An experiment was carried out on oil palm plantation located at Kotawaringin Barat, Central Kalimantan, Indonesia to find out the preference of E. kamerunicus on female inflorescences in mineral, sandy and peat soil types. Experiments was conducted in outdoors using a modified olfactometer and female inflorescences was taken from 7 years old oil palm. The percentage of E. kamerunicus that visited female inflorescences from mineral, sandy and peat was 44%, 33% and 20% respectively. The percentage of E. kamerunicus that visited female inflorescences from mineral soil as source of the odour was larger than the weevil visited at the sandy and peat soil types with a very significant difference. Analysis of chemical compound in female inflorescences from different soil types was needed to support the experiment. There was same composition of the odors released by female inflorescences from different soil types but in different concentration. The lowest concentration was found in female inflorescences from peat than sandy and mineral soil types. This might be influenced the preference of E. kamerunicus to visit female inflorescences.
