Article Publish Status: FREE
Abstract Title:

Sensory Quality of Essential Oils and Their Synergistic Effect with Diatomaceous Earth, for the Control of Stored Grain Insects.

Abstract Source:

Insects. 2019 Apr 20 ;10(4). Epub 2019 Apr 20. PMID: 31010046

Abstract Author(s):

Erika Carla Pierattini, Stefano Bedini, Francesca Venturi, Roberta Ascrizzi, Guido Flamini, Rossella Bocchino, Jessica Girardi, Paolo Giannotti, Giuseppe Ferroni, Barbara Conti

Article Affiliation:

Erika Carla Pierattini


Essential oils (EOs) have gained increasing interest as a low-toxic, eco-friendly alternative to synthetic repellents and insecticides against insect pests. However, they have scarce practical application in the protection of stored grain because of their limited efficacy and their interference with the organoleptic properties of the grain. In this study, we evaluated the olfactory profile of the EOs of,, andand their toxicity against the main stored grain pest. Trained assessors identifiedand, as more suitable than theEO for the wheat treatment. In laboratory tests, the most toxic EO was the(LC= 36.36μL∙kg) while, the least toxic, was theone (LC= 77.59μL∙kg). The EOs were also tested combined with diatomaceous earths (DEs) showing synergistic effects (co-toxicity coefficient values ranging from 1.36 to 3.35 forandEOs, respectively). Overall,resulted as the best EO for the wheat treatment, considering its insect toxicity and olfactory profile. In real storage conditions, the wheat co-treated withEO and DEs showed a significantly lower mean infestation (1.5 insect kg) than the non-treated wheat (7.0 insect kg).

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