Optimizing container size and rearing density for rapid and economic mass rearing of Oenopia conglobata (Linnaeus, 1758) (Coleoptera: Coccinellidae)

Mamay, Mehmet; Mutlu, Çetin

doi:10.16970/entoted.562724

Cited by 16 publications

(5 citation statements)

References 32 publications

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“…This implies the regulation of temperature, moisture and the metabolization of ingredients. Another critical point in diet management is maximizing the density of insects, which is also a strategy for reducing costs (Mamay & Mutla, 2019; Pascacio‐Villafán et al, 2018; Riddick & Wu, 2015).…”

Section: Introductionmentioning

confidence: 99%

Impact of high larval density on the performance of Anastrepha ludens: Competition or feeding facilitation?

Aceituno‐Medina

Hernández

García-Fajardo

et al. 2023

J Applied Entomology

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A critical issue point in diet management is maximizing density as a strategy for reducing costs. Artificial diets elaborated with large particle sizes have increased volume, possess high porosity and aeration capacity, are more penetrable and facilitate the movement of larvae and increase the bioavailability of nutrients. We report on an experiment aimed at determining if the bulking agent in the diet facilitates feeding and could increase the capacity to support high larval densities with a minimal effect of competition on life‐history traits of Anastrepha ludens. The results indicate that density affected larval and pupal weight, but not pupation at 24 h, adult emergence and flier percentage, which remained unchanged. However, there was an increase in yield and bioconversion. Larvae in high‐density conditions aggregated to increase the effect of regurgitation of amylases and proteases as a strategy to metabolize the food prior to ingestion through enzymes secreted in the saliva, contributing thus to feeding facilitation and the uptake of ingested food, which decreased the negative impact of competition under high‐density conditions. High density leads to an increase in food consumption and a concomitant increase in digestive enzyme activity, contributing to the bioavailability of macronutrients—proteins, carbohydrates and lipids—in the diet. Identifying the properties of bulking agents and other ingredients and their interaction under high‐density conditions is essential to develop novel artificial diets and improve the mass‐rearing strategies for the SIT.

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Section: Introductionmentioning

confidence: 99%

Impact of high larval density on the performance of Anastrepha ludens: Competition or feeding facilitation?

Aceituno‐Medina

Hernández

García-Fajardo

et al. 2023

J Applied Entomology

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“…Survival rate decreased sharply with time in the rearing unit without any obstruct, but it decreased moderately in the unit equipped with obstructs, indicating a decrease of the cannibalism of H. axyridis by using the obstructs. Specially, throughout the whole rearing periods, the larval survivals in the unit equipped with Con-C obstruct (312 cm 2 ) were relatively higher than those in the units with either decreasing the surface area to 291 cm 2 by the Con-A obstruct or increasing the surface area to 495 cm 2 by the Con-B, demonstrating the efficiency of obstructs was a pattern-dependent rather than surface area (Mamay and Mutlu 2019). Such results might be caused by some unrevealed behaviors of H. axyridis larvae, and more studies, e.g., video monitoring, need to be conducted to fully reveal the mechanism.…”

Section: Discussionmentioning

confidence: 90%

“…In this type of pest management system, space-saving in rearing natural enemies and maximizing of rearing density are vital to meet the quantity demand (Riddick and Wu 2015). More importantly, optimal rearing density in suitable units can decrease the maintenance cost (Mamay and Mutlu 2019). This is more crucial for the natural enemies that have cannibalism behaviors.…”

Section: Introductionmentioning

confidence: 99%

Obstructs-equipped apparatus reduces cannibalism and improves larval survival of the Coccinellid, Harmonia axyridis (Coleoptera: Coccinellidae)

Sun

Hao

Liu

et al. 2021

Egypt J Biol Pest Control

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Background Harmonia axyridis (Pallas) (Coleoptera: Coccinellidae) is an important biocontrol agent in native region of Asia, while its high propensity for cannibalism causes great obstacles in mass production. Provisioning obstructs in rearing containers could decrease the cannibalism of ladybird beetles. In this study, three different patterns of obstructs (Con-A, Con-B, and Con-C) were designed and equipped in plastic Petri dishes (95.38 cm3) as rearing units, and their efficiency for H. axyridis larval survival was tested. The potential of the high-density rearing was then evaluated using the optimal units with 16, 24, or 32 larvae per unit (named 16-L, 24-L, or 32-L, respectively). Results Larval survivals in obstructs-equipped units were generally higher than those in control, and significantly increased with the Con-C units (39.8% versus 74.2% at adult stage). With the Con-C units, the survivals were significantly higher at 16-L density (82.5%) than those at 24-L density (62.5%), but both were non-significantly different from those at 32-L density (70.0%). The weights of newly emerged adults (fit with the expected sex ratio of 1:1) at the higher densities were lower than those at 16-L density. Conclusions The results demonstrate that H. axyridis can be reared at a higher density (≈ 0.336 larvae/cm3) in a constrained unit and highlight the effects of obstructs in reducing cannibalism and improving insect survivals.

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“…All these facts mentioned demand an alternative management strategy against wheat aphids to ensure future food security through sustainable wheat production. Moreover, excessive use of synthetic chemical insecticides has imparted adverse effects on human and animal health as well as on the environment (Duman and Mutlu, 2019;Mamay and Mutlu, 2019;Mutlu et al, 2019;Nazir et al, 2019;Teke and Mutlu, 2021).…”

Section: Introductionmentioning

confidence: 99%

Evaluation of Some Selected Local Phytoextracts Against Wheat Aphid Schizaphis graminum Rondani (Hemiptera: Aphididae) under Laboratory and Field Conditions

Hussain¹,

Tayyab²,

Anwar³

et al. 2023

SJA

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Plant-derived insecticides have been focused for biorational pest management because these are relatively quickly biodegradable, cost-effective, less persistent and exhibit low mammalian toxicity than synthetic pesticides. This study assessed the toxicity potential of seven local plant species (i.e. parthenium Parthenium hysterophorus L., eucalyptus Eucalyptus camaldulensis Dehnh., milkweed Calotropis gigantean (L.) Dryand., bakain Melia azedarach L., neem Azadirachta indica A. Juss., tobacco Nicotiana tabacum L. and thorn apple Datura stramonium L.) against wheat aphid (Schizaphis graminum Rondani) under laboratory and field conditions. Using foliar spray method, toxicity bioassay was conducted with three different concentrations (i.e. 250, 500 and 1000 ppm) of methanolic plant extracts under controlled laboratory conditions, while three different concentrations (25, 50 and 75 g/L) of each botanical extract was tested in the field trial. Results showed a significant mortality and suppression of S. graminum individuals at 72 h after treatment in the laboratory and at 10 th day post-treatment in the field. In laboratory bioassay, maximum aphid mortality was caused by the extracts of D. stramonium (92%), A. indica (84%), N. tabacum (78%) and M. azedarach (70%) at 72 h post-treatment at their highest concentration (1000 ppm). Results of field trial showed significant aphid mortality by D. stramonium (78%), A. indica (72%), N. tabacum (68%) and M. azedarach (62%) extracts noted for their highest concentration (75 g/L) at 10 th day after treatment. Based on overall results of the study, the extracts of D. stramonium, A. indica, N. tabacum and M. azedarach are recommended to be considered for biorational management of S. graminum.

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Optimizing container size and rearing density for rapid and economic mass rearing of Oenopia conglobata (Linnaeus, 1758) (Coleoptera: Coccinellidae)

Cited by 16 publications

References 32 publications

Impact of high larval density on the performance of Anastrepha ludens: Competition or feeding facilitation?

Impact of high larval density on the performance of Anastrepha ludens: Competition or feeding facilitation?

Obstructs-equipped apparatus reduces cannibalism and improves larval survival of the Coccinellid, Harmonia axyridis (Coleoptera: Coccinellidae)

Evaluation of Some Selected Local Phytoextracts Against Wheat Aphid Schizaphis graminum Rondani (Hemiptera: Aphididae) under Laboratory and Field Conditions

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