ISCEP 2026 At Sunway Putra Hotel 17-18 August 2026
ABSTRACT
ORAL PRESENTATION ABSTRACT
T3.05
ASSESSMENT OF FOGGING MACHINE SPRAY DISTANCE AND ITS EFFECTS ON VEHICLE SURFACES
Ariffin FD, Kamarudin NA', Abdul Hadi A', Muhamed KA', Tan BCH', Hairuddin LH', M. Jaafar NF', Khairuddin K², Rasli R'
Medical Entornology Unit for Medical Research Nationales of Health, Ministry of Healt Malayala
Jabatan Kata Negeri Selangor, Malayala
Tahdone a@mohgowy
Thermal fogging is a common method for controlling adult mosquitoes in public health programa Although thermal fogging is an established method for large scale vector management, its effects on adjacent surfaces have not been systematically evaluated. This study investigated how nozzle distance and exposure duration affect white automotive paint, providing experimental data to optimize safety protocols and evidence-based guidance for public health thermal fogging. A field simulation using a handheld thermal fogging machine. the Agralog AF-35, was conducted. The experiment compared two diluents, water and diesel, in combination with an adulticide at different distances from the application site: far distances of 1 m and 3 m, and close distances of 5 cm and 10-15 cm. For close-distance applications, an infrared thermometer measured the nozzle temperature, and the time until visible discoloration was recorded. Visible changes were scored from 0 (no visible change) to 4 (severe yellowing) of the painted surface. Applications at standard distances of 1 m and 3 m resulted in a stain score of 0, with the paint remaining intact regardless of the diluent used. In contrast, close-proximity spraying caused significant surface damage. At 10-15 cm, the surface temperature reached approximately 170 °C, producing visible discoloration after 12 seconds of exposure. At 5 cm, the temperature increased to 196 "C, resulting in severe yellowing within 19 seconds. These findings indicate that surface discoloration is associated with the thermal effects of the fogging nozzle rather than the chemical composition of the insecticide formulations. Consequently, maintaining a minimum operational distance of 1 m is recommended to prevent vehicle surface damage during public health field operations. These results provide evidence-based guidelines for mosquito control personnel to minimize property damage while maintaining the effectiveness of public health interventions.
Keywords: Thermal fogging water control spray distance public health
INTERNATIONAL SCIENTIFIC CONFERENCE ON ENTOMOLOGY AND PEST SCEP) 2005