  
Lepidoptera Noctuidae ◽  
Helicoverpa Armigera Hubner

Neste trabalho, é relatada a primeira ocorrência de Helicoverpa armigera (Hübner) (Lepidoptera: Noctuidae) no Brasil, que era considerada, até o momento, uma praga quarentenária. A notificação ocorreu nos Estados de Goiás, na cultura da soja; Bahia, em tiguera de soja; e Mato Grosso, na cultura do algodoeiro.

scholarly journals Moving to Keep Fit: Feeding Behavior and Movement of Helicoverpa armigera (Lepidoptera: Noctuidae) on Artificial Diet With Different Protein: Carbohydrate Ratios

2019 ◽  
Vol 19 (5) ◽  
Author(s):  
Peng Wang ◽  
Michael J Furlong ◽  
Thomas K Walsh ◽  
Myron P Zalucki
Keyword(s):  
Growth Rate ◽  
Relative Growth Rate ◽  
Helicoverpa Armigera ◽  
Artificial Diet ◽  
Pest Species ◽  
Relative Growth ◽  
First Instar ◽  
Helicoverpa Armígera ◽  
Lepidoptera Noctuidae ◽  
Third Instar Larvae

Abstract Insect herbivores can modify their foraging behavior to obtain a balanced food intake, and they tend to move between food sources with different nutrient values. We investigated this movement in early instar larvae of Helicoverpa armigera (Hübner) (Lepidoptera: Noctuidae) using a putative optimal artificial diet (OP) and high protein (HP) and high carbohydrate (HC) artificial diets based on protein (p) and carbohydrate (c) ratios. Larvae were allowed to choose between the same kind of diet cubes (effectively no-choice), or diet cubes with different p: c ratios. In no-choice tests, we found that first instar larvae remained longest on OP diet and spent the least time on HC diet, while third instar larvae remained longest on HC diet and spent least time on OP diet. First instar larvae moved the most when provided with HC diet, while third instar larvae moved most when provided with OP diet. However, both stages moved the least when allowed to choose between diet cubes with different p: c ratios. The relative growth rate decreased when larvae increased their movement, but this influence was not evident when larvae fed on HC diet. Larvae that fed only on HC diet had the highest relative growth rate, followed by larvae with access to all diets simultaneously, indicating a behavior to mix nutrient intake. We relate these findings to behavior of this major pest species under field conditions.

scholarly journals Identificação morfológica e molecular de Helicoverpa armigera (Lepidoptera: Noctuidae) e ampliação de seu registro de ocorrência no Brasil

2013 ◽  
Vol 48 (6) ◽  
pp. 689-692 ◽  
Author(s):  
Alexandre Specht ◽  
Daniel Ricardo Sosa-Gómez ◽  
Silvana Vieira de Paula-Moraes ◽  
Silvia Akimi Cavaguchi Yano
Keyword(s):  
Helicoverpa Armigera ◽  
Mato Grosso ◽  
Helicoverpa Armígera ◽  
Distrito Federal ◽  
Lepidoptera Noctuidae

O objetivo deste trabalho foi descrever métodos para a caracterização morfológica e molecular de Helicoverpa armigera e ampliar o registro de ocorrência da praga no Brasil. As mariposas foram obtidas de lagartas coletadas nas culturas de algodão, milho e soja, com uso de armadilhas luminosas. As coletas foram realizadas na Bahia, no Distrito Federal, no Mato Grosso e no Paraná. A identificação foi baseada na genitália masculina e nas análises das sequências dos genes mitocondriais do citocromo B e da região cox1-tRNALeu-cox2. A genitália masculina foi comparada com as descrições morfológicas na literatura, e as sequências de genes, com as depositadas no GenBank. Ambas as análises confirmaram a presença de H. armigera nos locais de coleta. Ampliou-se o registro de ocorrência da praga para a região Sul do país.

scholarly journals Comparative TMT Proteomic Analysis Unveils Unique Insights into Helicoverpa armigera (Hübner) Resistance in Cajanus scarabaeoides (L.) Thouars

2021 ◽  
Vol 22 (11) ◽  
pp. 5941
Author(s):  
Abigail Ngugi-Dawit ◽  
Isaac Njaci ◽  
Thomas J.V. Higgins ◽  
Brett Williams ◽  
Sita R. Ghimire ◽  
...  
Keyword(s):  
Host Plant ◽  
Helicoverpa Armigera ◽  
Plant Resistance ◽  
Host Plant Resistance ◽  
Proteomic Analysis ◽  
Artificial Diet ◽  
Growth Stages ◽  
Genetic Base ◽  
Helicoverpa Armígera ◽  
Helicoverpa Armigera Hubner

Pigeonpea [Cajanus cajan (L.) Millspaugh] is an economically important legume playing a crucial role in the semi-arid tropics. Pigeonpea is susceptible to Helicoverpa armigera (Hübner), which causes devastating yield losses. This pest is developing resistance to many commercially available insecticides. Therefore, crop wild relatives of pigeonpea, are being considered as potential sources of genes to expand the genetic base of cultivated pigeonpea to improve traits such as host plant resistance to pests and pathogens. Quantitative proteomic analysis was conducted using the tandem mass tag platform to identify differentially abundant proteins between IBS 3471 and ICPL 87 tolerant accession and susceptible variety to H. armigera, respectively. Leaf proteome were analysed at the vegetative and flowering/podding growth stages. H. armigera tolerance in IBS 3471 appeared to be related to enhanced defence responses, such as changes in secondary metabolite precursors, antioxidants, and the phenylpropanoid pathway. The development of larvae fed on an artificial diet with IBS 3471 lyophilised leaves showed similar inhibition with those fed on an artificial diet with quercetin concentrations with 32 mg/25 g of artificial diet. DAB staining (3,3’-diaminobenzidine) revealed a rapid accumulation of reactive oxygen species in IBS 3471. We conclude that IBS 3471 is an ideal candidate for improving the genetic base of cultivated pigeonpea, including traits for host plant resistance.

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