Biological characteristics of black armyworm Spodoptera cosmioides on genetically modified soybean and corn crops that express insecticide Cry proteins

Silva, Gabriela Vieira; Bueno, Adeney de Freitas; Bortolotto, Orcial Ceolin; Santos, Antonio Carlos; Pomari-Fernandes, Aline

doi:10.1016/j.rbe.2016.04.005

Cited by 12 publications

(30 citation statements)

References 26 publications

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“…However, other species of the Spodoptera complex were not controlled by this technology [ 70 ]. Other studies reported that S. cosmiodes was the most abundant species attacking Bt soybean [ 71 ] and that development and reproduction of this species were not affected by the Cry1Ac protein [ 20 ]. A field study showed that the lepidopteran pests recorded during the soybean cycle were R. nu , A. gemmatalis , H. gelotopoeon , S. frugiperda , and S. cosmioides [ 72 ] and the population abundance of the last two species was similar in Bt and non-Bt soybean.…”

Section: Discussionmentioning

confidence: 99%

“…Spodoptera cosmiodes and S. albula presented similar levels of defoliation in our test, although S. cosmiodes is the most frequent Spodoptera spp. affecting soybean crops during the vegetative and reproductive stages [ 5 , 6 , 14 , 16 , 20 , 50 ]. Another study suggested that S. cosmioides may be more adapted to chemical compounds of soybean and cotton ( Gossypium hirsutum L. (Malvaceae)), given their faster development and higher survival rates on these hosts [ 76 ].…”

Section: Discussionmentioning

confidence: 99%

“…Noctuidae) has increased and caused damage to soybean crops in Brazil [ 14 , 15 , 16 , 17 , 18 ] and Argentina [ 5 , 6 , 7 , 19 ]. Within this complex, S. cosmiodes (Walker), S. eridania (Stoll), and S. frugiperda are prominent in causing damage [ 7 , 16 , 20 ]. It is important to highlight that the damage produced by S. frugiperda in soybean crops is common in farms with grasses and pasture weeds before soybean sowing.…”

Section: Introductionmentioning

confidence: 99%

“…The great potential for defoliation of soybean plants [ 16 , 20 ] and damage to flowers and pods [ 14 ] by Spodoptera spp. and H. gelotopoeon [ 51 , 52 ] requires the adoption of control tactics to prevent yield loss.…”

Section: Introductionmentioning

confidence: 99%

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Defoliation of Soybean Expressing Cry1Ac by Lepidopteran Pests

Murúa

Vera

Herrero

et al. 2018

Insects

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Lepidoptera, stink bugs, and weevils are important pests in soybean. For lepidopteran control, insecticides and seed treatments are used. As an alternative, Bt soybean was developed to control primary pests of Lepidoptera such as Rachiplusia nu (Guenée) (Noctuidae), Chrysodeixis includens (Walker) (Noctuidae), Anticarsia gemmatalis Hübner (Erebidae), Helicoverpa gelotopoeon (Dyar) (Noctuidae), and Crocidosema aporema (Walsingham) (Tortricidae). However, the use of transgenic plants, and the resulting reduction of insecticide against target pests, may allow other pest species to become more prevalent in agricultural environments. Soybean expressing Cry1Ac against different lepidopteran nontarget and target insect pests was evaluated, and its performance was compared with non-Bt soybean with seed treatment. The treatments were Bt soybean, non-Bt soybean with seed treatment (Fortenza® diamide insecticide, Syngenta, Buenos Aires, Argentina), and non-Bt soybean without seed treatment. Larvae of H. gelotopoeon, Spodoptera albula (Walker) (Noctuidae), Spodoptera cosmiodes (Walker) (Noctuidae), Spodoptera eridania (Stoll) (Noctuidae), and Spodoptera frugiperda (J. E. Smith) (Lep.: Noctuidae) were used. The plants of each treatment were infested with larvae of each species, and the percentage of leaf damage produced by each species was recorded. The results showed that Bt soybean provided control of H. gelotopoeon and had a suppressive effect on S. frugiperda and S. albula. However, S. eridania and S. cosmiodes were not susceptible to the Cry1Ac protein in MON 87701 × MON 89788 soybean when evaluated by greenhouse infestation. Considering the performance of each species using non-Bt soybean without seed treatment, S. eridania would represent a potential risk in soybean crops.

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Section: Discussionmentioning

confidence: 99%

Section: Discussionmentioning

confidence: 99%

Section: Introductionmentioning

confidence: 99%

Section: Introductionmentioning

confidence: 99%

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Defoliation of Soybean Expressing Cry1Ac by Lepidopteran Pests

Murúa

Vera

Herrero

et al. 2018

Insects

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“…Similar results were observed for S. eridania fed on Cry1Ac/ Cry1F-cotton. 30 Previous studies also reported that S. eridania and S. cosmioides had naturally low susceptibility to Cry1Ac and Cry1F proteins in diet bioassays 13,[31][32][33][34] and to Cry1Ac-soybean 13,35 and Cry1Ac-cotton. 36,37 Consistent with these findings, other species from the Spodoptera genus including S. frugiperda, S. exigua (Hübner) and S. litura (F.) exhibited low susceptibility to Cry1Ac-soybean, 13,37 Cry1Ac-cotton 24,25,38,39 and Cry1Ac/Cry1Fcotton.…”

Section: Discussionmentioning

confidence: 99%

Survival and development of Spodoptera eridania, Spodoptera cosmioides and Spodoptera albula (Lepidoptera: Noctuidae) on genetically‐modified soybean expressing Cry1Ac and Cry1F proteins

Machado

Rodrigues

Somavilla

et al. 2020

Pest Management Science

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BACKGROUND: Spodoptera eridania (Stoll), S. cosmioides (Walker) and S. albula (Walker) (Lepidoptera: Noctuidae) are considered secondary pests of soybean in South America. The genetically-modified soybean DAS-444Ø6-6 × DAS-81419-2 with tolerance to 2,4-dichlorophenoxyacetic acid (2,4-D), glyphosate and ammonium glufosinate herbicides (event DAS-444Ø6-6) and insect-resistance due to expression of Cry1Ac and Cry1F Bt proteins (event DAS-81419-2) may provide a potential tool for integrated pest management (IPM) of these species in soybean fields. Based on this, we conducted bioassays to evaluate the survival and development of S. eridania, S. cosmioides and S. albula fed on Cry1Ac/Cry1F-soybean leaf tissue. RESULTS: Spodoptera eridania and S. cosmioides fed on Cry1Ac/Cry1F-soybean showed longer developmental time, lower larval and egg to adult survival compared to those fed on non-Bt soybean, reducing the population growth of these species. Spodoptera albula also had lower larval survival and number of insects that reached adulthood on Cry1Ac/Cry1F-soybean. However, no significant effects of Cry1Ac/Cry1F-soybean on population growth parameters were detected in this species. CONCLUSIONS: Soybean with stacked events DAS-444Ø6-6 × DAS-81419-2 expressing Cry1Ac/Cry1F Bt proteins provide population suppression of S. eridania and S. cosmioides. However, this Bt soybean had minimal effects on S. albula, and is unlikely to have negative population-level effects on this species. It is expected that under field conditions, other control tactics must be integrated with Cry1Ac/Cry1F-soybean for the management of these Spodoptera species.

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The role of genetically engineered soybean and Amaranthus weeds on biological and reproductive parameters of Spodoptera cosmioides (Lepidoptera: Noctuidae)

Jerez

Hill

Pereira

et al. 2022

Pest Management Science

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BACKGROUND: In soybean fields containing insecticide-and herbicide-resistant genetically engineered varieties, some weed species have increasingly become difficult to manage and may favor the population growth of secondary pests like Spodoptera cosmioides (Walker) (Lepidoptera: Noctuidae). To test this hypothesis, we measured life-history traits, population growth parameters and adult nutrient content of S. cosmioides reared on foliage from four Amaranthus species, from Cry1Ac Bt and non-Bt soybean varieties, and on meridic artificial diet. RESULTS: Larvae reared on A. palmeri and A. spinosus had a shorter development time (5-7 days) than larvae raised on the soybean varieties and A. hybridus. Armyworm survival probability was zero on A. viridis and highest (80% and 71%) on soybeans and A. palmeri. The latter and the artificial diet produced the heaviest larvae and pupae, in contrast to the non-Bt soybean variety. Body nutrient content diverged mostly for adults reared on artificial diet compared with those raised on the soybean varieties. The intrinsic rate of population increase (overall fitness) was 27.88% higher for the armyworms on A. palmeri, Cry1Ac Bt soybean and artificial diet compared with those on non-Bt soybean, A. spinosus and A. hybridus.CONCLUSIONS: Cry1Ac soybean fields infested by some Amaranthus weeds, especially A. palmeri, are conducive to the population growth of S. cosmioides. Integrated pest management programs may be needed to properly manage S. cosmioides in soybean fields, with surveillance for population peaks and judicious control measures when needed.

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Biological characteristics of black armyworm Spodoptera cosmioides on genetically modified soybean and corn crops that express insecticide Cry proteins

Cited by 12 publications

References 26 publications

Defoliation of Soybean Expressing Cry1Ac by Lepidopteran Pests

Defoliation of Soybean Expressing Cry1Ac by Lepidopteran Pests

Survival and development of Spodoptera eridania, Spodoptera cosmioides and Spodoptera albula (Lepidoptera: Noctuidae) on genetically‐modified soybean expressing Cry1Ac and Cry1F proteins

The role of genetically engineered soybean and Amaranthus weeds on biological and reproductive parameters of Spodoptera cosmioides (Lepidoptera: Noctuidae)

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