Agar and Carrageenan as Cost-Effective Gelling Agents in Yeast-Reduced Artificial Diets for Mass-Rearing Fruit Flies and Their Parasitoids

The development of cost-effective diets for mass-rearing fruit flies (Diptera: Tephritidae) and their parasitoids in pest control programs based on the Sterile Insect Technique is a high priority worldwide. To this end, we tested carrageenan, agar, gelatin and two types of pregelatinized corn starch...

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Main Authors: Carlos Pascacio-Villafán, Larissa Guillén, Martín Aluja
Format: Article
Language:English
Published: MDPI AG 2020-02-01
Series:Insects
Subjects:
Online Access:https://www.mdpi.com/2075-4450/11/2/131
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author Carlos Pascacio-Villafán
Larissa Guillén
Martín Aluja
author_facet Carlos Pascacio-Villafán
Larissa Guillén
Martín Aluja
author_sort Carlos Pascacio-Villafán
collection DOAJ
description The development of cost-effective diets for mass-rearing fruit flies (Diptera: Tephritidae) and their parasitoids in pest control programs based on the Sterile Insect Technique is a high priority worldwide. To this end, we tested carrageenan, agar, gelatin and two types of pregelatinized corn starches as gelling agents at varying percentages in a yeast-reduced liquid larval diet for rearing the Mexfly, <i>Anastrepha ludens</i>. Only diets with 0.234% (<i>w</i>/<i>w</i>) agar or 0.424% carrageenan were identified as diets with potential for mass-rearing <i>A. ludens</i> in terms of the number of pupae recovered from the diet, pupal weight, adult emergence, flight ability and diet cost. Comparative experiments showed that yeast-reduced agar and carrageenan gel diets produced heavier pupae and higher proportions of flying adults than the standard mass-rearing diet. The gel-agar and mass-rearing diets produced more pupae than the gel-carrageenan diet, but the latter produced more suitable larvae as hosts for rearing of <i>Diachasmimorpha longicaudata</i> (Hymenoptera: Braconidae) females, a widely used fruit fly biocontrol agent. Yeast-reduced agar and carrageenan gel diets could represent cost-effective fruit fly mass-rearing diets if a practical system for gel diet preparation and dispensation at fruit fly mass-rearing facilities is developed.
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spelling doaj.art-14681f6dd93041f7b588345ab8ad57482022-12-22T01:41:33ZengMDPI AGInsects2075-44502020-02-0111213110.3390/insects11020131insects11020131Agar and Carrageenan as Cost-Effective Gelling Agents in Yeast-Reduced Artificial Diets for Mass-Rearing Fruit Flies and Their ParasitoidsCarlos Pascacio-Villafán0Larissa Guillén1Martín Aluja2Red de Manejo Biorracional de Plagas y Vectores, Clúster Científico y Tecnológico BioMimic®, Instituto de Ecología, A.C., Carretera Antigua a Coatepec 351, El Haya, Xalapa 91073, Veracruz, MexicoRed de Manejo Biorracional de Plagas y Vectores, Clúster Científico y Tecnológico BioMimic®, Instituto de Ecología, A.C., Carretera Antigua a Coatepec 351, El Haya, Xalapa 91073, Veracruz, MexicoRed de Manejo Biorracional de Plagas y Vectores, Clúster Científico y Tecnológico BioMimic®, Instituto de Ecología, A.C., Carretera Antigua a Coatepec 351, El Haya, Xalapa 91073, Veracruz, MexicoThe development of cost-effective diets for mass-rearing fruit flies (Diptera: Tephritidae) and their parasitoids in pest control programs based on the Sterile Insect Technique is a high priority worldwide. To this end, we tested carrageenan, agar, gelatin and two types of pregelatinized corn starches as gelling agents at varying percentages in a yeast-reduced liquid larval diet for rearing the Mexfly, <i>Anastrepha ludens</i>. Only diets with 0.234% (<i>w</i>/<i>w</i>) agar or 0.424% carrageenan were identified as diets with potential for mass-rearing <i>A. ludens</i> in terms of the number of pupae recovered from the diet, pupal weight, adult emergence, flight ability and diet cost. Comparative experiments showed that yeast-reduced agar and carrageenan gel diets produced heavier pupae and higher proportions of flying adults than the standard mass-rearing diet. The gel-agar and mass-rearing diets produced more pupae than the gel-carrageenan diet, but the latter produced more suitable larvae as hosts for rearing of <i>Diachasmimorpha longicaudata</i> (Hymenoptera: Braconidae) females, a widely used fruit fly biocontrol agent. Yeast-reduced agar and carrageenan gel diets could represent cost-effective fruit fly mass-rearing diets if a practical system for gel diet preparation and dispensation at fruit fly mass-rearing facilities is developed.https://www.mdpi.com/2075-4450/11/2/131<i>anastrepha ludens</i>insect rearingdiet optimizationsterile insect techniquehymenopterous parasitoids
spellingShingle Carlos Pascacio-Villafán
Larissa Guillén
Martín Aluja
Agar and Carrageenan as Cost-Effective Gelling Agents in Yeast-Reduced Artificial Diets for Mass-Rearing Fruit Flies and Their Parasitoids
Insects
<i>anastrepha ludens</i>
insect rearing
diet optimization
sterile insect technique
hymenopterous parasitoids
title Agar and Carrageenan as Cost-Effective Gelling Agents in Yeast-Reduced Artificial Diets for Mass-Rearing Fruit Flies and Their Parasitoids
title_full Agar and Carrageenan as Cost-Effective Gelling Agents in Yeast-Reduced Artificial Diets for Mass-Rearing Fruit Flies and Their Parasitoids
title_fullStr Agar and Carrageenan as Cost-Effective Gelling Agents in Yeast-Reduced Artificial Diets for Mass-Rearing Fruit Flies and Their Parasitoids
title_full_unstemmed Agar and Carrageenan as Cost-Effective Gelling Agents in Yeast-Reduced Artificial Diets for Mass-Rearing Fruit Flies and Their Parasitoids
title_short Agar and Carrageenan as Cost-Effective Gelling Agents in Yeast-Reduced Artificial Diets for Mass-Rearing Fruit Flies and Their Parasitoids
title_sort agar and carrageenan as cost effective gelling agents in yeast reduced artificial diets for mass rearing fruit flies and their parasitoids
topic <i>anastrepha ludens</i>
insect rearing
diet optimization
sterile insect technique
hymenopterous parasitoids
url https://www.mdpi.com/2075-4450/11/2/131
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