Sublethal Effects of the Microbial-Derived Insecticide Spinetoram on the Growth and Fecundity of the Fall Armyworm (Lepidoptera: Noctuidae)

Gao, Zupeng; Chen, Yu; He, Kanglai; Guo, Jingfei; Wang, Zhenying

doi:10.1093/jee/toab123

Cited by 20 publications

(12 citation statements)

References 30 publications

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“…The fitness and population life tables of S. frugiperda on solanaceous and oilseed crops have been determined in earlier studies [ 48 , 49 ]. Using a two-sex life table, sub-lethal effects of spinetroam against S. frugiperda growth and fecundity were determined [ 50 ]. Similarly, Iqbal et al [ 51 ] used an age-stage, two-sex life table to investigate the impact that zinc oxide generated in the culture supernatant of B. thuringiensis had on the demographic characteristics of Musca domestica .…”

Section: Introductionmentioning

confidence: 99%

Lethal, Sub-Lethal and Trans-Generational Effects of Chlorantraniliprole on Biological Parameters, Demographic Traits, and Fitness Costs of Spodoptera frugiperda (Lepidoptera: Noctuidae)

Akhtar

Afzal

Idrees

et al. 2022

Insects

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Fall armyworm [Spodoptera frugiperda (J. E. Smith, 1797)] was first reported in the Americas, then spread to all the continents of the world. Chemical insecticides are frequently employed in managing fall armyworms. These insecticides have various modes of actions and target sites to kill the insects. Chlorantraniliprole is a selective insecticide with a novel mode of action and is used against Lepidopteran, Coleopteran, Isopteran, and Dipteran pests. This study determined chlorantraniliprole's lethal, sub-lethal, and trans-generational effects on two consecutive generations (F0, F1, and F2) of the fall armyworm. Bioassays revealed that chlorantraniliprole exhibited higher toxicity against fall armyworms with a LC50 of 2.781 mg/l after 48 h of exposure. Significant differences were noted in the biological parameters of fall armyworms in all generations. Sub-lethal concentrations of chlorantraniliprole showed prolonged larval and adult durations. The parameters related to the fitness cost in F0 and F1 generations showed non-significant differences. In contrast, the F2 generation showed lower fecundity at lethal (71 eggs/female) and sub-lethal (94 eggs/female) doses of chlorantraniliprole compared to the control (127.5–129.3 eggs/female). Age-stage specific survival rate (Sxj), life expectancy (Exj) and reproductive rate (Vxj) significantly differed among insecticide-treated groups in all generations compared to the control. A comparison of treated and untreated insects over generations indicated substantial differences in demographic parameters such as net reproduction rate (R0), intrinsic rate of increase (r), and mean generation time (T). Several biological and demographic parameters were shown to be negatively impacted by chlorantraniliprole. We conclude that chlorantraniliprole may be utilized to manage fall armyworms with lesser risks.

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Section: Introductionmentioning

confidence: 99%

Lethal, Sub-Lethal and Trans-Generational Effects of Chlorantraniliprole on Biological Parameters, Demographic Traits, and Fitness Costs of Spodoptera frugiperda (Lepidoptera: Noctuidae)

Akhtar

Afzal

Idrees

et al. 2022

Insects

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“…In order to conduct the emergency prevention system against FAW, the application of EMB recommended by MARA may not only cause direct FAW larval mortality but also indirectly negatively lead to sublethal effects [18]. However, information on the sublethal effects of EMB on FAW is little [36]. The results of the present study showed that even a low dose of EMB could influence the performance of FAW parental and offspring generations.…”

Section: Discussionmentioning

confidence: 60%

Sublethal Effects of Emamectin Benzoate on Fall Armyworm, Spodoptera frugiperda (Lepidoptera: Noctuidae)

Liu

Tan

et al. 2022

Agriculture

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Fall armyworm (FAW), Spodoptera frugiperda (Lepidoptera: Noctuidae), is a highly invasive polyphagous pest that causes great economic losses to agricultural production. Emamectin benzoate (EMB) is one of the most popular biopesticides with high antipest, anti-parasitic and anti-nematode activities and low toxicity. The present study was conducted to determine the lethality of EMB to FAW for 24 h. Sublethal effects of EMB on FAW parental and offspring generations were also assessed. LC10, LC20 and LC50 EMB for 24 h on FAW third instar larvae were 0.0127 mg/L, 0.0589 mg/L, and 0.1062 mg/L, respectively. A low dose of sublethal concentrations of EMB could significantly influence the life cycle of FAW parental and offspring generations. Sublethal concentration (LC20) of EMB significantly prolonged the pupal period of male and increased the pupal weight of male but not of female, and significantly delayed the oviposition period and longevity of adult FAW. In the FAW offspring generation, sublethal concentrations significantly increased the mortality of offspring pupae and pre-adults, and reduced the development time of offspring larvae and pre-adult male and female. Sublethal concentrations (LC10 and LC20) of EMB significantly decreased the FAW oviposition period. However, only LC10 significantly reduced FAW F1 female fecundity. No significant difference was found in the intrinsic rates of natural increase (rm), finite rate of population increase (λ), and net reproductive rate (R0) of FAW offspring exposed to sublethal concentrations. This is the first study to determine the sublethal concentrations of EMB on the life table parameters of two FAW generations. These findings can provide important implications for the rational utilization of FAW insecticides.

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“…The high efficacy of spinetoram had previously been reported in various Lepidopteran pests [9][10][11][12][13][14]. Most studies also reported that more than 50% of larvae died in the first three days after exposure.…”

Section: Resultsmentioning

confidence: 92%

Potential application of spinetoram as an alternative insecticide for controlling oil palm bagworm Mahasena corbetti

Priwiratama

Rozziansha

Prasetyo

2023

IOP Conf. Ser.: Earth Environ. Sci.

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Trunk injection of acephate has been a gold standard for controlling the bagworm population in oil palm plantations. Not only poses a detrimental effect on the palm, but the continuous application of acephate also increases the risk of resistance. An efficacy test was conducted to determine the effect of spinetoram as an alternative insecticide against oil palm bagworm Mahasena corbetti. The efficacy test was conducted following a randomized block design using six application concentrations, i.e., 0, 30, 45, 60, 75, and 90 mg/L (active ingredient [a.i.]) with ten replications. The application used a spraying volume of 400 L per hectare area. Application of acephate at 1.5 g/L (a.i.) was conducted as a comparison. Spinetoram showed a comparable result to acephate in killing M. corbetti. At the lowest concentration, spinetoram caused mortality up to 68.49% three days after application (DAA) which increased to 97.11% at 14 DAA. Overall, spinetoram has great potential to be used as an alternative insecticide to acephate.

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Sublethal Effects of the Microbial-Derived Insecticide Spinetoram on the Growth and Fecundity of the Fall Armyworm (Lepidoptera: Noctuidae)

Cited by 20 publications

References 30 publications

Lethal, Sub-Lethal and Trans-Generational Effects of Chlorantraniliprole on Biological Parameters, Demographic Traits, and Fitness Costs of Spodoptera frugiperda (Lepidoptera: Noctuidae)

Lethal, Sub-Lethal and Trans-Generational Effects of Chlorantraniliprole on Biological Parameters, Demographic Traits, and Fitness Costs of Spodoptera frugiperda (Lepidoptera: Noctuidae)

Sublethal Effects of Emamectin Benzoate on Fall Armyworm, Spodoptera frugiperda (Lepidoptera: Noctuidae)

Potential application of spinetoram as an alternative insecticide for controlling oil palm bagworm Mahasena corbetti

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