Low susceptibility of Spodoptera cosmioides, Spodoptera eridania and Spodoptera frugiperda (Lepidoptera: Noctuidae) to genetically-modified soybean expressing Cry1Ac protein

Bernardi, Oderlei; Sorgatto, Rodrigo José; Barbosa, Alexandre D.; Domingues, Felipe A.; Dourado, Patrick M.; Carvalho, Rumão Batista Nunes de; Martinelli, Samuel; Head, Graham P.; Omoto, Celso

doi:10.1016/j.cropro.2014.01.001

Cited by 95 publications

(107 citation statements)

References 27 publications

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“…To manage the populations of the S. frugiperda, control strategies have been mainly adopted; chemical control by use of synthetic products, the genetic control with the use of genetically modified plantes (GMOs) (Bernardi et al, 2014) and biological control through the use of organic extracts (Scapinello et al, 2014;Sosa et al, 2017). The control based into B. thuringiensis (Bt) with the formulation of maize-Bt hybrids was also been used for controlling the fall armyworm (Farias et al, 2014;Niu et al, 2017).…”

Section: Discussionmentioning

confidence: 99%

The fall armyworm <i>Spodoptera frugiperda</i> (J.E. Smith), a new pest of maize in Africa: biology and first native natural enemies detected

Tendeng¹,

Labou²,

Diatte³

et al. 2019

Int. J. Bio. Chem. Sci

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The fall armyworm (FAW), Spodoptera frugiperda is a real threat to food security. It is able to totally destroy the cereal crops in a country. It can cause famine in Sub-Saharan Africa where cereals are subsistence crops. Reported in Africa in 2016, the FAW succeded to colonize 47 countries in one year. Its migration capacities wich are of around 100 km per night can allow it have fully infest a country like Senegal (ca 200 000 km²) in less than a week. The FAW is very difficult to fight because resistant to several insecticides. Invasive species often invade a new environment without their natural enemies, which promotes their multiplication and damage to crops. To estimate the generation number per year and evaluate the impact of biological control of indigenous natural enemies on the FAW, larvae were collected in maize fields and monitored in the laboratory. The results show that the development cycle of S. frugiperda takes 25 days on average, that is to say fifteen (15) generations per year. The study confirms the presence of three species of native natural enemies, a nematode Hexamermis sp. and two Hymenopterans Chelonus sp. and Campoletis sp. detected for the first time in West Africa on FAW larvae. The overall parasitism rate is 25.8%. These native natural enemies are a very promising means of control against FAW populations. The introduction of agricultural techniques to promote the maintenance and the proliferation of the FAW auxiliaries is an alternative to the use of pesticides.

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Section: Discussionmentioning

confidence: 99%

The fall armyworm <i>Spodoptera frugiperda</i> (J.E. Smith), a new pest of maize in Africa: biology and first native natural enemies detected

Tendeng¹,

Labou²,

Diatte³

et al. 2019

Int. J. Bio. Chem. Sci

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“…Ministério da Agricultura and Abastecimento 2013). Although new technologies such as Bt-transgenic soybean expressing the Cry1Ac toxin have been commercially released in Brazil (Justiniano et al 2014), there is little expectation that they will be effective in controlling SAW due to the low toxicity of Cry1Ac to S. eridania larvae (Santos et al 2009, Bernardi et al 2014.…”

Section: Introductionmentioning

confidence: 99%

Antibiosis in Soybean Genotypes and the Resistance Levels to Spodoptera eridania (Cramer) (Lepidoptera: Noctuidae)

et al. 2014

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The southern armyworm (SAW) Spodoptera eridania (Cramer) is one of the most common armyworm species defoliating soybeans. Preliminary screening trials have indicated that some soybean genotypes exhibit resistance to SAW. Therefore, in this study, we evaluated the development of SAW larvae fed on ten soybean genotypes in order to identify genotypes with antibiosis-type resistance. Neonate SAW larvae were daily fed with young leaves collected from plants at the vegetative growth stages V4-V5. Larval development and survival were recorded. Genotypes PI 227687 and PI 227682 delayed larval, pupal, and larva-adult development and yielded larvae with the lowest weight and survival and pupae with the lowest weight. Genotypes IAC 100 and DM 339 also negatively affected larval and pupal development and larval survival but at a lower level. Based on our results, the soybean lines PI 227687 and PI 227682 could be used as sources of genes for soybean breeding programs aiming to develop high yield, SAW-resistant cultivars. Moreover, further trials must be carried out under field conditions to validate if the commercial cultivars IAC 100 and DM 339, which expressed moderate levels of antibiosis-type resistance in the laboratory, are effective in suppressing SAW larvae populations.

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“…5 In recent years, S. cosmioides ('black armyworm') populations have increased in Bt soybean crops grown in Argentina, reaching high densities, because the species is much less susceptible than other lepidopteran pests to the toxic Cry1Ac protein. [6][7][8] Alternative control methods, such as the use of biocontrol agents, have been proposed, but synthetic insecticides remain the most effective and reliable control methods. 5 The group of insecticides known as anthranilic diamides provide effective control for many lepidopteran pests.…”

Section: Introductionmentioning

confidence: 99%

Lethal and sublethal effects of chlorantraniliprole on Spodoptera cosmioides (Lepidoptera: Noctuidae)

Lutz

Bertolaccini

Scotta

et al. 2018

Pest Management Science

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Low susceptibility of Spodoptera cosmioides, Spodoptera eridania and Spodoptera frugiperda (Lepidoptera: Noctuidae) to genetically-modified soybean expressing Cry1Ac protein

Cited by 95 publications

References 27 publications

The fall armyworm <i>Spodoptera frugiperda</i> (J.E. Smith), a new pest of maize in Africa: biology and first native natural enemies detected

The fall armyworm <i>Spodoptera frugiperda</i> (J.E. Smith), a new pest of maize in Africa: biology and first native natural enemies detected

Antibiosis in Soybean Genotypes and the Resistance Levels to Spodoptera eridania (Cramer) (Lepidoptera: Noctuidae)

Lethal and sublethal effects of chlorantraniliprole on Spodoptera cosmioides (Lepidoptera: Noctuidae)

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