Critical considerations for evaluating and applying insect frass

I.G. Lopes; M. Gómez-Brandón; N. Praeg; J. Claeys; W. Yakti; M. Bitterlich; J.J. Jones; C.M. Geilfus; T. Klammsteiner

Critical considerations for evaluating and applying insect frass

In: BugBook

Authors:

I.G. Lopes

I.G. Lopes Department of Biosystems and Technology, Swedish University of Agricultural Sciences, Alnarp Campus, Sundsvägen 5, 234 56 Alnarp, Sweden

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M. Gómez-Brandón

M. Gómez-Brandón Grupo de Ecología Animal (GEA), Torre CACTI-Lab 95, Vigo University, Fonte das Abelleiras, s/n., E-36310 Vigo, Spain

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N. Praeg

N. Praeg Department of Microbiology, Universität Innsbruck, Technikerstrasse 25d, 6020 Innsbruck, Austria

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J. Claeys

J. Claeys Inagro, Ieperseweg 87, 8800 Rumbeke-Beitem, Belgium

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W. Yakti

W. Yakti Urban Plant Ecophysiology Division, Albrecht Daniel-Thaer Institute of Agriculture and Horticulture, Humboldt University of Berlin, Lentzeallee 55, 14195 Berlin, Germany

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M. Bitterlich

M. Bitterlich Urban Plant Ecophysiology Division, Albrecht Daniel-Thaer Institute of Agriculture and Horticulture, Humboldt University of Berlin, Lentzeallee 55, 14195 Berlin, Germany

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J.J. Jones

J.J. Jones Department of Biosystems Engineering, Faculty of Life Sciences, Albrecht Daniel Thaer-Institute of Agricultural and Horticultural Sciences, Humboldt-University of Berlin, Albrecht-Thaer-Weg 1, 14195 Berlin, Germany

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C.M. Geilfus

C.M. Geilfus Department of Soil Science and Plant Nutrition, Hochschule Geisenheim, Von-Lade-Straße 1, 65366 Geisenheim, Germany

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, and

T. Klammsteiner

T. Klammsteiner Department of Ecology, Universität Innsbruck, Technikerstrasse 25, 6020 Innsbruck, Austria

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Type:: Chapter

Pages:: 264–291

DOI:: https://doi.org/10.1163/9789004760790_012

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Abstract

Insect frass is one of the most abundant products in the insect industry, regardless of the farmed species. Rich in organic matter and plant nutrients, frass is a promising organic amendment that can be used in agriculture. While many benefits and challenges have been reported, several knowledge gaps remain unanswered, regarding the specific characteristics and mechanisms of its effects on soils and plants, particularly in terms of the processes driving these effects and interactions. This article aims to discuss recent research on frass and identify existing knowledge gaps, and propose strategies to improve research methodologies, increase comparability across studies, and generate more robust results. The topics covered include the evaluation of frass effects on soil physical properties, microbiological dynamics and fertility, as well as its effects on plant growth, development, and metabolism. The article also explores the potential of frass as an antimicrobial agent and highlights the need for stabilising and improving its quality and safety before it is used in agricultural activities. Looking forward, insect frass holds great promise as a sustainable input for agriculture, food production, and feed systems.

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BugBook

Practical Guidelines and Research Methods on Insects for Food and Feed

Series: Series of Insects as Food and Feed

E-Book ISBN:: 9789004760790

Publisher:: Wageningen Academic

Print Publication Date:: 12 Mar 2026

Subjects
- Life Sciences
  - General

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Critical considerations for evaluating and applying insect frass

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BugBook

Practical Guidelines and Research Methods on Insects for Food and Feed

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