Effect of the interaction between Anticarsia gemmatalis multiple nucleopolyhedrovirus and Epinotia aporema granulovirus, on A. gemmatalis (Lepidoptera: Noctuidae) larvae

Biedma, Marina Elizabeth; Salvador, Ricardo; Ferrelli, María Leticia; Sciocco-Cap, Alicia; Romanowski, Vı́ctor

doi:10.1016/j.biocontrol.2015.07.006

Cited by 10 publications

(16 citation statements)

References 30 publications

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“…For example, the mixture between the GV of Trichoplusia ni and the NPV of Anticarsia gemmatalis , the GV of X. c-nigrum and the NPV of M. brassicae and mixture between the GV of Helicoverpa armigera and the NPV of L. dispar , presented MTD reductions of 2, 48 and 55 h respectively [25,26,27,28,29]. Potential virulence factors of GV associated with an enhancer effect over NPV has been described, these factors include proteins contained in the occlusion bodies of different granulovirus isolates [23,26,27,30,31]. For example, alkaline soluble proteins of capsules (GVPs) of X. c-nigrum GV mixed with M. brassicae NPV, resulted in a significant increase of NPV infections (from 53% to 66%) under field conditions [30].…”

Section: Discussionmentioning

confidence: 99%

“…For example, alkaline soluble proteins of capsules (GVPs) of X. c-nigrum GV mixed with M. brassicae NPV, resulted in a significant increase of NPV infections (from 53% to 66%) under field conditions [30]. This enhancement has been attributed to proteins as enhancins and chitinases but also proteins with binding chitin capacity as per os infection factor 2 or GP37 [7,29,31,32,33]. These kinds of proteins can digest the proteins of the PM from infected insects by altering its structural integrity and increasing its permeability, allowing a faster entry of the viral particles into the cells improving the infection process [7,29,34,35].…”

Section: Discussionmentioning

confidence: 99%

“…On the other hand, the enhancing action of chitin-binding proteins from granuloviruses that do not encode enhancin homologous proteins have been described, for example Epinotia aporema GV [31]. In this case, the GP37 protein seems to have a role in the disruption of PM by its chitin-binding properties [32].…”

Section: Discussionmentioning

confidence: 99%

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Bio-Insecticidal Potential of Nucleopolyhedrovirus and Granulovirus Mixtures to Control the Fall Armyworm Spodoptera frugiperda (J.E. Smith, 1797) (Lepidoptera: Noctuidae)

Otálora

Valderrama

Ramos

et al. 2019

Viruses

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The ability of the isolate VG008 of S. frugiperda granulovirus (SpfrGV) to enhance the infectivity of the isolate SfCOL of S. frugiperda multiple nucleopolyhedrovirus (SpfrMNPV) was evaluated on S. frugiperda larvae. Bioassays were performed with mixtures by using different proportions 90%:10% (M1), 95%:5% (M2) and 97.5%:2.5% (M3) of SfCOL:VG008, respectively. All mixtures showed higher insecticidal activity that SfCOL. The mixture M3 showed the highest enhancement of SfCOL reducing 11.40 times the Mean Lethal Concentration and 96 h in the Mean Time to Death. The enhancer activity of proteins derived from VG008 (GVPs) were also evaluated in mixture with SfCOL. The GVPs increased 27% larval mortality caused by SfCOL and damaged the peritrophic membrane of S. litura larvae, suggesting that the key point in this enhancing activity is the initial step of the larva colonization, the midgut infection. M3 was formulated and evaluated under greenhouse conditions in maize plants using different doses. The highest efficacy was obtained with the highest dose of M3 (8 × 1011 OBs/ha), which was similar to that found when formulated SfCOL was applied using an approximately twofold higher dose. The viral mixture M3 was selected as the active ingredient for developing a new biopesticide for a more efficient management of the pest in the field.

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Section: Discussionmentioning

confidence: 99%

Section: Discussionmentioning

confidence: 99%

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Bio-Insecticidal Potential of Nucleopolyhedrovirus and Granulovirus Mixtures to Control the Fall Armyworm Spodoptera frugiperda (J.E. Smith, 1797) (Lepidoptera: Noctuidae)

Otálora

Valderrama

Ramos

et al. 2019

Viruses

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“…Encerrado o jogo, a soma dos ganhos é sempre zero (as perdas são ganhos negativos). Manter uma plantação sem o uso de agrotóxico a torna muito mais vulnerável à ação das pragas, o que induz à perda da produção [9], [2]. Consequentemente, cresce o valor final do produto, tendo em vista uma menor produção por área comparativamente àquela obtida com emprego de agrotóxico.…”

Section: Materiais E Métodosunclassified

Ecologia Matemática: um modelo para controle de pragas com emprego da teoria dos jogos

Monteiro

Barbosa

Moura

2016

CadMAT

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A teoria dos jogos é utilizada neste trabalho com a teoria de controle para modelar matematicamente um problema em ecologia: o controle de pragas de uma dada lavoura, o caso da soja foi o escolhido. Trata-se de uma pesquisa relevante, tanto no contexto ecológico quanto econômico, o que a torna um tópico frequentemente pesquisado, e com diferentes ferramentas. Nossa abordagem acopla técnicas matemáticas contínuas e discretas, uma vez que aplica às equações de Lotka-Volterra para sistemas de presa-predador o instrumental da teoria dos jogos. Este é um tratamento mais simples do que aquele baseado no controle ótimo, o que permite sua maior disseminação.

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“…Anticarsia gemmatalis (Hübner, 1818) (Lepidoptera: Erebidae) is a tropical and subtropical species restricted to the American continent [4], being also considered a pest of legumes [5]. This pest can hinder the soy production potential, causing up to 100% defoliation and resulting in reduced crop yield [6].…”

Section: Introductionmentioning

confidence: 99%

Bioactivity of Schinus molle L. and Schinus terebinthifolia Raddi. Essential Oils on Anticarsia gemmatalis (Hübner 1818)

Vicenço

Silvestre

Silva

et al. 2020

Braz. arch. biol. technol.

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Anticarsia gemmatalis is one of the main pests of the soybean crop, being controlled mainly with agrochemicals. The environmental and health risks, as well as the development of resistance by the pests, has led to the search for alternative control measures, aiming to use more eco-friendly procedures. The objective of this research was to evaluate the chemical composition and the bioactivity of Schinus molle and Schinus terebinthifolia essential oils (EOs) on A. gemmatalis. The major compound in both EOs was α-pinene (60.04 wt.% for S. molle and 38.49 wt.% for S. terebinthifolia). Bioassays were carried out with third instar larvae, with five replicates and each replicate with ten larvae, totaling 50 larvae per treatment. The oils were incorporated in the artificial diet (0.1, 0.5, 1.0, 1.5, and 2.0% v/v). The controls were: water, Tween-80 ® 0.5% v/v, and novaluron 0.075% v/v. According to the Probit method, the S. terebinthifolia EO presented a LC50 of 1.74% v/v (1.58-1.97% v/v); it was not possible to determine the LC50 for the S. molle EO. The mortality percentage after 24 and 48 h was 52% and 30% at 2.0% v/v for S. terebinthifolia and S. molle oil, respectively. HIGHLIGHTS  S. molle leaf had an EO yield of 0.3% m/v; S. terebinthifolia had 0.2% m/v.  Both EOs presented α-pinene as the major compound.  S. molle EO induced 30% mortality of A. gemmatalis in 72 h.  S. terebinthifolia EO induced 70% mortality of A. gemmatalis in 72 h.  The LC50 for S. terebinthifolia EO was 1.74% v/v (1.58-1.97% v/v). 2 Vicenço, C.B.; et al.

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Effect of the interaction between Anticarsia gemmatalis multiple nucleopolyhedrovirus and Epinotia aporema granulovirus, on A. gemmatalis (Lepidoptera: Noctuidae) larvae

Cited by 10 publications

References 30 publications

Bio-Insecticidal Potential of Nucleopolyhedrovirus and Granulovirus Mixtures to Control the Fall Armyworm Spodoptera frugiperda (J.E. Smith, 1797) (Lepidoptera: Noctuidae)

Bio-Insecticidal Potential of Nucleopolyhedrovirus and Granulovirus Mixtures to Control the Fall Armyworm Spodoptera frugiperda (J.E. Smith, 1797) (Lepidoptera: Noctuidae)

Ecologia Matemática: um modelo para controle de pragas com emprego da teoria dos jogos

Bioactivity of Schinus molle L. and Schinus terebinthifolia Raddi. Essential Oils on Anticarsia gemmatalis (Hübner 1818)

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