The use of pesticides, as carried out in the last 50 years, caused several negative environmental and human health consequences, leading to the development of alternative techniques to control pests, such as the use of compounds of plant origin. In this study we assessed the fumigant and repellent activity of both the enantiomers of limonene, a monoterpene usually found in many plant species, against Tribolium confusum du Val. We tested both molecules at different doses, air temperatures and in absence and presence of flour. R-(+)-limonene resulted more effective than S-(-)-limonene, indeed it was able to reach 100% of efficacy at a concentration of 85 mg/L air when tested at different temperatures without flour. Data showed a positive relationship between efficacy and temperature, and a negative effect of the presence of debris on the bioactivity of limonene. Furthermore, repellency trials reported a higher activity of R-(+)-limonene compared to the other enantiomer.
Fumigant and repellent activity of limonene enantiomers against Tribolium confusum du Val / Malacrinò, A; Campolo, O; Laudani, F; Palmeri, V. - In: NEOTROPICAL ENTOMOLOGY. - ISSN 1519-566X. - 45:(2016), pp. 597-603. [10.1007/s13744-016-0402-1]
Fumigant and repellent activity of limonene enantiomers against Tribolium confusum du Val
Malacrinò A;Campolo O;Palmeri V
2016-01-01
Abstract
The use of pesticides, as carried out in the last 50 years, caused several negative environmental and human health consequences, leading to the development of alternative techniques to control pests, such as the use of compounds of plant origin. In this study we assessed the fumigant and repellent activity of both the enantiomers of limonene, a monoterpene usually found in many plant species, against Tribolium confusum du Val. We tested both molecules at different doses, air temperatures and in absence and presence of flour. R-(+)-limonene resulted more effective than S-(-)-limonene, indeed it was able to reach 100% of efficacy at a concentration of 85 mg/L air when tested at different temperatures without flour. Data showed a positive relationship between efficacy and temperature, and a negative effect of the presence of debris on the bioactivity of limonene. Furthermore, repellency trials reported a higher activity of R-(+)-limonene compared to the other enantiomer.File | Dimensione | Formato | |
---|---|---|---|
Malacrino_2016_Neotrop Entomol_Fumigant_editor.pdf
non disponibili
Tipologia:
Versione Editoriale (PDF)
Licenza:
Tutti i diritti riservati (All rights reserved)
Dimensione
506.59 kB
Formato
Adobe PDF
|
506.59 kB | Adobe PDF | Visualizza/Apri Richiedi una copia |
I documenti in IRIS sono protetti da copyright e tutti i diritti sono riservati, salvo diversa indicazione.