Spodoptera albula susceptibility to Bacillus thuringiensis-based biopesticides

[Display omitted] •Spodoptera albula larvae are polyphagous and there are no products against this pest Brazil.•Bacillus thuringiensis-based biopesticides have been used successfully against agricultural pests.•Agree, DiPel SC, and XenTari caused S. albula high mortality, with the first one more vir...

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Bibliographic Details
Published in:Journal of invertebrate pathology 2018-09, Vol.157, p.147-149
Main Authors: Gonçalves, Kelly Cristina, Boiça Júnior, Arlindo Leal, Duarte, Rogerio Teixeira, Moreira, Laís Fernanda, do Nascimento, Joacir, Polanczyk, Ricardo Antônio
Format: Article
Language:English
Subjects:
Gray-streaked armyworm moth
Microbialcontrol
Pest management
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Summary:[Display omitted] •Spodoptera albula larvae are polyphagous and there are no products against this pest Brazil.•Bacillus thuringiensis-based biopesticides have been used successfully against agricultural pests.•Agree, DiPel SC, and XenTari caused S. albula high mortality, with the first one more virulent. Single concentration and virulence (mean lethal concentration) bioassays were performed to evaluate the susceptibility of S. albula second instar larvae to seven Bacillus thuringiensis-based biopesticides. Bioassays were conducted using three replicates and repeated three times at 25 °C, 70 ± 10% RH, and a 12:12 (light/dark) photoperiod; mortality was recorded seven days after treatment. The results were subjected to a Tukey’s test and Probit analysis. Agree, DiPel SC, and XenTari achieved mortality rates of up to 80%, with the first of these being the most virulent against S. albula. Different Dipel formulations showed different degrees of larvicidal activity.
ISSN:0022-2011
1096-0805
DOI:10.1016/j.jip.2018.05.008