Development and reprotuction of Spodoptera eridania on natural hosts and artificial diet

Silva, A.; Baronio, Cléber Antonio; Galzer, E. C. W.; Garcia, Mauro Silveira; Botton, Marcos

doi:10.1590/1519-6984.177219

Cited by 9 publications

(6 citation statements)

References 20 publications

(40 reference statements)

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“…On the other hand, the T L estimated in this study (11.2 °C) was higher than that estimated by Foerster and Dionísio 23 (10.8 °C). Despite some studies showing that the host plant can affect the development time of S. eridania 44,45 , nothing is known about its influence on the estimations of thermal thresholds. A study that employed mathematical models to describe the temperature‐dependent development rate of Plutella xylostella (L., 1758) (Lepidoptera: Plutellidae) fed on two different host plants found only slight differences in the estimated thermal thresholds 46 .…”

Section: Discussionmentioning

confidence: 99%

Temperature‐dependent development models describing the effects of temperature on the development of Spodoptera eridania

Sampaio

Krechemer

Marchioro

2020

Pest Management Science

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BACKGROUND The southern armyworm, Spodoptera eridania, is a polyphagous species native to the American tropics that recently invaded Africa. Knowledge of the impact of temperature on its development and survival is important to understand the risks of this species spreading to other regions and to develop phenological models for pest management. This study evaluated the effects of temperature on the development and survival of S. eridania and selected mathematical models to simulate its development. RESULTS The southern armyworm completed its development between 15 and 32 °C, but eggs did not hatch at 34 °C. Lower survival and higher rates of deformities in adults were recorded at 15 and 32 °C. Among the ten mathematical models evaluated, Briere‐2, Lactin‐2 and Shi were considered suitable for describing the temperature‐dependent development rate of S. eridania. The lower thermal threshold estimated by these models for the egg to adult life cycle ranged from 10.8 to 12.1 °C, whereas the upper threshold ranged between 33.9 and 35.0 °C. CONCLUSIONS The southern armyworm can develop within a wide range of temperatures, which partially explains its wide distribution in regions with different climatic conditions, and demonstrates its potential to occur in regions outside its native range. Our findings can be employed in the development of management strategies using the selected models to predict the occurrence of S. eridania in the field and determine the most effective times to implement control measures.

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Section: Discussionmentioning

confidence: 99%

Temperature‐dependent development models describing the effects of temperature on the development of Spodoptera eridania

Sampaio

Krechemer

Marchioro

2020

Pest Management Science

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“…This disparity may be attributed to factors such as media humidity or chamber texture, or to the presence of fungi and parasites on the natural logs. Eggs on the artificial diet were sterilized to reduce contamination in the study, whereas eggs on the natural logs may have been affected by the poor nutritional quality and allelochemicals present in the sweetgum logs [ 39 , 40 , 41 ]. Bark beetles require sterols for eclosion [ 42 ], and the addition of sterols in future artificial diet formulations may further improve the development of A. suncei .…”

Section: Discussionmentioning

confidence: 99%

The Sweetgum Inscriber, Acanthotomicus suncei (Coleoptera: Curculionidae: Scolytinae) Reared on Artificial Diets and American Sweetgum Logs

Zhang

Sun

et al. 2023

Insects

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The sweetgum inscriber, Acanthotomicus suncei (Coleoptera: Curculionidae: Scolytinae), is a recently discovered pest of American sweetgum planted in China, with a potential for causing a devastating invasion into North America. Research on the beetle has been hampered by a dwindling access to breeding material. We tested the effect of four artificial diets on A. suncei’s developmental time, length and weight of adults, egg hatching rate, pupation rate, and eclosion rate. Additionally, we evaluated the same parameters on A. suncei reared on American sweetgum logs. Only one diet supported the full development of A. suncei after 30 d. Beetles reared on this diet, which was made of small quantities of agar and additives (i.e., inositol, potassium sorbate, and methylparaben), supported the shortest developmental time of 45.55 ± 1.24 d. Beetles reared on American sweetgum logs exhibited a longer developmental time of 59.52 ± 4.52 d. Beetles reared on the artificial diet were markedly bigger and heavier than those reared on American sweetgum logs (p < 0.01). The egg hatching rate (58.90% ± 6.80%) and eclosion rate (86.50% ± 4.69%) of A. suncei on the artificial diet were significantly greater than those on sweetgum logs. However, the pupation rate (38.60% ± 8.36%) was much lower on the artificial diet than on the sweetgum logs. Here, we reported the best artificial diet for A. suncei and discuss the advantages and disadvantages over rearing the beetle on American sweetgum logs.

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“…Our findings also suggest that the strains of FAW metabolize the artificial diet differently. The diet has been widely used for several Lepidoptera, including FAW, demonstrating good performance (Gardner et al, 1984; Perkins, 1979; Silva et al, 2018), However, most experiments were performed using the corn strain. There is only one study as far as we know showing that CS larvae were significantly heavier than RS larvae when they were fed the artificial diet (Silva-Brandão et al, 2017).…”

Section: Discussionmentioning

confidence: 99%

Non-Targeted Metabolomics Reveal Differences in the Metabolic Profile of the Fall Armyworm Strains When Feeding Different Food Sources

Oliveira

Phelan

Labate

et al. 2022

Preprint

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Spodoptera frugiperda, the fall armyworm (FAW), is an important polyphagous agricultural pest feeding on nearly 350 host plants. FAW is undergoing incipient speciation with two well-characterized host-adapted strains, the "corn" (CS) and "rice" (RS) strains, which are morphologically identical but carry several genes under positive selection for host adaptation. We used non-targeted metabolomics based on gas chromatography/mass spectrometry to identify differences in metabolite profiles of the larval gut of CS and RS feeding on different host plants. Larvae were fed on artificial diet, maize, rice, or cotton leaves from eclosion to the sixth instar, when they had their midgut dissected for the analysis. This study revealed that the midgut metabolome of FAW varied due to larval diet and differed between the FAW host-adapted strains. Additionally, we identified several candidate metabolites that may be involved in the adaptation of CS and RS to their host plants. Our findings provide clues toward the gut metabolic activities of the FAW strains.

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Development and reprotuction of Spodoptera eridania on natural hosts and artificial diet

Cited by 9 publications

References 20 publications

Temperature‐dependent development models describing the effects of temperature on the development of Spodoptera eridania

Temperature‐dependent development models describing the effects of temperature on the development of Spodoptera eridania

The Sweetgum Inscriber, Acanthotomicus suncei (Coleoptera: Curculionidae: Scolytinae) Reared on Artificial Diets and American Sweetgum Logs

Non-Targeted Metabolomics Reveal Differences in the Metabolic Profile of the Fall Armyworm Strains When Feeding Different Food Sources

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