ISCEP 2026 At Sunway Putra Hotel 17-18 August 2026
ABSTRACT
ORAL PRESENTATION ABSTRACT
T1.06
EFFICACY OF METHOPRENE AND PYRIPROXYFEN ON GLYPHOSATE-EXPOSED AEDES LARVAL
Asri LAILATUL-NADHIRAH, Mohamad Johari IBAHIM, Ab Hamid NURULHUSNA, Koon Weng LAU", Chee Dhang CHEN, Saffiee NUR- SAFWANAH, Van Lun LOW, Siti Nursheena MOHD ZAIN', Othman WAN- NORAFIKAH
Faculty of Medicine, Unit Teknologi MARA (UTM) Selangor Branch, Sungai Buloh Campur Sanga Selangor Malaya Well Unit Takeolog MARA (LTM Shah Alam, Selangor, Malayala Medical Entomology List, Institute for Medical Reach MR National institute of Heath Sata Alam Shab Alam, Selangor, Malayala Center for Taxicology & Health A Studies (CORE Faculty of Health Scienc Ukara Kebangsaan Malaysia, Nala Lumpur Campus, Kuala Larpur, Malaysia Entoesofia Research Laboratory Research Facilities Cara, Department of Research Development, Liniversiti Malaya, Am Malaysia Faculty of Applied Sciences, Uniwa Tanalog MARA (LTM Pabang Branch, Jengka Campus Bandar Tun Abdul Razak Jangka Pabang Malaysia ghar hutution Centre of Excellence (Cat Tropical Infectious Disease Research and Education Canba (70REC) Universiti Malaya, Kala Lu of Diological Sciences, Faculty of Science, Unit M
Oral Presection Absheronate actr
The extensive use of agricultural herbicides like glyphosate may influence mosquito susceptibility to public health insecticides. Juvenile hormone mimics, such as methoprene and pyripraxyfer, are insect growth regulators (GRs) capable of inhibiting mosquito development and emergence. This research assessed the efficacy of methoprene and pyripraeylan, an Aedes aegypti and Aedes albopictus reference (REF) and glyphosate-exposed (GYE) larval populations. Initial bioassays on third-instar larvae of Ae. aegypt and Ae. albopictus REF and GYE populations at various concentrations determined the 50% emergence inhibition (IE) values for methoprene and pyripraryfen. First and fifth generations were subsequently exposed to these values to ascertain their emergence inhibition percentage (%). For methoprene, the IE% of Ae. aegypti REF larvae was 98.00-99.00% at an IE of 3.614 mg/L. whereas GYE populations showed an IE% of 92.00-96.00% at an IE,, of 3.828 mg/L. For Ae. albopictus larvae, an IE% of 94.00-98.00% and 8700-93.00% was achieved for REF and GYE populations at an IE of 0.182 mg/L and 0391 mg/L, respectively. Meanwhile, for pyripraxyfen, the E% of both A. aegypti REF and GYE populations at an IE of 2.000 mg/L and 0.428 mg/L, respectively, reached 99.00-100.00% As for Ae. albopictus, pyriproxylen exposure at an IE of 7731 mg/L and 0.480 mg/L resulted in an IE% of 92.00-98.00% and 99.00 % -100.00% for REF and GYE populations, respectively. Ultimately, pre-exposure to agricultural glyphosate did not reduce the effectiveness of methoprene and pyripraxyfen indicating their potential as alternative dengue vector control agents.
INTERNATIONAL SCIENTIFIC CONFERENCE ON ENTOMOLOGY AND PEST SCEP) 2006
Keywords: methoprene, gripen edes og Andes albopiens, insect growth regulators