Related Experiment Video
Updated: Jul 15, 2026

The Portable Chemical Sterilizer (PCS), D-FENS, and D-FEND ALL: Novel Chlorine Dioxide Decontamination Technologies for the Military
Published on: June 29, 2014
Natural-based repellent products: efficacy for military and general public uses
Robert J Novak1, Eugene J Gerberg
1University of Illinois, Illinois Natural History Survey, Champaign 61820, USA.
Abstract:
The major points addressed in this article regarding natural- or herbal-based repellents are as follows. 1) It is important to recognize the end user when developing and testing repellents. There is a major difference between repellents suitable for nuisance management by the general public as compared with military or public health uses when battle-field conditions or a disease risk is present. 2) The experimental design used to determine repellent efficacy must also recognize the end user. Pest densities should reflect real-world conditions as much as possible. 3) The experimental design should be directed to the pest population, not at a different product. Remember, we should use scientific logic, not market-driven tactics. 4) There is a need for specific regulatory standards for natural repellents to insure not only quality but the proper and most effective means of application and use. 5) There is a need for increased research and development for natural and synthetic repellents.
Related Concept Videos
Surface Membrane Barriers
The outer layer of the skin, the epidermis, is a robust barrier comprising layers of closely packed keratinized cells. This dense arrangement prevents microbes from penetrating the body. The periodic shedding of epidermal cells...
Chemical Agents for Microbial Control
Biological Methods for Microbial Control
Antimicrobial Effectiveness

