scholarly journals Essential Oil-Based Nano-Biopesticides: Formulation and Bioactivity against the Confused Flour Beetle Tribolium confusum

2021 ◽  
Vol 13 (17) ◽  
pp. 9746
Author(s):  
Davide Palermo ◽  
Giulia Giunti ◽  
Francesca Laudani ◽  
Vincenzo Palmeri ◽  
Orlando Campolo
Keyword(s):  
Acute Toxicity ◽  
Allium Sativum ◽  
Tribolium Confusum ◽  
Mentha Piperita ◽  
Artemisia Vulgaris ◽  
Stored Product Pests ◽  
Stored Product Pest ◽  
Nano Emulsion ◽  
Confused Flour Beetle ◽  
Coleoptera Tenebrionidae

Post-harvest pest control can rely on few approved pesticides and tools; hence, there is a rising interest in new sustainable, eco-friendly approaches. In this study, eight commercial essential oils (EOs) (anise Pimpinella anisum, artemisia Artemisia vulgaris, fennel Foenicum vulgare, garlic Allium sativum, lavender Lavandula angustifolia, mint Mentha piperita, rosemary Rosmarinus officinalis, and sage Salvia officinalis) were selected for their bioactivity and commercial availability, and then formulated in nano-emulsions. Repellency and acute toxicity of the developed nano-formulations were tested against a key stored product pest, Tribolium confusum (Coleoptera: Tenebrionidae). All the developed nano-emulsions presented optimal physical characteristics (droplet dimension = 95.01–144.30 nm; PDI = 0.146–0.248). All the formulations were repellent over time tested against adult beetles, in area preference bioassays. The best repellent was the anise EO-based formulation (RC50 = 0.033 mg). Mortality values from cold aerosol trials showed that the majority of tested EOs caused immediate acute toxicity, and garlic EO nano-emulsion caused the highest mortality of T. confusum adults (LC50 = 0.486 mg/L of air). EO-based nano-insecticides, used as cold aerosol and gel, are promising control methods against stored product pests, which can be integrated and combined with other sustainable biorational approaches.

scholarly journals Wood volatiles as attractants of the confused flour beetle, Tribolium confusum (Coleoptera: Tenebrionidae)

2019 ◽  
Vol 9 (1) ◽  
Author(s):  
Masatoshi Hori ◽  
Yoshimi Aoki ◽  
Kazutaka Shinoda ◽  
Mitsuo Chiba ◽  
Rikiya Sasaki
Keyword(s):  
Tribolium Confusum ◽  
Flour Beetle ◽  
Confused Flour Beetle ◽  
Coleoptera Tenebrionidae

scholarly journals Postharvest Treatment of Tribolium confusum Jacquelin du Val Adults with Commercial Biopesticides

Agriculture ◽  
2019 ◽  
Vol 9 (10) ◽  
pp. 226 ◽  
Author(s):  
Spiridon Mantzoukas ◽  
Ioannis Lagogiannis ◽  
Ioannis Pettas ◽  
Georgia Korbou ◽  
Alexandra Magita ◽  
...  
Keyword(s):  
Tribolium Confusum ◽  
Insecticidal Effect ◽  
Lecanicillium Lecanii ◽  
Linum Usitatissimum L ◽  
Anova Model ◽  
Kaplan Meier ◽  
Postharvest Treatment ◽  
Mortality Percentage ◽  
Confused Flour Beetle ◽  
Coleoptera Tenebrionidae

Within the context of the harmful side-effects of chemical pest control applications, the present study investigated the insecticidal effect of three commercial biopesticides, the fungal Metab (Beauveria bassiana, Metarhizium anisopliae) and Lecan (Lecanicillium lecanii), as well as raw zeolite, against Tribolium confusum Jacquelin du Val (Coleoptera: Tenebrionidae), also known as the confused flour beetle. To this end, we sprayed Tribolium confusum adults with suspensions of the said biopesticides, at three different dosages (250 ppm, 500 ppm, and 1000 ppm) on Avena sativa L. and Linum usitatissimum L. hull and no hull seeds. The data were analyzed in terms of three- and four-way ANOVA model, and the overall survival was determined while using the Kaplan–Meier method. The mortality of Tribolium confusum adults was recorded and analyzed in correlation with the following parameters: dose, product (seed), days, and treatment as factors. At the end of the experiment, all of the biopesticides were effectively pathogenic, but there was variation in their effectiveness in terms of the T. confusum mortality that they caused, depending on the product (seed). The type of seed can play a role in the pathogenicity or effectiveness of the biopesticides. Additionally, our results showed that the mortality percentage was dependent on the dose and treatment of the commercial biopesticides.

scholarly journals Effects of Aerosol Insecticide Application Location on the Patterns of Residual Efficacy Against Tribolium confusum (Coleoptera: Tenebrionidae) Larvae

2020 ◽  
Vol 113 (4) ◽  
pp. 2007-2015
Author(s):  
Deanna S Scheff ◽  
James F Campbell ◽  
Frank H Arthur ◽  
Kun Yan Zhu
Keyword(s):  
Spatial Pattern ◽  
Adult Emergence ◽  
Insect Growth Regulator ◽  
Tribolium Confusum ◽  
Spatial Coverage ◽  
Residual Efficacy ◽  
Efficacy Index ◽  
And Storage ◽  
Confused Flour Beetle ◽  
Coleoptera Tenebrionidae

Abstract Aerosol insecticides are one tool that pest management professionals can utilize as a spatial treatment inside food facilities and storage warehouses. Methods of aerosol application can vary significantly and can affect the spatial pattern of efficacy achieved. We investigated how the location from which an aerosol insecticide is applied inside a mill influenced the spatial dispersal of the insecticide. Treatments were performed using two commercial formulations, pyrethrin + pyriproxyfen (insect growth regulator [IGR]) and pyrethrin + methoprene (IGR), applied at one of three static locations or a fourth application comprising of splitting the application among all three locations. Concrete arenas were placed out at different locations within the mill during applications. At 2, 4, and 6 wk post-aerosol application, Tribolium confusum Jacquelin du Val, confused flour beetle, larvae were added to the concrete arenas and monitored for development and efficacy was evaluated based on percent adult emergence and an efficacy index that ranged from 1 (low) to 21 (high). The spatial pattern of aerosol coverage varied between insecticide formulations and the aerosol application location. Areas of the mill near walls, corners, equipment, and farthest away from the application location had larger zones of low efficacy index values among all four application locations. This study illustrated that the aerosol insecticide formulation, application location, and delivery method all significantly influenced residual efficacies of the insecticides. To increase the overall spatial coverage and IGR efficacy, targeting these areas of a mill floor with the aerosol or additional intervention techniques would increase uniform coverages and overall effectiveness.

EVALUATION OF INSECTICIDES FOR CONTROL OF STORED-PRODUCT PESTS IN TRANSPORT VEHICLES1

1987 ◽  
Vol 22 (3) ◽  
pp. 224-236
Author(s):  
W. R. Halliday ◽  
N. O. Morgan ◽  
R. L. Kirkpatrick
Keyword(s):  
Tribolium Confusum ◽  
Flour Beetle ◽  
Stored Product Insects ◽  
Stored Product Pests ◽  
Trogoderma Glabrum ◽  
Confused Flour Beetle ◽  
Black Carpet Beetle ◽  
Cargo Containers

Thirty-three insecticides were evaluated over a 6 year period for their effectiveness against three species of stored-product insects: the confused flour beetle, Tribolium confusum Jacquelin duVal; the black carpet beetle, Attagenus unicolor (Brahm); and a warehouse beetle, Trogoderma glabrum (Herbst). The tests were conducted in transport trailer vans or sea-going cargo containers. The insecticides were formulated for application as aerosols or dusts or both. Dusts generally caused greater mortality than aerosols. Pyrethroids were more effective than other classes of insecticides tested. Cyfluthrin and S-cyano-(3-phenoxyphenyl)- methyl (1 R-cis-3-(l,2-dibromo-2,2-dichloroethyl)-2,2-dimethylcyclopropanecarboxylate were the most promising pyrethroids. The most effective organophosphate aerosol was O-(3- chloro-l-methyl-1H/-pyrazol-5-yl) O-ethyl O-methyl phosphorothioate. Generally, carbamates had very limited toxicity, as did other miscellaneous insecticides.

EVALUATION OF CEREAL CULTIVARS FOR FEEDING VALUE WITH THE CONFUSED FLOUR BEETLE, TRIBOLIUM CONFUSUM (COLEOPTERA: TENEBRIONIDAE)

1972 ◽  
Vol 104 (9) ◽  
pp. 1427-1431 ◽  
Author(s):  
D. R. Metcalfe ◽  
S. R. Loschiavo ◽  
A. J. McGinnis
Keyword(s):  
Larval Development ◽  
Nutritional Value ◽  
Tribolium Confusum ◽  
Flour Beetle ◽  
Feeding Value ◽  
Ranking Order ◽  
Confused Flour Beetle ◽  
Cereal Cultivars ◽  
Coleoptera Tenebrionidae

AbstractBased on rate of larval development, the confused flour beetle, Tribolium confusum (Duval), consistently differentiated among selected cereal cultivars provided as food. Although variations occurred in ranking order from test to test, some cultivars always permitted faster larval development than others. There was good correlation between results from tests with the beetles and from those with chicks fed the same rations. Addition of minerals and micronutrients to the cereals changed the nutritional value for the beetles but the extent of change was not uniform among the cultivars.

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