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All Journal Agrovigor: Jurnal Agroekoteknologi
Najiyah, Aliyatul
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Agriculture, Biological Sciences & Forestry

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Feeding preferences of Spodoptera frugiperda in response to new different artificial diet formulas Megasari, Dita; Atasa, Dita; Damayanti, Denia Rista; Maulana, Arman Adrian; Najiyah, Aliyatul; Khoiri, Syaiful
Agrovigor Vol 18, No 2 (2025): In press
Publisher : Universitas Trunojoyo Madura

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.21107/agrovigor.v18i2.28209

Abstract

Maize is an important food commodity that is vulnerable to pest attacks, one of which is the fall armyworm (Spodoptera frugiperda). This invasive pest targets the growing points of maize plants, leading to decreased productivity. To support biological research on this pest, the development of artificial diets is crucial due to the limitations of natural feed. This study aimed to evaluate the effect of artificial diet formulations on the feeding preference of S. frugiperda larvae. Three diet formulations with varying compositions were tested. Preference tests were conducted on third-instar larvae to observe their quick response and measure feed consumption (daily intake). Preference tests were performed over time intervals of 1, 2, 4, 6, and 24 hours. The attraction results showed that formula 3, which included natural ingredients such as baby corn and maize sprouts, had the highest initial attraction (30% within 1 hour). The physical and chemical characteristics of the artificial diets influenced the larvae's preference, with formula 3 being more effective for quick response, while formulas 1 and 2 were more stable for prolonged use. The highest daily consumption by larvae was observed with formula 3 (0.066 ± 0.027 grams), although it was not significantly different from formula 1 (0.058 ± 0.029 grams). However, formula 3 was considered the most optimal for maximising feed consumption. Bite marks and feeding holes indicated that the larvae consumed and damaged the feed during the maintenance process.
Evaluation of Artificial Diets Formulations for Laboratory-based Rearing Spodoptera frugiperda Megasari, Dita; Atasa, Dita; Damayanti, Denia Rista; Maulana, Arman Adrian; Najiyah, Aliyatul; Khoiri, Syaiful
Agrovigor Vol 18, No 2 (2025): In press
Publisher : Universitas Trunojoyo Madura

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.21107/agrovigor.v18i2.28209

Abstract

Corn is an important food commodity that susceptible to pest attacks such as armyworm (Spodoptera frugiperda). This invasive pest attacks the growing points of corn plants and causes decreased productivity. Supporting biological research on this pest, the development of artificial feed is crucial considering the limited natural feed. This study aimed to evaluate the effect of artificial diet formulations on the preferences of S. frugiperda larvae. Three formulations with different compositions are studied in this research. Instar 3 larvae were subjected to a preference test to determine the rapid response of the larvae and the weight of the feed consumed (daily consumption). The preference test was carried out in duration 1, 2, 4, 6, and 24 hours. The results showed that Formula 3, which uses natural ingredients such as baby corn and corn sprouts, has the highest initial attractiveness (30% in 1 hour). The physical and chemical characteristics of artificial diet affect the preferences of larvae with formula 3 being the most effective for rapid response, and formulas 1 and 2 being more stable for continuous use. The highest daily consumption of larvae was in formula 3 (0.066 ± 0.027 grams). However, it was not significantly different from formula 1 (0.058 ± 0.029 grams). The use of artificial feeds in the laboratory rearing of S. frugiperda offers a viable alternative to natural feeds, with Formula 3 showing a high initial preference, Formula 1 remaining attractive over time, and Formula 2 showing lower consumption, likely due to its efficient nutritional composition, as evidenced by feeding activity through visible bite marks and feed perforations.
Co-Authors Damayanti, Denia Rista Dita Atasa Dita Megasari Maulana, Arman Adrian