There is a study on pesticides used on planes (called disinsection) dated 2007. It is a very technical study but does list some of the specific pesticides used. There are a number of countries that require "disinsection" including Australia and Jamaica but Aruba is not listed as one of the countries that requires this.
The PDF study can be found at
http://www.dhs.ca.gov/OHB/ohsep/airc...sinsection.pdf
Hope this helps.....Cheryl