TY - JOUR

T1 - Diseases in edible insect rearing systems

AU - Maciel-Vergara, G.

AU - Jensen, A. B.

AU - Lecocq, A.

AU - Eilenberg, J.

PY - 2021

Y1 - 2021

N2 - Due to a swift and continuous growth of the insect rearing industry during the last two decades, there is a need for a better understanding of insect diseases (caused by insect pathogens). In the insect production sector, insect diseases are a bottleneck for every type and scale of rearing system with different degrees of technology investment (i.e. semi-open rearing, closed rearing, industrial production, small-scale farming). In this paper, we provide an overview of insect pathogens that are causing disease in the most common insect species reared or collected for use in food and feed. We also include a few examples of diseases of insect species, which are not (yet) reported to be used as food or feed; those examples may increase our understanding of insect diseases in general and for the development of disease prevention and control measures. We pay special attention to the effect of selected biotic and abiotic factors as potential triggers of insect diseases. We discuss the effect of such factors in combination with other production variables on disease development and insect immunocompetence. Additionally, we touch upon prevention and control measures that have been carried out and suggested up to now for insect production systems. Finally, we point towards possible future research directions with possibilities to enhance the resilience of insect production to insect disease outbreaks.

AB - Due to a swift and continuous growth of the insect rearing industry during the last two decades, there is a need for a better understanding of insect diseases (caused by insect pathogens). In the insect production sector, insect diseases are a bottleneck for every type and scale of rearing system with different degrees of technology investment (i.e. semi-open rearing, closed rearing, industrial production, small-scale farming). In this paper, we provide an overview of insect pathogens that are causing disease in the most common insect species reared or collected for use in food and feed. We also include a few examples of diseases of insect species, which are not (yet) reported to be used as food or feed; those examples may increase our understanding of insect diseases in general and for the development of disease prevention and control measures. We pay special attention to the effect of selected biotic and abiotic factors as potential triggers of insect diseases. We discuss the effect of such factors in combination with other production variables on disease development and insect immunocompetence. Additionally, we touch upon prevention and control measures that have been carried out and suggested up to now for insect production systems. Finally, we point towards possible future research directions with possibilities to enhance the resilience of insect production to insect disease outbreaks.

KW - edible insects

KW - insect rearing systems

KW - insect diseases

KW - epizootics

KW - stress factors

KW - NUCLEAR POLYHEDROSIS-VIRUS

KW - BIOLOGICAL-CONTROL AGENTS

KW - ANISOPLIAE VAR. ACRIDUM

KW - CARBON-DIOXIDE

KW - RELATIVE-HUMIDITY

KW - IMMUNE FUNCTION

KW - BEAUVERIA-BASSIANA

KW - STRATIOLAELAPS-SCIMITUS

KW - SCHISTOCERCA-GREGARIA

KW - ENTOMOPHAGA-MAIMAIGA

U2 - 10.3920/JIFF2021.0024

DO - 10.3920/JIFF2021.0024

M3 - Review

VL - 7

SP - 621

EP - 638

JO - Journal of Insects as Food and Feed

JF - Journal of Insects as Food and Feed

SN - 2352-4588

IS - 5

ER -