Effect of Four Multiple Nucleopolyhedrovirus Isolates on the Larval Mortality and Development of<i>Spodoptera exigua</i>(Lepidoptera: Noctuidae): Determination of Virus Production and Mean Time to Death

Luna-Espino, J. C.; Castrejón-Gómez, Víctor R.; Pineda, Samuel; Figueroa, J.I.; Castillo, Ana Mabel Martínez

doi:10.1653/024.101.0201

Cited by 5 publications

(2 citation statements)

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“…A molecularly identified isolate of NPVs has been used to control Spodoptera spp. in Pakistan (Ahmad et al 2018;Ali et al 2018) and worldwide (Luna-Espino et al 2018). In the present study, after the viral infection, Spodoptera spp.…”

Section: Discussionsupporting

confidence: 47%

“…Spodoptera exigua (Hübner) and S. litura (Fabricius) (Lepidoptera: Noctuidae) are native to Asia (Farahani et al 2012). Both attack more than 90 plant species including major crops such as sugar beet, cotton, soybean, and potatoes (Fu et al 2017;Luna-Espino et al 2018). The mechanism of resistance in S. exigua has been reported against different classes of insecticides (Ishtiaq et al 2012).…”

Section: Introductionmentioning

confidence: 99%

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Evaluation of indigenous the nucleopolyhedrovirus (NPV) of Spodoptera litura (Fabricius) (Lepidoptera: Noctuidae) in combination with chlorantraniliprole against Spodoptera species

Sarwar

Maan²,

Ayub³

et al. 2021

Egypt J Biol Pest Control

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Background The armyworms, Spodoptera exigua (Hübner), and S. litura (Fabricius) (Lepidoptera: Noctuidae) are polyphagous pests of many cash crops. Heavy crop losses have been reported for the fruit and vegetable crops each year owing to the diverse impact on global economies. The present study was aimed to sort out a novel method of pest control using the insect’s own nucleopolyhedrosis virus (NPV) alone and in combination with a new chemistry insecticide chlorantraniliprole. Results In the study, the effect of indigenous isolated nucleopolyhedrovirus (NPV) and the chemical insecticide (chlorantraniliprole) formulations against the 2nd and 4th larval instars of S. litura and S. exigua, collected from the different geographical region of Punjab (Pakistan) province, was evaluated. Three concentrations of the NPV isolate, sub-lethal (1 × 104, 6 × 104 POB ml−1), lethal (3 × 105 POB ml−1), and chlorantraniliprole 0.01 μl l−1, were applied alone and in combination against the 2nd and 4th larval instars of both pest species. The lethal concentration of NPV + chlorantraniliprole exhibited synergistic interaction and caused high larval mortality against both instars, while in all other combinations, additive effect was observed. Moreover, NPV + chlorantraniliprole at lethal concentration exhibited decreased pupation, adult emergence, and egg eclosion. Conclusion The implications of using NPV alone and in combination with an insecticide are discussed briefly in this study.

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Section: Discussionsupporting

confidence: 47%