Unexplored Potentials of the Adult Black Soldier Fly: Behavioral Ecology, Reproductive Efficiency, and Ecological Contributions

A special issue of Insects (ISSN 2075-4450).

Deadline for manuscript submissions: 15 July 2025 | Viewed by 400

Special Issue Editors


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Guest Editor
Center Agriculture Food Environment (C3A), University of Trento, Via Edmund Mach 1, 38098 San Michele all’Adige, TN, Italy
Interests: Hermetia illucens; Tenebrio molitor; animal nutrition; alternative protein sources
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Guest Editor
BEF Biosystems s.r.l., Strada di Settimo 224/15, 10156 Torino, TO, Italy
Interests: entomology; insect rearing; Hermetia illucens; Tenebrio molitor; welfare; animal nutrition

Special Issue Information

Dear Colleagues,

Though its adult stage is still largely unexplored, insects and, in particular, the black soldier fly (Hermetia illucens L.) have attracted a lot of attention for their larval uses in waste management and as a sustainable supply of protein, presenting potential for creative study. By analyzing how environmental elements like light spectrum, temperature, humidity, and even auditory or vibrational signals affect mating behaviors like lekking and pheromone-mediated attraction, research into the behavioral ecology of adult insects could maximize breeding efficiency. Furthermore, more focus should be placed on the wellbeing and lifespan of insects because studies on physiological markers like oxidative stress levels or stress indicators like movement patterns may yield important information for enhancing productivity and survivability. Studying adult diets, in particular how changes in nutritional input impact fecundity, egg viability, and lifespan, is another exciting direction that could improve reproductive results through customized feeding schedules. Additionally, investigating the ecological functions of adult insects, including their interactions with local species and potential pollination contributions, may deepen our comprehension of their environmental significance. Knowledge advancement in these fields advances ecological and entomological science more broadly while also improving insects’ management systems for industrial use.

Dr. Sihem Dabbou
Dr. Marco Meneguz
Guest Editors

Manuscript Submission Information

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Keywords

  • black soldier fly
  • Tenebrio molitor
  • adult stage
  • mating behavior
  • waste

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Published Papers (1 paper)

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Research

12 pages, 1085 KiB  
Article
Impact of Rearing Substrates on Black Soldier Fly Growth and Fertility: A Semi-Industrial Scale Study to Optimize Egg Collection
by Qi-Hui Zhang and Nalini Puniamoorthy
Insects 2025, 16(2), 142; https://doi.org/10.3390/insects16020142 - 1 Feb 2025
Viewed by 247
Abstract
Juvenile environments can influence adult phenotypes in holometabolous insects. This study examines the effects of larval rearing substrates on the reproductive outcomes of Black Soldier Flies (BSFs) at a semi-industrial scale. Larvae were reared on five substrates. Larval growth, adult size, and reproductive [...] Read more.
Juvenile environments can influence adult phenotypes in holometabolous insects. This study examines the effects of larval rearing substrates on the reproductive outcomes of Black Soldier Flies (BSFs) at a semi-industrial scale. Larvae were reared on five substrates. Larval growth, adult size, and reproductive performance were monitored, with a specific focus on egg production and hatching rates across 17 continuous egg collection days. Egg production was positively correlated with female body weight, while male body weight appeared to influence the egg production peak. Extended larval feeding stages and shorter non-feeding periods were associated with an earlier onset of egg-laying, suggesting life-history traits as predictors for reproductive timing. Diets high in carbohydrates but low in protein and fat positively influenced larval growth, egg production, and female body weight, while diets rich in both protein and carbohydrates negatively affected all measured parameters. Notably, higher fecundity did not necessarily correlate with fertility (i.e., more viable larvae for bioconversion), highlighting the need to optimize diets for both egg quantity and hatchability to maximize productivity. These findings provide valuable insights for optimizing larval nutrition and egg collection practices, enhancing reproductive efficiency and overall productivity in industrial BSF farming. Full article
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