Journal
INDUSTRIAL CROPS AND PRODUCTS
Volume 158, Issue -, Pages -Publisher
ELSEVIER
DOI: 10.1016/j.indcrop.2020.113033
Keywords
Sea fennel; Essential oil; Nanoemulsion; Encapsulated SiNPs; Aedes aegypti; Spodopteralitura
Categories
Ask authors/readers for more resources
Crithmum maritimum L. (Apiaceae), also known as sea fennel, is a halophythe plant colonizing cliffs and coastal dunes and pebble of the Mediterranean sea and Atlantic ocean. Based on previous reports, this herb produces an essential oil endowed with insecticidal effects against various pests and insect vectors. In the present work, we investigated the insecticidal effectiveness of the seed essential oil and its encapsulated forms (nanoemulsion and SiO2 nanoparticles, SiNPs) against larvae of the mosquito Aedes aegypti and cotton leafworm Spodoptera litura, in terms of larval contact toxicity and reduction of adult longevity and fecundity. The essential oil composition was characterized by the phenylpropanoids dillapiole and myristicin and oxygenated monoterpenes gamma-terpinene and thymol methyl ether. Based on the insecticidal assays, we noticed that all developed products, namely sea fennel essential oil, nanoemulsion and encapsulated silica nanoparticles, showed significant toxicity against larvae and pupae of Ae. aegypti and S. litura. Notably, the SiNPs showed LC50 values ranging from 8.823 (I instar) to 17.911 mu L/L (pupa) on Ae. aegypti (I instar-pupa) and from 24.610 (I instar) to 64.546 mu L/L (pupa) on S. litura. Furthermore, all three selected bioinsecticides reduced longevity and fecundity in both targets. Overall the sea fennel essential oil and its encapsulated forms, i.e. nanoemulsion and SiNPs, are promising alternatives for the control of insects causing human diseases and damages in agriculture.
Authors
I am an author on this paper
Click your name to claim this paper and add it to your profile.
Reviews
Recommended
No Data Available