An apparatus and the associated method which includes means for controlling an invasive organism. The means including a trolling apparatus, for attachment to an associated vehicle. The trolling apparatus is pulled through a body of water in response to movement of the associated vehicle. The housing carries a plurality of UV-C light sources for producing UV-C light at a wavelength of substantially 254 nm, whereby invasive organisms proximate to light emanating from at least one of said UV-C light source whereby invasive organisms are exposed to UV-C light at a wavelength of substantially 254 nm resulting in controlling an invasive organism. Other embodiments, attract organisms such as mosquitos and then expose them to UV-C light. The invention facilitates reduced use of herbicide.
