Curculio elephas is an oligophagous insect, attacking fruits of chestnut (Castanea spp.) and oak (Quercus spp.). It is considered one of the most important pests of European chestnut (Castanea sativa) in Europe. (Anastasaki E, Psoma A, Toufexi S, Partsinevelos G, Papachristos D, Avtzis D, Milonas P. Electrophysiological Responses of Curculio elephas (Coleoptera: Curculionidae) to Chestnut Plant Volatiles. Agriculture. 2023; 13(10):1991. https://doi.org/10.3390/agriculture13101991)
Fruit of Litchi chinenis Sonn. Lychee is a fruit with pleasing aroma and taste, both in fresh state and after processing. (FAO, 2004. Fruits of Viet Nam. https://www.fao.org/3/ad523e/ad523e00.htm)