Feeding preference of Spodoptera frugiperda on different sorghum genotypes

Oliveira, Carlos Eduardo da Silva; Silva, Celi Santana; Zóz, Tiago; Zoz, André; Andrade, Agner de Freitas; Witt, Travis W.

doi:10.1590/1808-1657000992018

Cited by 6 publications

(4 citation statements)

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“…The findings indicate that non-Bt maize can significantly increase larval survival and pupal biomass, in addition to decreasing development time. The general nutritional status and fitness of larvae is reflected in pupal stage characteristics such as pupation rate, cycle length, and biomass (Oliveira et al, 2019). In this study, the pupae were heavier and the most fertile females were from non-Bt maize.…”

Section: Discussionmentioning

confidence: 65%

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Biological Parameters and Fertility Life Table of Spodoptera frugiperda in Different Host Plants

Carvalho¹,

Machado²,

Neitzke³

et al. 2022

JAS

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This work evaluated the biology and life table parameters of susceptible populations (Sus) of Spodoptera frugiperda to insecticides and Bt proteins, in conventional maize, Bt YieldGard VT PRO™ (Cry1A. 105/Cry2Ab) and PowerCore™ (Cry1A.105/Cry2Ab/Cry1F), millet and sorghum to better feeding behavior in this population. The following parameters were assessed: width of the cephalic capsule, duration and viability of larval, pupal and egg stages, pupal weight, sex ratio, adult longevity, pre-oviposition and oviposition period and daily fecundity The larval diet affected most of the parameters analyzed, with the exception of adult longevity and the period of embryonic development. The sus population completed its development in all hosts except in the VT PRO™ and PowerCore™ technologies. Non-Bt maize (87.50%) had higher larval viability, with larvae pupating nearly twice as fast (14,364 days) than sorghum (22,663 days) and millet (25,153 days), with the lowest viability (25.63%) and longest larval stage observed in millet. The pre-oviposition period was significantly shorter in maize (2.2 days) and longer in millet (6.5 days). Females fed on maize (1872.3) also showed higher total fertility than sorghum (671.0) and millet (405.0). Our results suggest that millet is the least suitable host for the development of this population. Although maize is considered the preferred host, S. frugiperda was able to complete its development in most of the tested hosts, indicating that sorghum and millet, plants commonly cultivated in the main producing regions of Brazil, can sustain susceptible populations in the field, although not as productively as maize and can act as a reservoir for the pest between seasons.

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Section: Discussionmentioning

confidence: 65%

“…and sedge (Cyperus rotundus L.) (Dias et al, 2016;Montezano et al, 2018;Malaquias et al, 2020). Among them are also cotton in the flowering stage, soybean, millet (Pennisetum americanum L.) and sorghum (Sá et al, 2009;Dias et al, 2016;Oliveira et al, 2019).…”

Section: Introductionmentioning

confidence: 99%

Biological Parameters and Fertility Life Table of Spodoptera frugiperda in Different Host Plants

Carvalho¹,

Machado²,

Neitzke³

et al. 2022

JAS

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“…FAW's preference for sorghum depends on the variety grown. It was reported that among 7 sorghum varieties evaluated, the Agromen 50A40 variety showed a lower attractiveness rating for the S. frugiperda [9].…”

Section: Introductionmentioning

confidence: 99%

Collection and inventory of pests on several sorghum varieties

Nonci,

Sebayang,

Arief

2023

IOP Conf. Ser.: Earth Environ. Sci.

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The research with aim of collecting and inventorying several pests of sorghum (Sorghum bicolor L. Moech) crops was carried out in Bajeng Agricultural Technology Research and Development Installation, Gowa District, South Sulawesi, and Entomology Laboratory of Indonesian Cereals Research Institute from March until October 2021 and from March until July 2022. Observations on 11 sorghum varieties (Mandau, UPCA-S1, Numbu, Kawali, Super 1, Super 2, Suri 3, Suri 4, Soper 6, Soper 7, and Soper 9) and several types of pests attacked were carried out at vegetative and generative stages by determined 25 plant samples at random. The results in 2021 showed that at vegetative stages, pests were Ostrinia furnacalis Gueene, Sesamia inferens Walker, Spodoptera frugiferda JE Smith, and Aphis sp. each with a population of 1-3 larvae/plant, 5-13 larvae/plant, and 1-2 larvae/plant respectively, while the scoring of Aphis sp. between 5-7 for all varieties of sorghum. At the generative stage of O. furnacalis and Nola sorghiella Riley was found with a population between 3-5 larvae/panicle, 9-13 larvae/panicle, and a score of Aphis sp. between 5–9. In 2022 at the vegetative and generative stage, the same pests’ species were found with O. furnacalis were 1-2 larvae/plant, S. inferens 3-5 larvae/plant, and S. frugiferda 1-2 larvae/plant. The score of Aphis sp. was between 5-7 for all varieties. At the generative stage, O. furnacalis, N. sorghiella, Heliothis sp., and Aphis sp. were found. Each pest species was 3-5 larvae/panicle, 9-13 larvae/panicle, and 1-2 larvae/panicle while scoring for Aphis sp. between 5-9.

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“…Field-evolved resistance to Bt maize by FAW has also been reported in Puerto Rico (Storer et al ., 2010), U.S. (Huang et al ., 2014) and Argentina (Chandrasena et al ., 2018). In addition to its damage on maize and cotton crops, FAW is known to cause economic losses in sorghum ( Sorghum bicolor L. Moench) (Oliveira et al ., 2019), millet ( Pennisetum americanum (L.) Leeke) (Favetti et al ., 2017), and soybean ( Glycine max (L.) Merril) (Machado et al ., 2020).…”

Section: Introductionmentioning

confidence: 99%

Assessing fitness costs of the resistance of Spodoptera frugiperda (Lepidoptera: Noctuidae) to pyramided Cry1 and Cry2 insecticidal proteins on different host plants

Garlet

Muraro

Godoy

et al. 2022

Bull. Entomol. Res.

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Fall armyworm (FAW), Spodoptera frugiperda (Smith), is one of the major pests targeted by transgenic crops expressing insecticidal proteins from Bacillus thuringiensis (Bt) Berliner. However, FAW presents a high capacity to develop resistance to Bt protein-expressing crop lines, as reported in Brazil, Argentina, Puerto Rico and the southeastern U.S. Here, FAW genotypes resistant to pyramided maize events expressing Cry1F/Cry1A.105/Cry2Ab2 (P-R genotype) and Cry1A.105/Cry2Ab2 (Y-R genotype) from Brazil were used to investigate the interactions between non-Bt hosts (non-Bt maize, non-Bt cotton, millet and sorghum) and fitness costs. We also tested a FAW genotype susceptible to Bt maize and F1 hybrids of the resistant and susceptible genotypes (heterozygotes). Recessive fitness costs (i.e., costs affecting the resistant insects) were observed for pupal and neonate to adult survival of the P-R genotype on non-Bt cotton; larval developmental time of the P-R genotype on millet and sorghum; larval and neonate-to-adult developmental time of the Y-R genotype on non-Bt cotton and sorghum; the fecundity of the Y-R genotype on non-Bt cotton; and mean generation time of both resistant genotypes. However, on non-Bt cotton and non-Bt maize, the P-R genotype had a higher fitness (i.e., fitness benefits), displaying greater fecundity and rates of population increases than the Sus genotype. Non-recessive fitness costs (i.e., costs affecting heterozygotes) were found for fecundity and population increases on millet and sorghum. These findings suggest that, regardless of the disadvantages of the resistant genotypes in some hosts, the resistance of FAW to Cry1 and Cry2 Bt proteins is not linked with substantial fitness costs, and may persist in field conditions once present.

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Feeding preference of Spodoptera frugiperda on different sorghum genotypes

Cited by 6 publications

References 10 publications

Biological Parameters and Fertility Life Table of Spodoptera frugiperda in Different Host Plants

Biological Parameters and Fertility Life Table of Spodoptera frugiperda in Different Host Plants

Collection and inventory of pests on several sorghum varieties

Assessing fitness costs of the resistance of Spodoptera frugiperda (Lepidoptera: Noctuidae) to pyramided Cry1 and Cry2 insecticidal proteins on different host plants

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