Next Article in Journal
Record of the Emerald Ash Borer (Agrilus planipennis) in Ukraine is Confirmed
Previous Article in Journal
Neuroethology of the Waggle Dance: How Followers Interact with the Waggle Dancer and Detect Spatial Information
Open AccessArticle

Amylose Inclusion Complexes as Emulsifiers for Garlic and Asafoetida Essential Oils for Mosquito Control

1
Crop Bioprotection Research Unit, Agricultural Research Service, U.S. Department of Agriculture, 1815 N. University St., Peoria, IL 61604, USA
2
Plant Polymer Research Unit, USDA, Agricultural Research Service, National Center for Agricultural Utilization Research, 1815 N. University St., Peoria, IL 61604, USA
*
Author to whom correspondence should be addressed.
Insects 2019, 10(10), 337; https://doi.org/10.3390/insects10100337
Received: 5 September 2019 / Revised: 20 September 2019 / Accepted: 8 October 2019 / Published: 11 October 2019
Although the insecticidal properties of some plant essential oils are well-documented, their use in integrated pest and vector management is complicated by their high volatility, low thermal stability, high sensitivity to oxidation, and low solubility in water. We investigated the use of bio-based N-1-hexadecylammonium chloride and sodium palmitate amylose inclusion complexes as emulsifiers for two essential oils, garlic and asafoetida, known to be highly toxic to mosquito larvae. Four emulsions of each essential oil based on amylose hexadecylammonium chloride and amylose sodium palmitate inclusion complexes were evaluated for their toxicity against Aedes aegypti L. larvae relative to bulk essential oils. All emulsions were significantly more toxic than the bulk essential oil with the lethal dosage ratios ranging from 1.09–1.30 relative to bulk essential oil. Droplet numbers ranged from 1.11 × 109 to 9.55 × 109 per mL and did not change significantly after a 6-month storage period. These findings demonstrated that amylose inclusion complexes enhanced the toxicity of essential oils and could be used to develop new essential oil based larvicides for use in integrated vector management. View Full-Text
Keywords: Aedes aegypti; essential oils; amylose inclusion complexes; emulsions Aedes aegypti; essential oils; amylose inclusion complexes; emulsions
Show Figures

Figure 1

MDPI and ACS Style

Muturi, E.J.; Hay, W.T.; Behle, R.W.; Selling, G.W. Amylose Inclusion Complexes as Emulsifiers for Garlic and Asafoetida Essential Oils for Mosquito Control. Insects 2019, 10, 337.

Show more citation formats Show less citations formats
Note that from the first issue of 2016, MDPI journals use article numbers instead of page numbers. See further details here.

Article Access Map by Country/Region

1
Back to TopTop